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3B Split Taper Bushed Pulleys

3B series pulleys are manufactured for A, AX, AA, 4L, B, BX, BB, and 5L v-belts and range from 5.75" to 38.35" in diameter. Depending on the pulley size they are made to use with R1 taper bushings or Q1 taper bushings, which we also stock. The majority of our three-groove 3B split taper 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.

3B Style Pulley Size Chart


Size
Bushing Type
Pitch Diameter (A/ 4L)
Pitch Diameter (B/ 5L)
Outside Diameter
Type
(O.L.)
(L)
(P)
(C)
(H)
(F)
(G)
(X)
(E)
Weight (LBS)
3B54Q Q1 5.0" 5.4" 5.75" 5 3-17/32" 2-1/2" 3/4" 3/4" 4-1/8" 2-1/2" -- 1-3/4" 9/32" 7.9
3B56Q Q1 5.2" 5.6" 5.95" 5 3-17/32" 2-1/2" 3/4" 3/4" 4-1/8" 2-1/2" -- 1-3/4" 9/32" 9.0
3B58Q Q1 5.4" 5.8" 6.15" 13 3-5/32" 2-1/2" 3/8" 3/8" 4-1/8" 2-1/2" 3/4" 1-3/4" 9/32" 9.4
3B60Q Q1 5.6" 6.0" 6.35" 13 3-5/32" 2-1/2" 3/8" 3/8" 4-1/8" 2-1/2" 3/4" 1-3/4" 9/32" 10.4
3B62Q Q1 5.8" 6.2" 6.55" 13 3-5/32" 2-1/2" 3/8" 3/8" 4-1/8" 2-1/2" 3/4" 1-3/4" 9/32" 11.3
3B64Q Q1 6.0" 6.4" 6.75" 13 3-5/32" 2-1/2" 3/8" 3/8" 4-1/8" 2-1/2" 3/4" 1-3/4" 9/32" 12.1
3B66Q Q1 6.2" 6.6" 6.95" 13 3-5/32" 2-1/2" 3/8" 3/8" 4-1/8" 2-1/2" 3/4" 1-3/4" 9/32" 13.0
3B68Q Q1 6.4" 6.8" 7.15" 13 3-5/32" 2-1/2" 3/8" 3/8" 4-1/8" 2-1/2" 3/4" 1-3/4" 9/32" 14.3
3B154R R1 15.0" 15.4" 15.75" 13 3-13/32" 2-7/8" 5/8" 1/4" 5-3/8" 2-1/2" 7/8" 2" 9/32" 35.5
3B160R R1 15.6" 16.0" 16.35" 13 3-13/32" 2-7/8" 5/8" 1/4" 5-3/8" 2-1/2" 7/8" 2" 9/32" 38.0
3B184R R1 18.0" 18.4" 18.75" 13 3-13/32" 2-7/8" 5/8" 1/4" 5-3/8" 2-1/2" 7/8" 2" 9/32" 44.8
3B200R R1 19.5" 20.0" 20.35" 13 3-13/32" 2-7/8" 5/8" 1/4" 5-3/8" 2-1/2" 7/8" 2" 9/32" 50.3
3B250R R1 24.5" 25.0" 25.35" 13 3-13/32" 2-7/8" 5/8" 1/4" 5-3/8" 2-1/2" 7/8" 2" 9/32" 65.0
3B300R R1 29.5" 30.0" 30.35" 13 3-13/32" 2-7/8" 5/8" 1/4" 5-3/8" 2-1/2" 7/8" 2" 9/32" 89.0
3B380R R1 37.5" 38.0" 38.35" 13 3-13/32" 2-7/8" 5/8" 1/4" 5-3/8" 2-1/2" 7/8" 2" 9/32" 106.0


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3B154Q Sheave three-groove 3B160Q Sheave three-groove 3B200R Sheave three-groove 3B250R Sheave three-groove
3B300R Sheave three-groove 3B380R Sheave three-groove 3B54Q Sheave three-groove 3B56Q Sheave three-groove
3B58Q Sheave three-groove 3B60Q Sheave three-groove 3B62Q Sheave three-groove 3B64Q Sheave three-groove
3B66Q Sheave three-groove 3B68Q Sheave three-groove 3B184R Sheave three-groove
   
 
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