Philadelphia Gear

Parts Quote

For a replacement part quote for Philadelphia Gear brand Original Equipment Parts please enter the model number in the box below to see a baloon drawing of your gearbox. If a drawing does not appear, or if you are interested in other proprietary Philadelphia Gear brands, which include Western Gear and WesTech Gear please click here to fill out an online quote request.

A Philadelphia Gear Renewal Parts Specialist will contact you to help proceed with our inquiry.


Model blueprint
Model Notes:
Worm sets of 63/4 centers (Number 675) and larger have two piece worm gears whether first or second set. Smaller than 63/4 use solid worm gear.

Part # Name # Req‑d  
1 Upper Half Housing
2 Lower Half Housing
3 Worm Gear Spider
4 Worm Gear 2nd W.S.
5 Bearing Cartridge 2nd W.S.
6 Bearing Cartridge 1st W.S.
7 Bearing Cap (Blind) 2nd W.S.
8 Bearing Cap (Blind) 1st W.S.
9 Bearing Plug (Blind) 2nd W.S.
10 Bearing Plug (Thru) 1st W.S.
11 Blind Baffle 1st W.S.
12 Bearing Plug (Blind) G.S.
13 Bearing Plug (Thru) G.S.
14 First Worm Shaft
15 Second Worm Shaft
16 Gear Shaft
17 Spacer 2nd W.S.
18 Thru Baffle 1st W.S.
19 Oil Seal 1st W.S.
20 Locknut Assembly 1st W.S.
21 Locknut Assembly 2nd W.S.
22 Spacer G.S.
23 Oil Chute
24 Oil Seal G.S.
25 Bearing G.S.
26 Bearing 2nd W.S.
27 Bearing 2nd W.S.
28 Bearing 1st W.S.
29 Bearing 1st W.S.
30 Worm Gear Rim

Enter the Size/Type or Model No. found
on nameplate, or click GO to view all lists.

Depending on the size and specifications of your machinery, gearbox repairs can vary considerably. While some need replacement bearings, others may require a complete overhaul of the lubrication system. At Philadelphia Gear, we have experience in comprehensive and effective gearbox repair dating back to 1892 and we know what it takes to save you time and money over a new replacement. Not to mention our RapidGear® Emergency Repair Service provides a value add for customers that cannot afford equipment breakdowns or operation downtime. For a complete list of our products and services, contact Philadelphia Gear directly at 1-800-766-5120.

Learn More about Gearbox Repair