4B Split Taper Bushed Pulleys
4B 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 with4B Style Pulley Size Chart


|
|
Bushing Type
|
Pitch Diameter (4L/A)
|
Pitch Diameter (5L/B)
|
Outside Diameter
|
Type
|
(O.L.)
|
(L)
|
(P)
|
(C)
|
(H)
|
(F)
|
(G)
|
(X)
|
(E)
|
Pulley Weight (LBS)
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Q1 | 5.0" | 5.4" | 5.75" | 5 | 4-9/32" | 2-1/2" | 3/4" | 1-1/2" | 4-1/8" | 3-1/4" | -- | 1-3/4" | 9/32" | 9.3 | |
| Q1 | 5.2" | 5.6" | 5.95" | 5 | 4-9/32" | 2-1/2" | 3/4" | 1-1/2" | 4-1/8" | 3-1/4" | -- | 1-3/4" | 9/32" | 10.5 | |
| Q1 | 5.4" | 5.8" | 6.15" | 13 | 3-17/32" | 2-1/2" | 0 | 3/4" | 4-1/8" | 3-1/4" | 3/4" | 1-3/4" | 9/32" | 11.5 | |
| Q1 | 5.6" | 6.0" | 6.35" | 13 | 3-17/32" | 2-1/2" | 0 | 3/4" | 4-1/8" | 3-1/4" | 3/4" | 1-3/4" | 9/32" | 12.6 | |
| Q1 | 5.8" | 6.2" | 6.55" | 13 | 3-17/32" | 2-1/2" | 0 | 3/4" | 4-1/8" | 3-1/4" | 3/4" | 1-3/4" | 9/32" | 12.6 | |
| Q1 | 6.0" | 6.4" | 6.75" | 13 | 3-17/32" | 2-1/2" | 0 | 3/4" | 4-1/8" | 3-1/4" | 3/4" | 1-3/4" | 9/32" | 14.1 | |
| Q1 | 6.2" | 6.6" | 6.95" | 13 | 3-17/32" | 2-1/2" | 0 | 3/4" | 4-1/8" | 3-1/4" | 3/4" | 1-3/4" | 9/32" | 14.8 | |
| Q1 | 6.4" | 6.8" | 7.15" | 13 | 3-17/32" | 2-1/2" | 0 | 3/4" | 4-1/8" | 3-1/4" | 3/4" | 1-3/4" | 9/32" | 16.9 | |
| R1 | 15.0" | 15.4" | 15.75" | 13 | 3-25/32" | 2-7/8" | 1/4" | 5/8" | 5-3/8" | 3-1/4" | 7/8" | 2" | 9/32" | 40.1 | |
| R1 | 15.6" | 16.0" | 16.35" | 13 | 3-25/32" | 2-7/8" | 1/4" | 5/8" | 5-3/8" | 3-1/4" | 7/8" | 2" | 9/32" | 44.0 | |
| R1 | 18.0" | 18.0" | 18.75" | 13 | 3-25/32" | 2-7/8" | 1/4" | 5/8" | 5-3/8" | 3-1/4" | 7/8" | 2" | 9/32" | 50.3 | |
| R1 | 19.5" | 20.0" | 20.35" | 13 | 3-25/32" | 2-7/8" | 1/4" | 5/8" | 5-3/8" | 3-1/4" | 7/8" | 2" | 9/32" | 54.0 | |
| R1 | 24.5" | 25.0" | 25.35" | 13 | 3-25/32" | 2-7/8" | 1/4" | 5/8" | 5-3/8" | 3-1/4" | 7/8" | 2" | 9/32" | 71.0 | |
| R1 | 29.5" | 30.0" | 30.35" | 13 | 3-25/32" | 2-7/8" | 1/4" | 5/8" | 5-3/8" | 3-1/4" | 7/8" | 2" | 9/32" | 99.0 | |
| R1 | 37.5" | 38.0" | 38.35" | 13 | 3-25/32" | 2-7/8" | 1/4" | 5/8" | 5-3/8" | 3-1/4" | 7/8" | 2" | 9/32" | 126.0 |