Collection: Pulleys - U Groove Idler - Single Row - Plastic With Plain Bore

Pulleys -> U Groove Idler -> Single Row -> Plastic With Plain Bore

There are 6 products in the sub-categories of Pulleys - U Groove Idler - Single Row - Plastic With Plain Bore. Browse the Pulleys - U Groove Idler - Single Row - Plastic With Plain Bore products table.

This product group is not included in our range. Try the full range at Minibearings instead.

Category Details

A selection of Plastic With Plain Bore Single Row U Groove Idler Pulleys. Plastic and Steel with Steel Ball Bearings or Plain Bearings.

  • Use with round belts such as Rounthane or O-Rings

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Pulleys - U Groove Idler - Single Row - Plastic With Plain Bore category on the Small Parts & Bearings online store.
Maximum Cable Diameter (H) Outside Diameter (OD) Bore (B) Body Width Overall Width (OAL) Dia. to Base of Groove (P) Indicative
Image
Maximum Cable Diameter (H)
1.19
mm
+/- 0.127
(Equiv. 0.047 in.)
Outside Diameter (OD)
12.70
mm

(Equiv. 0.5 in.)
Bore (B)
3.251
mm

(Equiv. 0.128 in.)
Overall Width (OAL)
3.175
Dia. to Base of Groove (P)
11.05
mm
U Groove Idler Pulleys - 1.19x12.7x3.251 mm - Acetal - Black
Material: Acetal - Black    Type: Plain Bearing - Light Duty    Groove Radius (R): 0.64   
Part Number: PUI012-0127-033-A (100 Pcs)
U Groove Idler Pulleys - 1.19x12.7x3.251 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $814.05 AUD
Regular price Sale price $814.05 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H) Outside Diameter (OD) Bore (B) Body Width Indicative
Image
Maximum Cable Diameter (H)
1.19
mm
+/- 0.127
(Equiv. 0.047 in.)
Outside Diameter (OD)
12.70
mm

(Equiv. 0.5 in.)
Bore (B)
3.251
mm

(Equiv. 0.128 in.)
U Groove Idler Pulleys - 1.19x12.7x3.251 mm - Acetal - Black
Material: Acetal - Black    Overall Width (OAL): 3.175    Dia. to Base of Groove (P): 11.05 mm    Type: Plain Bearing - Light Duty    Groove Radius (R): 0.64   
Part Number: PUI012-0127-033-A (100 Pcs)
U Groove Idler Pulleys - 1.19x12.7x3.251 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $814.05 AUD
Regular price Sale price $814.05 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
1.19
mm
+/- 0.127
(Equiv. 0.047 in.)
Outside Diameter (OD)
19.05
mm

(Equiv. 0.75 in.)
Bore (B)
3.251
mm

(Equiv. 0.128 in.)
Overall Width (OAL)
3.962
Dia. to Base of Groove (P)
15.88
mm
U Groove Idler Pulleys - 1.19x19.05x3.251 mm - Acetal - Black
Material: Acetal - Black    Type: Plain Bearing - Light Duty    Groove Radius (R): 0.64   
Part Number: PUI012-0191-033-A (100 Pcs)
U Groove Idler Pulleys - 1.19x19.05x3.251 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $440.59 AUD
Regular price Sale price $440.59 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
1.19
mm
+/- 0.127
(Equiv. 0.047 in.)
Outside Diameter (OD)
19.05
mm

(Equiv. 0.75 in.)
Bore (B)
3.251
mm

(Equiv. 0.128 in.)
U Groove Idler Pulleys - 1.19x19.05x3.251 mm - Acetal - Black
Material: Acetal - Black    Overall Width (OAL): 3.962    Dia. to Base of Groove (P): 15.88 mm    Type: Plain Bearing - Light Duty    Groove Radius (R): 0.64   
Part Number: PUI012-0191-033-A (100 Pcs)
U Groove Idler Pulleys - 1.19x19.05x3.251 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $440.59 AUD
Regular price Sale price $440.59 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
1.60
mm
+/- 0.127
(Equiv. 0.063 in.)
Outside Diameter (OD)
31.75
mm

(Equiv. 1.25 in.)
Bore (B)
4.826
mm

(Equiv. 0.19 in.)
Overall Width (OAL)
5.563
Dia. to Base of Groove (P)
27.00
mm
U Groove Idler Pulleys - 1.6x31.75x4.826 mm - Acetal - Black
Material: Acetal - Black    Type: Plain Bearing - Light Duty    Groove Radius (R): 0.89   
Part Number: PUI016-0318-048-A (100 Pcs)
U Groove Idler Pulleys - 1.6x31.75x4.826 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $485.23 AUD
Regular price Sale price $485.23 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
1.60
mm
+/- 0.127
(Equiv. 0.063 in.)
Outside Diameter (OD)
31.75
mm

(Equiv. 1.25 in.)
Bore (B)
4.826
mm

(Equiv. 0.19 in.)
U Groove Idler Pulleys - 1.6x31.75x4.826 mm - Acetal - Black
Material: Acetal - Black    Overall Width (OAL): 5.563    Dia. to Base of Groove (P): 27.00 mm    Type: Plain Bearing - Light Duty    Groove Radius (R): 0.89   
Part Number: PUI016-0318-048-A (100 Pcs)
U Groove Idler Pulleys - 1.6x31.75x4.826 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $485.23 AUD
Regular price Sale price $485.23 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
2.39
mm
+/- 0.127
(Equiv. 0.094 in.)
Outside Diameter (OD)
38.10
mm

(Equiv. 1.5 in.)
Bore (B)
6.452
mm

(Equiv. 0.254 in.)
Overall Width (OAL)
7.137
Dia. to Base of Groove (P)
31.75
mm
U Groove Idler Pulleys - 2.39x38.1x6.452 mm - Acetal - Black
Material: Acetal - Black    Type: Plain Bearing - Light Duty    Groove Radius (R): 1.17   
Part Number: PUI024-0381-065-A (100 Pcs)
U Groove Idler Pulleys - 2.39x38.1x6.452 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $663.59 AUD
Regular price Sale price $663.59 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
2.39
mm
+/- 0.127
(Equiv. 0.094 in.)
Outside Diameter (OD)
38.10
mm

(Equiv. 1.5 in.)
Bore (B)
6.452
mm

(Equiv. 0.254 in.)
U Groove Idler Pulleys - 2.39x38.1x6.452 mm - Acetal - Black
Material: Acetal - Black    Overall Width (OAL): 7.137    Dia. to Base of Groove (P): 31.75 mm    Type: Plain Bearing - Light Duty    Groove Radius (R): 1.17   
Part Number: PUI024-0381-065-A (100 Pcs)
U Groove Idler Pulleys - 2.39x38.1x6.452 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $663.59 AUD
Regular price Sale price $663.59 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
3.18
mm
+/- 0.127
(Equiv. 0.125 in.)
Outside Diameter (OD)
44.45
mm

(Equiv. 1.75 in.)
Bore (B)
6.452
mm

(Equiv. 0.254 in.)
Overall Width (OAL)
7.137
Dia. to Base of Groove (P)
34.93
mm
U Groove Idler Pulleys - 3.18x44.45x6.452 mm - Acetal - Black
Material: Acetal - Black    Type: Plain Bearing - Light Duty    Groove Radius (R): 1.68   
Part Number: PUI032-0445-065-A (100 Pcs)
U Groove Idler Pulleys - 3.18x44.45x6.452 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $758.86 AUD
Regular price Sale price $758.86 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
3.18
mm
+/- 0.127
(Equiv. 0.125 in.)
Outside Diameter (OD)
44.45
mm

(Equiv. 1.75 in.)
Bore (B)
6.452
mm

(Equiv. 0.254 in.)
U Groove Idler Pulleys - 3.18x44.45x6.452 mm - Acetal - Black
Material: Acetal - Black    Overall Width (OAL): 7.137    Dia. to Base of Groove (P): 34.93 mm    Type: Plain Bearing - Light Duty    Groove Radius (R): 1.68   
Part Number: PUI032-0445-065-A (100 Pcs)
U Groove Idler Pulleys - 3.18x44.45x6.452 mm Single Row - Acetal - Black Pulley
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 06, 2025
Regular price $758.86 AUD
Regular price Sale price $758.86 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Maximum Cable Diameter (H)
4.78
mm
+/- 0.127
(Equiv. 0.188 in.)
Outside Diameter (OD)
40.00
mm

(Equiv. 1.575 in.)
Bore (B)
6.553
mm

(Equiv. 0.258 in.)
Overall Width (OAL)
8.382
Dia. to Base of Groove (P)
31.12
mm
U Groove Idler Pulleys - 4.78x40x6.553 mm - Acetal - Black
Material: Acetal - Black    Type: Plain Bearing - Light Duty    Groove Radius (R): 2.41   
Part Number: PUI048-0400-066-A
U Groove Idler Pulleys - 4.78x40x6.553 mm Single Row - Acetal - Black Pulley
Contact Us | Special Order Only - Please contact us if you need a large quantity
Maximum Cable Diameter (H)
4.78
mm
+/- 0.127
(Equiv. 0.188 in.)
Outside Diameter (OD)
40.00
mm

(Equiv. 1.575 in.)
Bore (B)
6.553
mm

(Equiv. 0.258 in.)
U Groove Idler Pulleys - 4.78x40x6.553 mm - Acetal - Black
Material: Acetal - Black    Overall Width (OAL): 8.382    Dia. to Base of Groove (P): 31.12 mm    Type: Plain Bearing - Light Duty    Groove Radius (R): 2.41   
Part Number: PUI048-0400-066-A
U Groove Idler Pulleys - 4.78x40x6.553 mm Single Row - Acetal - Black Pulley
Contact Us | Special Order Only - Please contact us if you need a large quantity | Orders can be expected around Thu, Jun 08, 2028