Balls - Inspection

Balls -> Inspection

There are 11 products in the sub-categories of Balls - Inspection. Browse the Balls - Inspection products table.

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Category Details

A selection of Inspection Balls. Premium short shank inspection balls are used as reference points for inspection applications in conjunction with coordinate measuring machines to accurately measure the workpiece.

  • Inspection balls are similar to checking balls and are also used for dimensional inspection and calibration purposes.
  • nspection balls are designed to meet specific measurement requirements and standards, and they are used to check the accuracy, roundness, and surface finish of machined features.
  • These balls are commonly used in quality control processes to ensure that manufactured parts meet the required specifications.
  • Made from case hardened 8620 steel
  • Concentricity of ball to shank is 0.00254mm (0.0001 in.) TIR

Miniature Bearings Australia - MBA Minibearings

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A more concise listing may be found in the Balls - Inspection category on the Small Parts & Bearings online store.
Diameter (A) Shank Diameter (B) Base to Centre (C) Shoulder to Centre (D) Thread Shoulder Diameter Indicative
Image
Diameter (A)
6.350
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Shank Diameter (B)
3.167
mm
+ 0.0 / - 0.0051
(Equiv. 0.125 in.)
Base to Centre (C)
14.732
mm
+/- 0.0051
(Equiv. 0.58 in.)
Shoulder to Centre (D)
5.080
mm
Thread
Solid
Shoulder Diameter
6.350
mm
Inspection Balls - 6.35x3.167x14.732 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-00635-HS-SOL
Inspection Balls - 6.35x3.167x14.732 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$388.23 AUD
$388.23 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A) Shank Diameter (B) Base to Centre (C) Shoulder to Centre (D) Indicative
Image
Diameter (A)
6.350
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Shank Diameter (B)
3.167
mm
+ 0.0 / - 0.0051
(Equiv. 0.125 in.)
Base to Centre (C)
14.732
mm
+/- 0.0051
(Equiv. 0.58 in.)
Shoulder to Centre (D)
5.080
mm
Inspection Balls - 6.35x3.167x14.732 mm - Carbon Steel
Material: Carbon Steel    Thread: Solid    Shoulder Diameter: 6.350 mm   
Part Number: BIN-00635-HS-SOL
Inspection Balls - 6.35x3.167x14.732 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$388.23 AUD
$388.23 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Shank Diameter (B)
4.755
mm
+ 0.0 / - 0.0051
(Equiv. 0.187 in.)
Base to Centre (C)
18.796
mm
+/- 0.0051
(Equiv. 0.74 in.)
Shoulder to Centre (D)
7.620
mm
Thread
Solid
Shoulder Diameter
9.525
mm
Inspection Balls - 9.525x4.755x18.796 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-00953-HS-SOL
Inspection Balls - 9.525x4.755x18.796 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$324.68 AUD
$389.62 AUD $324.68 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Shank Diameter (B)
4.755
mm
+ 0.0 / - 0.0051
(Equiv. 0.187 in.)
Base to Centre (C)
18.796
mm
+/- 0.0051
(Equiv. 0.74 in.)
Shoulder to Centre (D)
7.620
mm
Inspection Balls - 9.525x4.755x18.796 mm - Carbon Steel
Material: Carbon Steel    Thread: Solid    Shoulder Diameter: 9.525 mm   
Part Number: BIN-00953-HS-SOL
Inspection Balls - 9.525x4.755x18.796 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$324.68 AUD
$389.62 AUD $324.68 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Shank Diameter (B)
7.938
mm
+ 0.0 / - 0.0051
(Equiv. 0.313 in.)
Base to Centre (C)
18.796
mm
+/- 0.0051
(Equiv. 0.74 in.)
Shoulder to Centre (D)
7.620
mm
Thread
8-32 UNC (4.166mm)
Shoulder Diameter
12.700
mm
Inspection Balls - 9.525x7.938x18.796 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-00953-HS
Inspection Balls - 9.525x7.938x18.796 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$422.77 AUD
$507.33 AUD $422.77 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Shank Diameter (B)
7.938
mm
+ 0.0 / - 0.0051
(Equiv. 0.313 in.)
Base to Centre (C)
18.796
mm
+/- 0.0051
(Equiv. 0.74 in.)
Shoulder to Centre (D)
7.620
mm
Inspection Balls - 9.525x7.938x18.796 mm - Carbon Steel
Material: Carbon Steel    Thread: 8-32 UNC (4.166mm)    Shoulder Diameter: 12.700 mm   
Part Number: BIN-00953-HS
Inspection Balls - 9.525x7.938x18.796 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$422.77 AUD
$507.33 AUD $422.77 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.342
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
16.002
mm
+/- 0.0051
(Equiv. 0.63 in.)
Shoulder to Centre (D)
7.938
mm
Thread
6-32 UNC (3.500mm)
Shoulder Diameter
12.700
mm
Inspection Balls - 12.7x6.342x16.002 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-01270-HS-A
Inspection Balls - 12.7x6.342x16.002 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$422.86 AUD
$507.44 AUD $422.86 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.342
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
16.002
mm
+/- 0.0051
(Equiv. 0.63 in.)
Shoulder to Centre (D)
7.938
mm
Inspection Balls - 12.7x6.342x16.002 mm - Carbon Steel
Material: Carbon Steel    Thread: 6-32 UNC (3.500mm)    Shoulder Diameter: 12.700 mm   
Part Number: BIN-01270-HS-A
Inspection Balls - 12.7x6.342x16.002 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$422.86 AUD
$507.44 AUD $422.86 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.342
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
22.352
mm
+/- 0.0051
(Equiv. 0.88 in.)
Shoulder to Centre (D)
12.700
mm
Thread
6-32 UNC (3.500mm)
Shoulder Diameter
12.700
mm
Inspection Balls - 12.7x6.342x22.352 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-01270-HS-B
Inspection Balls - 12.7x6.342x22.352 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$429.23 AUD
$515.07 AUD $429.23 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.342
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
22.352
mm
+/- 0.0051
(Equiv. 0.88 in.)
Shoulder to Centre (D)
12.700
mm
Inspection Balls - 12.7x6.342x22.352 mm - Carbon Steel
Material: Carbon Steel    Thread: 6-32 UNC (3.500mm)    Shoulder Diameter: 12.700 mm   
Part Number: BIN-01270-HS-B
Inspection Balls - 12.7x6.342x22.352 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$429.23 AUD
$515.07 AUD $429.23 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.342
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
23.622
mm
+/- 0.0051
(Equiv. 0.93 in.)
Shoulder to Centre (D)
10.160
mm
Thread
6-32 UNC (3.500mm)
Shoulder Diameter
12.700
mm
Inspection Balls - 12.7x6.342x23.622 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-01270-HS-C (25 Pcs)
Inspection Balls - 12.7x6.342x23.622 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,138.50 AUD
$12,166.20 AUD $10,138.50 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
6.342
mm
+ 0.0 / - 0.0051
(Equiv. 0.25 in.)
Base to Centre (C)
23.622
mm
+/- 0.0051
(Equiv. 0.93 in.)
Shoulder to Centre (D)
10.160
mm
Inspection Balls - 12.7x6.342x23.622 mm - Carbon Steel
Material: Carbon Steel    Thread: 6-32 UNC (3.500mm)    Shoulder Diameter: 12.700 mm   
Part Number: BIN-01270-HS-C (25 Pcs)
Inspection Balls - 12.7x6.342x23.622 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,138.50 AUD
$12,166.20 AUD $10,138.50 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Base to Centre (C)
33.274
mm
+/- 0.0051
(Equiv. 1.31 in.)
Shoulder to Centre (D)
9.525
mm
Thread
10-24 UNC (4.762mm)
Shoulder Diameter
15.875
mm
Inspection Balls - 12.7x9.525x33.274 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-01270-HS-D (25 Pcs)
Inspection Balls - 12.7x9.525x33.274 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,722.41 AUD
$12,866.89 AUD $10,722.41 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Shank Diameter (B)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Base to Centre (C)
33.274
mm
+/- 0.0051
(Equiv. 1.31 in.)
Shoulder to Centre (D)
9.525
mm
Inspection Balls - 12.7x9.525x33.274 mm - Carbon Steel
Material: Carbon Steel    Thread: 10-24 UNC (4.762mm)    Shoulder Diameter: 15.875 mm   
Part Number: BIN-01270-HS-D (25 Pcs)
Inspection Balls - 12.7x9.525x33.274 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,722.41 AUD
$12,866.89 AUD $10,722.41 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+ 0.0 / - 0.0051
(Equiv. 0.625 in.)
Shank Diameter (B)
7.930
mm
+ 0.0 / - 0.0051
(Equiv. 0.312 in.)
Base to Centre (C)
27.432
mm
+/- 0.0051
(Equiv. 1.08 in.)
Shoulder to Centre (D)
11.430
mm
Thread
8-32 UNC (4.166mm)
Shoulder Diameter
15.875
mm
Inspection Balls - 15.875x7.93x27.432 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-01588-HS-A (25 Pcs)
Inspection Balls - 15.875x7.93x27.432 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,725.50 AUD
$12,870.60 AUD $10,725.50 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+ 0.0 / - 0.0051
(Equiv. 0.625 in.)
Shank Diameter (B)
7.930
mm
+ 0.0 / - 0.0051
(Equiv. 0.312 in.)
Base to Centre (C)
27.432
mm
+/- 0.0051
(Equiv. 1.08 in.)
Shoulder to Centre (D)
11.430
mm
Inspection Balls - 15.875x7.93x27.432 mm - Carbon Steel
Material: Carbon Steel    Thread: 8-32 UNC (4.166mm)    Shoulder Diameter: 15.875 mm   
Part Number: BIN-01588-HS-A (25 Pcs)
Inspection Balls - 15.875x7.93x27.432 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,725.50 AUD
$12,870.60 AUD $10,725.50 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+ 0.0 / - 0.0051
(Equiv. 0.625 in.)
Shank Diameter (B)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Base to Centre (C)
36.068
mm
+/- 0.0051
(Equiv. 1.42 in.)
Shoulder to Centre (D)
11.430
mm
Thread
10-24 UNC (4.762mm)
Shoulder Diameter
15.875
mm
Inspection Balls - 15.875x9.525x36.068 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-01588-HS-B (25 Pcs)
Inspection Balls - 15.875x9.525x36.068 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,834.86 AUD
$13,001.84 AUD $10,834.86 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
15.875
mm
+ 0.0 / - 0.0051
(Equiv. 0.625 in.)
Shank Diameter (B)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Base to Centre (C)
36.068
mm
+/- 0.0051
(Equiv. 1.42 in.)
Shoulder to Centre (D)
11.430
mm
Inspection Balls - 15.875x9.525x36.068 mm - Carbon Steel
Material: Carbon Steel    Thread: 10-24 UNC (4.762mm)    Shoulder Diameter: 15.875 mm   
Part Number: BIN-01588-HS-B (25 Pcs)
Inspection Balls - 15.875x9.525x36.068 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$10,834.86 AUD
$13,001.84 AUD $10,834.86 AUD
Excludes GST and overseas Taxes & Duties
Per 25
Quantity Required

Backorder: Out of Stock.
Diameter (A)
19.050
mm
+ 0.0 / - 0.0051
(Equiv. 0.75 in.)
Shank Diameter (B)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Base to Centre (C)
38.862
mm
+/- 0.0051
(Equiv. 1.53 in.)
Shoulder to Centre (D)
14.288
mm
Thread
10-24 UNC (4.762mm)
Shoulder Diameter
19.050
mm
Inspection Balls - 19.05x9.525x38.862 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-01905-HS
Inspection Balls - 19.05x9.525x38.862 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$384.77 AUD
$461.73 AUD $384.77 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
19.050
mm
+ 0.0 / - 0.0051
(Equiv. 0.75 in.)
Shank Diameter (B)
9.525
mm
+ 0.0 / - 0.0051
(Equiv. 0.375 in.)
Base to Centre (C)
38.862
mm
+/- 0.0051
(Equiv. 1.53 in.)
Shoulder to Centre (D)
14.288
mm
Inspection Balls - 19.05x9.525x38.862 mm - Carbon Steel
Material: Carbon Steel    Thread: 10-24 UNC (4.762mm)    Shoulder Diameter: 19.050 mm   
Part Number: BIN-01905-HS
Inspection Balls - 19.05x9.525x38.862 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$384.77 AUD
$461.73 AUD $384.77 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
25.400
mm
+ 0.0 / - 0.0051
(Equiv. 1 in.)
Shank Diameter (B)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Base to Centre (C)
41.656
mm
+/- 0.0051
(Equiv. 1.64 in.)
Shoulder to Centre (D)
17.780
mm
Thread
10-24 UNC (4.762mm)
Shoulder Diameter
25.400
mm
Inspection Balls - 25.4x12.7x41.656 mm - Carbon Steel
Material: Carbon Steel   
Part Number: BIN-02540-HS
Inspection Balls - 25.4x12.7x41.656 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$396.32 AUD
$475.58 AUD $396.32 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Diameter (A)
25.400
mm
+ 0.0 / - 0.0051
(Equiv. 1 in.)
Shank Diameter (B)
12.700
mm
+ 0.0 / - 0.0051
(Equiv. 0.5 in.)
Base to Centre (C)
41.656
mm
+/- 0.0051
(Equiv. 1.64 in.)
Shoulder to Centre (D)
17.780
mm
Inspection Balls - 25.4x12.7x41.656 mm - Carbon Steel
Material: Carbon Steel    Thread: 10-24 UNC (4.762mm)    Shoulder Diameter: 25.400 mm   
Part Number: BIN-02540-HS
Inspection Balls - 25.4x12.7x41.656 mm - Carbon Steel Ball
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
$396.32 AUD
$475.58 AUD $396.32 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.