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1B QD Bushed Pulleys

1B series pulleys are manufactured for A, AX, AA, 4L, B, BX, BB, and 5L v-belts and range from 3.75" to 20.35" in diameter. Depending on the pulley size they are made to use with SH, SDS, or SK QD bushings, which we also stock. The majority of our single-groove 1B QD bushed pulleys are manufactured from a high-strength grade 35 cast iron, are phosphate-coated and painted for anti-corrosion, and all of them are balanced at the factory for smooth machinery operation. The main benefit of using a QD (quick detachable) pulley is that if the bushing (hub) breaks you don't have to replace the whole assembly, or if just the pulley gets warn out you the same principle applies. The other big benefit is that there is a wider range of bore options with QD pulleys than "fixed-bore" style.

1B Style Pulley Size Chart


Size
Bushing Type
Type
Pitch Diameter (4L/A)
Pitch Diameter (5L/B)
Outside Diameter
(E)
(F)
(L)
(M)
Pulley Weight (LBS)
1B34SH SH E 3.0" 3.4" 3.75" 7/32" 7/8" 1-5/16" 21/32" 2.0
1B36SH SH D 3.2" 3.6" 3.95" 19/32" 7/8" 1-5/16" 5/32" 2.2
1B38SH SH D 3.4" 3.8" 4.15" 19/32" 7/8" 1-5/16" 5/32" 2.4
1B40SH SH C 3.6" 4.0" 4.35" 11/32" 7/8" 1-5/16" 3/32" 2.7
1B42SH SH C 3.8" 4.2" 4.55" 11/32" 7/8" 1-5/16" 3/32" 2.9
1B44SH SH C 4.0" 4.4" 4.75" 11/32" 7/8" 1-5/16" 3/32" 3.4
1B46SDS SDS C 4.2" 4.6" 4.95" 11/32" 7/8" 1-5/16" 3/32" 4.0
1B48SDS SDS C 4.4" 4.8" 5.15" 11/32" 7/8" 1-5/16" 3/32" 4.3
1B50SDS SDS C 4.6" 5.0" 5.35" 11/32" 7/8" 1-5/16" 3/32" 4.7
1B52SDS SDS C 4.8" 5.2" 5.55" 11/32" 7/8" 1-5/16" 3/32" 5.0
1B54SDS SDS C 5.0"
5.4" 5.75" 11/32" 7/8" 1-5/16" 3/32" 5.3
1B56SDS SDS C 5.2"
5.6" 5.95" 11/32" 7/8" 1-5/16" 3/32" 5.6
1B58SDS SDS C 5.4" 5.8" 6.15" 11/32" 7/8" 1-5/16" 3/32" 5.9
1B60SDS SDS C 5.6" 6.0" 6.35" 11/32" 7/8" 1-5/16" 3/32" 6.2
1B62SDS SDS C 5.8" 6.2" 6.55" 11/32" 7/8" 1-5/16" 3/32" 6.5
1B64SDS SDS C 6.0" 6.4" 6.75" 11/32" 7/8" 1-5/16" 3/32" 6.8
1B66SDS SDS C 6.2" 6.6" 6.95" 11/32" 7/8" 1-5/16" 3/32" 7.2
1B68SDS SDS C 6.4" 6.8" 7.15" 11/32" 7/8" 1-5/16" 3/32" 7.5
1B70SDS SDS C 6.6" 7.0" 7.35" 11/32" 7/8" 1-5/16" 3/32" 7.8
1B74SDS SDS D 7.0" 7.4" 7.75" 17/32" 1" 1-5/16" 7/32" 8.8
1B80SDS SDS D 7.6" 8.0" 8.35" 17/32" 1" 1-5/16" 7/32" 9.6
1B86SDS SDS D 8.2" 8.6" 8.95" 17/32" 1" 1-5/16" 7/32" 10.0
1B94SDS SDS D 9.0" 9.4" 9.75" 17/32" 1" 1-5/16" 7/32" 10.5
1B110SDS SDS D 10.6" 11.0" 11.35" 17/32" 1" 1-5/16" 7/32" 11.0
1B124SDS SDS D 12.0" 12.4" 12.75" 17/32" 1" 1-5/16" 7/32" 12.0
1B136SDS SDS D 13.2" 13.6" 13.95" 17/32" 1" 1-5/16" 7/32" 14.0
1B154SK SK C 15.0" 15.4" 15.75" 21/32" 1" 1-15/16" 9/32" 16.0
1B160SK SK C 15.6" 16.0" 16.35" 21/32" 1" 1-15/16" 9/32" 16.6
1B184SK SK C 18.0" 18.4" 18.75" 21/32" 1" 1-15/16" 9/32" 18.0
1B200SK SK C 19.6" 20.0" 20.35" 21/32" 1" 1-15/16" 9/32" 20.0


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1B34SH Sheave single-groove 1B36SH Sheave single-groove 1B38SH Sheave single-groove 1B40SH Sheave single-groove
1B42SH Sheave single-groove 1B44SH Sheave single-groove 1B46SDS Sheave single-groove 1B48SDS Sheave single-groove
1B50SDS Sheave single-groove 1B52SDS Sheave single-groove 1B54SDS Sheave single-groove 1B56SDS Sheave single-groove
1B58SDS Sheave single-groove 1B60SDS Sheave single-groove 1B62SDS Sheave single-groove 1B64SDS Sheave single-groove
   
 
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