Manufactured by CHG Bearing, the 61821 is a precision Deep Groove Ball Bearings. Key dimensional parameters include a 105 mm bore diameter, a 130 mm outer diameter, and a 13 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
61821 - Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61821 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Type | Open |
| Number of Rows | Single Row |
| Tolerance Class | P5 |
| Load Direction | Radial |
| Dimensions | |
| Bore Diameter (d) | 105 mm |
| Width (B) | 13 mm |
| Outer Diameter (D) | 130 mm |
| Bore Diameter Tolerance | -0.01 – 0 mm |
| Outside Diameter Tolerance | -0.013 – 0 mm |
| Width Tolerance | -0.2 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 20.3 kN |
| Basic Static Load Rating C0 (kN) | 22.7 kN |
| Material | |
| Mass (kg) | 0.324 kg |
| Ring Material | Bearing Steel |
| Cage Material | Grade 10 Steel |
| Ball Material | Bearing Steel |
61821 130 mm 105 mm 13 mm Frequently Asked Questions about 61821 Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 61821 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
As standard production, CHG Bearing subjects 61821 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Engineered according to international ISO boundary plans, CHG Bearing supplies 61821 with a precision bore diameter (d) of 105 mm, an outside diameter (D) of 130 mm, and a nominal ring width (B) of 13 mm. This configuration yields an effective cross-sectional wall thickness of 12.5 mm and an envelope ratio (D/d) of 1.24, delivering compact rigidity for OEM machinery housings.
To ensure optimum performance of CHG Bearing 61821 Deep Groove Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 105 mm bore. For the 130 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
