Description
The 7202 angular contact bearing is a 15 x 35 x 11 mm bearing made from AISI 52100 bearing steel, also known as GCR15 or 100Cr6. It’s heat hardened to Rc 59–64 before final grinding and polishing, which gives it excellent wear resistance and a long service life. It’s built for applications that put both radial and axial loads on the shaft, where a standard ball bearing just isn’t enough.
7202 Angular Contact Bearing Specifications
- Bore (ID): 15 mm (0.591″)
- Outside diameter (OD): 35 mm (1.378″)
- Width: 11 mm (0.433″)
- Series: 72 (light series)
- Material: AISI 52100 bearing steel (GCR15 / 100Cr6)
- Hardness: Rc 59–64
- Type: Single row angular contact ball bearing
Why AISI 52100 Bearing Steel Matters
AISI 52100 is one of the most widely trusted materials in the bearing industry. It’s a high-carbon chrome steel that becomes very hard and tough after heat treatment. Hardening it to Rc 59–64 before final grinding gives the raceways and balls a durable, wear-resistant surface that holds its shape under heavy, repeated loading. The final grinding and polishing then give the bearing a smooth finish, which reduces friction and helps it run quietly and efficiently.
How a 7202 Angular Contact Bearing Works
Unlike a deep groove bearing, the 7202 angular contact bearing has raceways that are offset from each other. Load passes through the balls at an angle, so the bearing can handle thrust along the shaft as well as radial force across it. This makes it well suited to equipment where the shaft is pushed or pulled during operation, including:
- Pumps and compressors
- Gearboxes and power transmissions
- Machine tool spindles
- Electric motors with axial loading
- Industrial and agricultural machinery
Installing Your 7202 Bearing Correctly
Angular contact bearings support axial load in one direction only, so orientation is critical. Make sure the bearing faces the right way before installation, because fitting it backwards can lead to early failure. When thrust acts in both directions, these bearings are typically mounted as a matched pair. During installation, apply pressure only to the ring being fitted: the outer ring for a housing, the inner ring for a shaft. Never strike the bearing directly or pass force through the balls.
Keeping Your Bearing in Top Condition
Proper lubrication and a clean operating environment are the biggest factors in bearing life. Use the grease or oil your equipment specifies, keep contaminants out, and watch for warning signs like unusual noise, vibration, or heat. Replacing a 7202 angular contact bearing at the first sign of wear helps prevent damage to shafts, housings, and other components.
7202 Angular Contact Bearing FAQ
What’s the difference between a 7202 and a 6202 bearing?
They share the same 15 x 35 x 11 mm size, but the 6202 is a deep groove bearing designed mainly for radial loads. The 7202 is built to handle significant axial loads as well.
Is AISI 52100 steel corrosion resistant?
No. AISI 52100 offers excellent hardness and wear resistance but isn’t stainless, so keep it lubricated and protected from moisture.
Where Can I Find More Angular Contact Bearings?
Explore our complete range of [Angular Contact Bearings](INSERT CATEGORY URL) for more sizes and series, all in stock and shipping nationwide. For help finding the right bearing, call us at (+1) 978-254-3987.


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