Part Number | 21212-B |
Brand: BearingMaker | Interchangeable With: Timken |
System of Measurement | Inch |
Roller Bearing Type | Tapered |
Type | Cups |
Cups Type | Flanged |
Series | 21000 |
Outer Dia | 2.125″ |
Outer Dia Tolerance | +0.001″ to 0 |
Cup Width | 0.625″ |
Cup Width Tolerance | +0.002″ to -0.01 |
Flange Outer Diameter(D1) | 2.2772″ |
Cup Flange Width(C1) | 0.1562″ |
Cup Backface ToClear Radius | 0.09″ |
Cup Frontface Backing Diameter | 2.07″ |
Ring Material | Chrome Steel |
Temperature Range | -30° to 110 °C |
ABEC Rating | ABEC-1 |
RoHS | Compliant |
REACH | Compliant |

21212-B
Design Features of 21212-B Bearing
21212-B features an extended lip that helps secure the bearing in place and prevent lateral movement, and it is designed with imperial dimensions for compatibility with other imperial-sized components. 21212-B outer dia is 2.125″. Its cup width is 0.625″. It is manufactured to high tolerances from durable materials, often including lubrication provisions to enhance performance and longevity.
What Benefits Can 21212-B Bearing Provide?
- Secure Positioning: The flanged design helps keep the bearing securely in place, preventing lateral movement and enhancing stability during operation.
- Effective Load Support: Its cylindrical shape allows for efficient support and alignment with tapered rollers, ensuring stable load handling.
- High Precision: Manufactured to tight tolerances, it ensures accurate performance in applications requiring precise movement and positioning.
- Durability: Made from high-quality materials, a single flanged cup is resistant to wear and tear, providing long-lasting performance in demanding environments.
- Reduced Friction: A smooth surface finish minimizes friction, enhancing the overall efficiency of the bearing system.
What Can 21212-B Bearing Be Used for?
- Automotive: Utilized in wheel bearings, transmissions, and differentials to support smooth operation and effective load handling.
- Industrial Machinery: Found in gearboxes, conveyor systems, and pumps, ensuring reliable performance in demanding environments.
- Agricultural Equipment: Used in tractors and other farming machinery where durability and efficient load support are essential.
- Construction Equipment: Employed in heavy machinery such as excavators and bulldozers, providing stability and support under heavy loads.
- Marine Applications: Used in boat trailers and marine equipment where resistance to corrosion and wear is crucial.