Adjustable-Pitch V-Belt Pulleys
Increase efficiency, vary speed, and extend the life of your drive by changing the pitch on these pulleys. Turn the sides of the pulley on the threaded hub to increase or decrease the pitch.
For technical drawings and 3-D models, click on a part number.
For 3L,4L, A, AX and 5L, B, BX Belts
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Pitch Dia. (For Belt Trade Size) | Wd. | O'all Wd. | Wd. | Dp. | Material | Body Type | Includes | Each | |
3.15" OD | ||||||||||
1/2" | 1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX) | 21/32"-31/32" | 1 7/8" | __ | __ | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
5/8" | 1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX) | 21/32"-31/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
3/4" | 1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX) | 21/32"-31/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
7/8" | 1.7"-2.5" (3L), 1.9"-2.9" (4L, A, AX), 2.4"-3.2" (5L, B, BX) | 21/32"-31/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
3.75" OD | ||||||||||
1/2" | 2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX) | 21/32"-1 1/32" | 1 7/8" | __ | __ | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
5/8" | 2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX) | 21/32"-1 1/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
3/4" | 2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX) | 21/32"-1 1/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
7/8" | 2.3"-3.1" (3L), 2.4"-3.4" (4L, A, AX), 2.7"-3.7" (5L, B, BX) | 21/32"-1 1/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
1" | 2.7"-3.5" (3L), 2.9"-3.9" (4L, A, AX), 3"-4" (5L, B, BX) | 9/16"-1" | 1 3/4" | 1/4" | 1/8" | Cast Iron | Solid | Two Set Screws | 00000000 | 00000 |
4.15" OD | ||||||||||
1/2" | 2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX) | 21/32"-1 1/32" | 1 7/8" | __ | __ | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
5/8" | 2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX) | 21/32"-1 1/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
3/4" | 2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX) | 21/32"-1 1/32" | 1 7/8" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
7/8" | 2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
1" | 2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 1/4" | 1/8" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
1 1/8" | 2.7"-3.5" (3L), 2.8"-3.8" (4L, A, AX), 3.1"-4.1" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 1/4" | 1/8" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
4.75" OD | ||||||||||
1/2" | 3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX) | 11/16"-1 1/16" | 1 15/16" | __ | __ | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
5/8" | 3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX) | 11/16"-1 1/16" | 1 15/16" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
3/4" | 3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX) | 11/16"-1 1/16" | 1 15/16" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 00000 |
7/8" | 3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
1" | 3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 1/4" | 1/8" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
1 1/8" | 3.3"-4.1" (3L), 3.4"-4.4" (4L, A, AX), 3.7"-4.7" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 1/4" | 1/8" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
5.35" OD | ||||||||||
7/8" | 3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
1" | 3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 1/4" | 1/8" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
1 1/8" | 3.9"-4.7" (3L), 4"-5" (4L, A, AX), 4.3"-5.3" (5L, B, BX) | 3/4"-1 1/8" | 2 5/32" | 1/4" | 1/8" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
For 4L, A, AX and 5L, B, BX Belts
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Pitch Dia. (For Belt Trade Size) | Wd. | O'all Wd. | Wd. | Dp. | Material | Body Type | Includes | Each | |
6.5" OD | ||||||||||
3/4" | 4.7"-5.7" (4L, A, AX), 4.8"-6" (5L, B, BX) | 7/8"-1 1/4" | 2 7/32" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 0000000 |
7/8" | 4.7"-5.7" (4L, A, AX), 4.8"-6" (5L, B, BX) | 7/8"-1 1/4" | 2 7/32" | 3/16" | 3/32" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |
1 1/8" | 4.7"-5.7" (4L, A, AX), 4.8"-6" (5L, B, BX) | 7/8"-1 1/4" | 2 7/32" | 1/4" | 1/8" | Cast Iron | Solid | One Set Screw | 00000000 | 000000 |