Pinions for slewing ring gears
Matching pinions for SlewPro and competitor geared slewing rings: 124 designs on file in 2, 3, 4 diametral pitch, with keyed, splined, plain and bolt-on bores and integral pinion shafts. Every pinion is built to order, and we design new pinions to suit your bearing and drive.
- 4140 and 1045 steel, with induction-hardened teeth available
- Full-depth or stub involute teeth to match your bearing gear
- Hub or no-hub, keyed, splined, plain, threaded or face-mounted bores
- 3D models and drawings on request
Find a pinion
| Part number | DP | Teeth | Pitch dia (in) | Face (in) | Hub | Bore type | Bore (in) | Bore detail |
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Don't see the pinion you need? We make pinions in any pitch, tooth count and bore. Send us your requirements.
Engineering guides
Practical articles from our engineers on specifying, installing and maintaining these parts.
Pinions Should Never Be an Afterthought: Matching the Pinion to a Geared Slewing Ring
Why the pinion should be specified with the geared slewing ring, the bore and mounting types to choose from, and what has to match for the g
Read the guide →Buying a Geared Slew Bearing? You're Buying Half a Drive System
Avoid premature wear and backlash issues. Learn why geared slew bearings and pinions should be engineered as one system.
Read the guide →Custom Gears 101: Gear Types, How They Are Made and When Custom Makes Sense
The main gear types and where each is used, how custom gears are manufactured, and when a gear made to your print beats a standard catalog g
Read the guide →Talk to an engineer
Tell us your bearing gear and motor shaft, and we will design or supply the matching pinion.
Not in the catalog? We design to your application, with no engineering charge.