1 – Type of gear support: Bearing or Bushing
Bearing Unit
Series | P15H | P37X | P25X | P20 | P30-P31 | P50-P51 | P75-P76 |
Bearing OD | 1.6 | 2.33 | 1.94 | 1.69 | 1.69 | 1.94 | 2.33 |
Bushing Unit
Series | P315 | P330 | P350 | P365 |
Bushing ID | 0.95 | 1.07 | 1.3 | 1.52 |
Bushing OD | 1 | 1.18 | 1.46 | 1.67 |
Dimensions in inches
2 – Support studs (Bolts or Threaded Rods)
Series | P15H | P37X | P25X | P20 | P30-P31 | P50-P51 | P75-P76 | P315 | P330 | P350 | P365 |
No. Studs | 4 | 8 | 4 | 4 | 4 | 4 | 8 | 4 | 4 | 4 | 4 |
Thread | 1/2-NC | 1/2-NC | 5/8-NC | 9/16-NC | 5/8-NC | 5/8-NC | 5/8-NC | 1/2-NC | 5/8-NC | 5/8-NC | 5/8-NC |
Dimensions in inches
3 – Front Bearing & Retainer
Series | P15H | P37X | P25X | P20 | P30-P31 | P50-P51 | P75-P76 | P315 | P330 | P350 | P365 |
Ball Bearing | YES | NO | NO | YES | YES | YES | YES | YES | YES | YES | YES |
Bearing OD | 2.4 | NO | NO | 2 | 2 | 2.8 | 3.15 | NO | 2 | 2.8 | 3.15 |
Snap Ring | YES | NO | NO | YES | YES | YES | YES | NO | YES | YES | YES |
TapperedĀ Bearing | NO | YES | YES | NO | NO | NO | NO | NO | NO | NO | NO |
BrgĀ Cone OD | NO | 3 | 2.5 | NO | NO | NO | NO | NO | NO | NO | NO |
Threaded Retainer | NO | YES | YES | NO | NO | NO | NO | NO | NO | NO | NO |
Dimensions in inches
4 – Back Cover Dimensions
Series | P15H | P37X | P25X | P20 | P30-P31 | P50-P51 | P75-P76 | P315 | P330 | P350 | P365 |
Dimension-W1 | 3.375 | 5.25 | 4.94 | 4.7 | 4.81 | 4.94 | 6.13 | 4 | 4.8 | 5.75 | 6.25 |
Dimension-W2 | N/A | 7.31 | N/A | N/A | N/A | N/A | N/A | 4.24 | 6.88 | 7.12 | 7.38 |
Dimension-H | 5.25 | 7.31 | 6 | 5 | 5.38 | 6 | 7.88 | 4.31 | 5.38 | 6 | 7 |
Dimensions in inches
5 – Gear Set Dimensions
Series | P15H | P37X | P25X | P20 | P30-P31 | P50-P51 | P75-P76 | P315 | P330 | P350 | P365 |
Number of Teeth | 14 | 12 | 10 | 10 | 10 | 10 | 10 | 12 | 10 | 10 | 9 |
Dimension-D | 2 | 2.79 | 2.39 | 2.1 | 2.1 | 2.39 | 3 | 1.76 | 2.1 | 2.4 | 2.74 |
Dimensions in inches
6 – Bearing Carrier Dimensions
Series | P15H | P37X | P25X | P20 | P30-P31 | P50-P51 | P75-P76 | P315 | P330 | P350 | P365 |
Dimension-W | 2.5 | 3 | 2.88 | 2.5 | 2.5 | 2.88 | 3 | 2.62 | 3.5 | 3.5 | 4 |
Dimensions in inches
7 – Thrust Plate Dimensions
Series | P15H | P37X | P25X | P20 | P30-P31 | P50-P51 | P75-P76 | P315 | P330 | P350 | P365 |
Dimension-W | 0.38 | 0.50 | 0.38 | 0.38 | 0.38 | 0.38 | 0.50 | 0.40 | 0.25 | 0.25 | 0.25 |
Dimensions in inches