2B QD Bushed Pulleys

2B QD Bushed Pulleys

2B series pulleys are manufactured for A, AX, AA, 4L, B, BX, BB, and 5L v-belts and range from 3.75" to 38.35" in diameter. Depending on the pulley size they are made to use with SH, SDS, SK, or SF QD bushings, which we also stock. The majority of our two-groove 2B 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.

2B Style PulleySize Chart


Size
Bushing Type
Pulley Type
Pitch Diameter (5L/B)
Pitch Diameter (4L/ A)
Outside Diameter
(E)
(F)
(L)
(M)
Pulley Weight (LBS)
2B34SH SH E 3.4" 3.0" 3.75" 1-3/32" 1-3/4" 1-5/16" 21/32" 3.2
2B36SH SH D 3.6" 3.2" 3.95" 15/32" 1-3/4" 1-5/16" 29/32" 3.4
2B38SH SH D 3.8" 3.4" 4.15" 15/32" 1-3/4" 1-5/16" 29/32"
3.9
2B40SH SH A 4.0" 3.6" 4.35" 1/32" 1-3/4" 1-5/16" 13/32" 4.1
2B42SH SH A 4.2" 3.8" 4.55" 1/32" 1-3/4" 1-5/16" 13/32" 4.4
2B44SH SH A 4.4" 4.0" 4.75" 1/32" 1-3/4" 1-5/16" 13/32" 4.6
2B46SDS SDS A 4.6" 4.2" 4.95" 1/32" 1-3/4" 1-5/16" 13/32" 5.0
2B48SDS SDS A 4.8" 4.4" 5.15" 1/32" 1-3/4" 1-5/16" 13/32" 5.4
2B50SDS SDS A 5.0" 4.6" 5.35" 1/32" 1-3/4" 1-5/16" 13/32" 6.0
2B52SDS SDS A 5.2" 4.8" 5.55" 1/32" 1-3/4" 1-5/16" 13/32" 6.3
5B54SDS SDS A 5.4" 5.0" 5.75" 1/32" 1-3/4" 1-5/16" 13/32" 6.6
2B56SDS SDS A 5.6" 5.2" 5.95" 1/32" 1-3/4" 1-5/16" 13/32" 6.9
2B58SDS SDS A 5.8" 5.4" 6.15" 1/32" 1-3/4" 1-5/16" 13/32" 7.2
2B60SDS SDS A 6.0" 5.6" 6.35" 1/32" 1-3/4" 1-5/16" 13/32" 7.5
2B62SDS SDS A 6.2" 5.8" 6.55" 1/32" 1-3/4" 1-5/16" 13/32" 7.8
2B64SDS SDS A 6.4" 6.0" 6.75" 1/32" 1-3/4" 1-5/16" 13/32" 8.2
2B66SDS SDS A 6.6" 6.2" 6.95" 1/32" 1-3/4" 1-15/16" 13/32" 8.6
2B68SDS SDS A 6.8" 6.4" 7.15" 1/32" 1-3/4" 1-15/16" 13/32" 9.0
2B70SK SK D 7.0" 6.6" 7.35" 11/32" 1-3/4" 1-15/16" 5/32" 9.3
2B74SK SK D 7.4" 7.0" 7.75" 11/32" 1-3/4" 1-15/16" 5/32" 10.6
2B80SK SK D 8.0" 7.6" 8.35" 11/32" 1-3/4" 1-15/16" 5/32" 11.0
2B86SK SK D 8.6" 8.2" 8.95" 11/32" 1-3/4" 1-15/16" 5/32" 11.6
2B94SK SK D 9.4" 9.0" 9.75" 11/32" 1-3/4" 1-15/16" 5/32" 13.0
2B110SK SK D 11.0" 10.6" 11.35" 11/32" 1-3/4" 1-15/16" 5/32" 14.0
2B124SK SK D 12.4" 12.0" 12.75" 11/32" 1-3/4" 1-15/16" 5/32" 18.0
2B136SK SK D 13.6" 13.2" 13.95" 11/32" 1-3/4" 1-15/16" 5/32" 20.0
2B154SK SK D 15.4" 15.0" 15.75" 11/32" 1-3/4" 1-15/16" 5/32" 23.0
2B160SK SK D 16.0" 15.6" 16.35" 11/32" 1-3/4" 1-15/16" 5/32" 24.0
2B184SK SK D 18.4" 18.0" 18.75" 11/32" 1-3/4" 1-15/16" 5/32" 29.0
2B200SF SF D 20.0" 19.6" 20.35" 15/32" 1-3/4" 2-1/16" 5/32" 33.0
2B250SF SF D 25.0" 24.6" 25.35" 15/32" 1-3/4" 2-1/16" 5/32" 41.0
2B300SF SF D 30.0" 29.6" 30.35" 15/32" 1-3/4" 2-1/16" 5/32" 51.0
2B380SF SF D 38.0" 37.6" 38.35" 15/32" 1-3/4" 2-1/16" 5/32" 64.0