Miniature Bearings Australia

minibearings

Log in / Create Account / Home
Please order online - No Counter Sales

Collection: Springs - Extension - Stainless Steel

Springs -> Extension -> Stainless Steel

OD (D0)	Approx. Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Spring Rate	Initial Tension (IT)	Indicative Image
Extension Springs - 38.1x139.7x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 139.7 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 307.340 mm	Spring Rate 1.121 N/mm	Initial Tension (IT) 18.7 N
Material: Steel Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1397-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $49.05 AUD Regular price ~~$101.63 AUD~~ Sale price $49.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0)	Approx. Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
Extension Springs - 38.1x139.7x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 139.7 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 307.340 mm
Material: Steel Spring Rate: 1.121 N/mm Initial Tension (IT): 18.7 N Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1397-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $49.05 AUD Regular price ~~$101.63 AUD~~ Sale price $49.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1397-31-M (Each) --- Extension Springs - 38.1x139.7x3.15 mm Music Wire - Steel Spring Sale ES-3810-1397-31-M (Each) --- Extension Springs - 38.1x139.7x3.15 mm Music Wire - Steel Spring Regular price $49.05 AUD Regular price ~~$101.63 AUD~~ Sale price $49.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x139.7x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 139.7 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 252.480 mm	Spring Rate 3.784 N/mm	Initial Tension (IT) 29.8 N
Material: Steel Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1397-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $72.05 AUD Regular price ~~$150.48 AUD~~ Sale price $72.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x139.7x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 139.7 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 252.480 mm
Material: Steel Spring Rate: 3.784 N/mm Initial Tension (IT): 29.8 N Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1397-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $72.05 AUD Regular price ~~$150.48 AUD~~ Sale price $72.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1397-40-M (Each) --- Extension Springs - 38.1x139.7x4.01 mm Music Wire - Steel Spring Sale ES-3810-1397-40-M (Each) --- Extension Springs - 38.1x139.7x4.01 mm Music Wire - Steel Spring Regular price $72.05 AUD Regular price ~~$150.48 AUD~~ Sale price $72.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x139.7x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 139.7 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 212.850 mm	Spring Rate 6.740 N/mm	Initial Tension (IT) 48.8 N
Material: Steel Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1397-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $84.68 AUD Regular price ~~$177.23 AUD~~ Sale price $84.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x139.7x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 139.7 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 212.850 mm
Material: Steel Spring Rate: 6.740 N/mm Initial Tension (IT): 48.8 N Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1397-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $84.68 AUD Regular price ~~$177.23 AUD~~ Sale price $84.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1397-45-M (Each) --- Extension Springs - 38.1x139.7x4.5 mm Music Wire - Steel Spring Sale ES-3810-1397-45-M (Each) --- Extension Springs - 38.1x139.7x4.5 mm Music Wire - Steel Spring Regular price $84.68 AUD Regular price ~~$177.23 AUD~~ Sale price $84.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x152.4x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 152.4 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 352.040 mm	Spring Rate 0.946 N/mm	Initial Tension (IT) 18.7 N
Material: Steel Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1524-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $52.77 AUD Regular price ~~$109.66 AUD~~ Sale price $52.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x152.4x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 152.4 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 352.040 mm
Material: Steel Spring Rate: 0.946 N/mm Initial Tension (IT): 18.7 N Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1524-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $52.77 AUD Regular price ~~$109.66 AUD~~ Sale price $52.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1524-31-M (Each) --- Extension Springs - 38.1x152.4x3.15 mm Music Wire - Steel Spring Sale ES-3810-1524-31-M (Each) --- Extension Springs - 38.1x152.4x3.15 mm Music Wire - Steel Spring Regular price $52.77 AUD Regular price ~~$109.66 AUD~~ Sale price $52.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x152.4x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 152.4 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 286.000 mm	Spring Rate 3.188 N/mm	Initial Tension (IT) 29.8 N
Material: Steel Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1524-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $76.77 AUD Regular price ~~$160.38 AUD~~ Sale price $76.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x152.4x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 152.4 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 286.000 mm
Material: Steel Spring Rate: 3.188 N/mm Initial Tension (IT): 29.8 N Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1524-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $76.77 AUD Regular price ~~$160.38 AUD~~ Sale price $76.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1524-40-M (Each) --- Extension Springs - 38.1x152.4x4.01 mm Music Wire - Steel Spring Sale ES-3810-1524-40-M (Each) --- Extension Springs - 38.1x152.4x4.01 mm Music Wire - Steel Spring Regular price $76.77 AUD Regular price ~~$160.38 AUD~~ Sale price $76.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x152.4x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 152.4 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 238.760 mm	Spring Rate 5.730 N/mm	Initial Tension (IT) 48.8 N
Material: Steel Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1524-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $90.23 AUD Regular price ~~$188.89 AUD~~ Sale price $90.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x152.4x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 152.4 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 238.760 mm
Material: Steel Spring Rate: 5.730 N/mm Initial Tension (IT): 48.8 N Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1524-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $90.23 AUD Regular price ~~$188.89 AUD~~ Sale price $90.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1524-45-M (Each) --- Extension Springs - 38.1x152.4x4.5 mm Music Wire - Steel Spring Sale ES-3810-1524-45-M (Each) --- Extension Springs - 38.1x152.4x4.5 mm Music Wire - Steel Spring Regular price $90.23 AUD Regular price ~~$188.89 AUD~~ Sale price $90.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x165.1x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 165.1 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 396.750 mm	Spring Rate 0.823 N/mm	Initial Tension (IT) 18.7 N
Material: Steel Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1651-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $56.14 AUD Regular price ~~$116.64 AUD~~ Sale price $56.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x165.1x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 165.1 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 396.750 mm
Material: Steel Spring Rate: 0.823 N/mm Initial Tension (IT): 18.7 N Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1651-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $56.14 AUD Regular price ~~$116.64 AUD~~ Sale price $56.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1651-31-M (Each) --- Extension Springs - 38.1x165.1x3.15 mm Music Wire - Steel Spring Sale ES-3810-1651-31-M (Each) --- Extension Springs - 38.1x165.1x3.15 mm Music Wire - Steel Spring Regular price $56.14 AUD Regular price ~~$116.64 AUD~~ Sale price $56.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x165.1x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 165.1 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 319.530 mm	Spring Rate 2.768 N/mm	Initial Tension (IT) 29.8 N
Material: Steel Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1651-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $81.59 AUD Regular price ~~$170.71 AUD~~ Sale price $81.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x165.1x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 165.1 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 319.530 mm
Material: Steel Spring Rate: 2.768 N/mm Initial Tension (IT): 29.8 N Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1651-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $81.59 AUD Regular price ~~$170.71 AUD~~ Sale price $81.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1651-40-M (Each) --- Extension Springs - 38.1x165.1x4.01 mm Music Wire - Steel Spring Sale ES-3810-1651-40-M (Each) --- Extension Springs - 38.1x165.1x4.01 mm Music Wire - Steel Spring Regular price $81.59 AUD Regular price ~~$170.71 AUD~~ Sale price $81.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x165.1x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 165.1 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 264.410 mm	Spring Rate 4.970 N/mm	Initial Tension (IT) 48.8 N
Material: Steel Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1651-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $95.86 AUD Regular price ~~$200.88 AUD~~ Sale price $95.86 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x165.1x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 165.1 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 264.410 mm
Material: Steel Spring Rate: 4.970 N/mm Initial Tension (IT): 48.8 N Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1651-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $95.86 AUD Regular price ~~$200.88 AUD~~ Sale price $95.86 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1651-45-M (Each) --- Extension Springs - 38.1x165.1x4.5 mm Music Wire - Steel Spring Sale ES-3810-1651-45-M (Each) --- Extension Springs - 38.1x165.1x4.5 mm Music Wire - Steel Spring Regular price $95.86 AUD Regular price ~~$200.88 AUD~~ Sale price $95.86 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x177.8x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 177.8 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 441.200 mm	Spring Rate 0.718 N/mm	Initial Tension (IT) 18.7 N
Material: Steel Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1778-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $59.95 AUD Regular price ~~$124.85 AUD~~ Sale price $59.95 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x177.8x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 177.8 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 441.200 mm
Material: Steel Spring Rate: 0.718 N/mm Initial Tension (IT): 18.7 N Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1778-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $59.95 AUD Regular price ~~$124.85 AUD~~ Sale price $59.95 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1778-31-M (Each) --- Extension Springs - 38.1x177.8x3.15 mm Music Wire - Steel Spring Sale ES-3810-1778-31-M (Each) --- Extension Springs - 38.1x177.8x3.15 mm Music Wire - Steel Spring Regular price $59.95 AUD Regular price ~~$124.85 AUD~~ Sale price $59.95 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x177.8x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 177.8 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 353.160 mm	Spring Rate 2.417 N/mm	Initial Tension (IT) 29.8 N
Material: Steel Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1778-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $86.32 AUD Regular price ~~$180.61 AUD~~ Sale price $86.32 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x177.8x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 177.8 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 353.160 mm
Material: Steel Spring Rate: 2.417 N/mm Initial Tension (IT): 29.8 N Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1778-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $86.32 AUD Regular price ~~$180.61 AUD~~ Sale price $86.32 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1778-40-M (Each) --- Extension Springs - 38.1x177.8x4.01 mm Music Wire - Steel Spring Sale ES-3810-1778-40-M (Each) --- Extension Springs - 38.1x177.8x4.01 mm Music Wire - Steel Spring Regular price $86.32 AUD Regular price ~~$180.61 AUD~~ Sale price $86.32 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x177.8x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 177.8 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 290.070 mm	Spring Rate 4.400 N/mm	Initial Tension (IT) 48.8 N
Material: Steel Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1778-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $101.68 AUD Regular price ~~$213.12 AUD~~ Sale price $101.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x177.8x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 177.8 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 290.070 mm
Material: Steel Spring Rate: 4.400 N/mm Initial Tension (IT): 48.8 N Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1778-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $101.68 AUD Regular price ~~$213.12 AUD~~ Sale price $101.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1778-45-M (Each) --- Extension Springs - 38.1x177.8x4.5 mm Music Wire - Steel Spring Sale ES-3810-1778-45-M (Each) --- Extension Springs - 38.1x177.8x4.5 mm Music Wire - Steel Spring Regular price $101.68 AUD Regular price ~~$213.12 AUD~~ Sale price $101.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x190.5x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 190.5 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 485.700 mm	Spring Rate 0.631 N/mm	Initial Tension (IT) 18.7 N
Material: Steel Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1905-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $63.68 AUD Regular price ~~$132.66 AUD~~ Sale price $63.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x190.5x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 190.5 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 485.700 mm
Material: Steel Spring Rate: 0.631 N/mm Initial Tension (IT): 18.7 N Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-1905-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $63.68 AUD Regular price ~~$132.66 AUD~~ Sale price $63.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1905-31-M (Each) --- Extension Springs - 38.1x190.5x3.15 mm Music Wire - Steel Spring Sale ES-3810-1905-31-M (Each) --- Extension Springs - 38.1x190.5x3.15 mm Music Wire - Steel Spring Regular price $63.68 AUD Regular price ~~$132.66 AUD~~ Sale price $63.68 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x190.5x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 190.5 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 386.590 mm	Spring Rate 2.172 N/mm	Initial Tension (IT) 29.8 N
Material: Steel Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1905-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $91.59 AUD Regular price ~~$191.84 AUD~~ Sale price $91.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x190.5x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 190.5 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 386.590 mm
Material: Steel Spring Rate: 2.172 N/mm Initial Tension (IT): 29.8 N Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-1905-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $91.59 AUD Regular price ~~$191.84 AUD~~ Sale price $91.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1905-40-M (Each) --- Extension Springs - 38.1x190.5x4.01 mm Music Wire - Steel Spring Sale ES-3810-1905-40-M (Each) --- Extension Springs - 38.1x190.5x4.01 mm Music Wire - Steel Spring Regular price $91.59 AUD Regular price ~~$191.84 AUD~~ Sale price $91.59 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x190.5x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 190.5 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 315.980 mm	Spring Rate 3.940 N/mm	Initial Tension (IT) 48.8 N
Material: Steel Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1905-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $108.50 AUD Regular price ~~$227.59 AUD~~ Sale price $108.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x190.5x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 190.5 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 315.980 mm
Material: Steel Spring Rate: 3.940 N/mm Initial Tension (IT): 48.8 N Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-1905-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $108.50 AUD Regular price ~~$227.59 AUD~~ Sale price $108.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-1905-45-M (Each) --- Extension Springs - 38.1x190.5x4.5 mm Music Wire - Steel Spring Sale ES-3810-1905-45-M (Each) --- Extension Springs - 38.1x190.5x4.5 mm Music Wire - Steel Spring Regular price $108.50 AUD Regular price ~~$227.59 AUD~~ Sale price $108.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x203.2x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 203.2 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 530.610 mm	Spring Rate 0.578 N/mm	Initial Tension (IT) 18.7 N
Material: Steel Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-2032-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $69.05 AUD Regular price ~~$144.04 AUD~~ Sale price $69.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x203.2x3.15 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 203.2 mm	Wire Diameter (d) 3.15 mm	Max. Extension (L1) 530.610 mm
Material: Steel Spring Rate: 0.578 N/mm Initial Tension (IT): 18.7 N Load at L1: 207.470 N End Type: Closed - Full Loop
Part Number: ES-3810-2032-31-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $69.05 AUD Regular price ~~$144.04 AUD~~ Sale price $69.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-2032-31-M (Each) --- Extension Springs - 38.1x203.2x3.15 mm Music Wire - Steel Spring Sale ES-3810-2032-31-M (Each) --- Extension Springs - 38.1x203.2x3.15 mm Music Wire - Steel Spring Regular price $69.05 AUD Regular price ~~$144.04 AUD~~ Sale price $69.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x203.2x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 203.2 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 420.120 mm	Spring Rate 1.962 N/mm	Initial Tension (IT) 29.8 N
Material: Steel Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-2032-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $96.77 AUD Regular price ~~$202.86 AUD~~ Sale price $96.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x203.2x4.01 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 203.2 mm	Wire Diameter (d) 4.01 mm	Max. Extension (L1) 420.120 mm
Material: Steel Spring Rate: 1.962 N/mm Initial Tension (IT): 29.8 N Load at L1: 456.700 N End Type: Closed - Full Loop
Part Number: ES-3810-2032-40-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $96.77 AUD Regular price ~~$202.86 AUD~~ Sale price $96.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-2032-40-M (Each) --- Extension Springs - 38.1x203.2x4.01 mm Music Wire - Steel Spring Sale ES-3810-2032-40-M (Each) --- Extension Springs - 38.1x203.2x4.01 mm Music Wire - Steel Spring Regular price $96.77 AUD Regular price ~~$202.86 AUD~~ Sale price $96.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x203.2x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 203.2 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 341.630 mm	Spring Rate 3.560 N/mm	Initial Tension (IT) 48.8 N
Material: Steel Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-2032-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $114.50 AUD Regular price ~~$240.34 AUD~~ Sale price $114.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x203.2x4.5 mm Music Wire - Steel Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 203.2 mm	Wire Diameter (d) 4.50 mm	Max. Extension (L1) 341.630 mm
Material: Steel Spring Rate: 3.560 N/mm Initial Tension (IT): 48.8 N Load at L1: 542.240 N End Type: Closed - Full Loop
Part Number: ES-3810-2032-45-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $114.50 AUD Regular price ~~$240.34 AUD~~ Sale price $114.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-2032-45-M (Each) --- Extension Springs - 38.1x203.2x4.5 mm Music Wire - Steel Spring Sale ES-3810-2032-45-M (Each) --- Extension Springs - 38.1x203.2x4.5 mm Music Wire - Steel Spring Regular price $114.50 AUD Regular price ~~$240.34 AUD~~ Sale price $114.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x371x5 mm Stainless Steel - Music Wire Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 371.0 mm	Wire Diameter (d) 5.00 mm			Initial Tension (IT) 2.9 N
Material: Music Wire Body Length: 304.800 mm End Type: Closed - Full Loop
Part Number: ES-3810-3710-50-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $184.05 AUD Regular price ~~$220.85 AUD~~ Sale price $184.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x371x5 mm Stainless Steel - Music Wire Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 371.0 mm	Wire Diameter (d) 5.00 mm
Material: Music Wire Initial Tension (IT): 2.9 N Body Length: 304.800 mm End Type: Closed - Full Loop
Part Number: ES-3810-3710-50-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $184.05 AUD Regular price ~~$220.85 AUD~~ Sale price $184.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-3710-50-M (Each) --- Extension Springs - 38.1x371x5 mm Stainless Steel - Music Wire Spring Sale ES-3810-3710-50-M (Each) --- Extension Springs - 38.1x371x5 mm Stainless Steel - Music Wire Spring Regular price $184.05 AUD Regular price ~~$220.85 AUD~~ Sale price $184.05 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 38.1x914x4.12 mm Stainless Steel - Steel - None Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 914.0 mm	Wire Diameter (d) 4.12 mm		Spring Rate 12.05 N/mm	Initial Tension (IT) 12.0 N
Material: Steel - None
Part Number: ES-3810-9140-41-S2 (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Jun 27, 2026 Regular price $180.77 AUD Regular price ~~$216.93 AUD~~ Sale price $180.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 38.1x914x4.12 mm Stainless Steel - Steel - None Spring
OD (D0) 38.10 mm	Approx. Overall Length (L0) 914.0 mm	Wire Diameter (d) 4.12 mm
Material: Steel - None Spring Rate: 12.05 N/mm Initial Tension (IT): 12.0 N
Part Number: ES-3810-9140-41-S2 (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Jun 27, 2026 Regular price $180.77 AUD Regular price ~~$216.93 AUD~~ Sale price $180.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-3810-9140-41-S2 (Each) --- Extension Springs - 38.1x914x4.12 mm Stainless Steel - Steel - None Spring Sale ES-3810-9140-41-S2 (Each) --- Extension Springs - 38.1x914x4.12 mm Stainless Steel - Steel - None Spring Regular price $180.77 AUD Regular price ~~$216.93 AUD~~ Sale price $180.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
Extension Springs - 44.5x434.5x5 mm Stainless Steel - Music Wire Spring
OD (D0) 44.50 mm	Approx. Overall Length (L0) 434.5 mm	Wire Diameter (d) 5.00 mm			Initial Tension (IT) 1.5 N
Material: Music Wire Body Length: 355.600 mm End Type: Closed - Full Loop
Part Number: ES-4445-4345-50-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $216.23 AUD Regular price ~~$259.47 AUD~~ Sale price $216.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Extension Springs - 44.5x434.5x5 mm Stainless Steel - Music Wire Spring
OD (D0) 44.50 mm	Approx. Overall Length (L0) 434.5 mm	Wire Diameter (d) 5.00 mm
Material: Music Wire Initial Tension (IT): 1.5 N Body Length: 355.600 mm End Type: Closed - Full Loop
Part Number: ES-4445-4345-50-M (Each) Out of Stock \| Backorder Now \| Backorder now for delivery around Sat, Aug 01, 2026 Regular price $216.23 AUD Regular price ~~$259.47 AUD~~ Sale price $216.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-4445-4345-50-M (Each) --- Extension Springs - 44.5x434.5x5 mm Stainless Steel - Music Wire Spring Sale ES-4445-4345-50-M (Each) --- Extension Springs - 44.5x434.5x5 mm Stainless Steel - Music Wire Spring Regular price $216.23 AUD Regular price ~~$259.47 AUD~~ Sale price $216.23 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale

Miniature Bearings Australia Pty Ltd
3/8 Boyland Avenue
Coopers Plains, Queensland, Australia.
(ABN: 94 069 113 800)