Manufactured by CHG Bearing, the 61921 is a precision Deep Groove Ball Bearings. Key dimensional parameters include a 105 mm bore diameter, a 145 mm outer diameter, and a 20 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.

61921 - Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61921 |
| 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) | 20 mm |
| Outer Diameter (D) | 145 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) | 42.4 kN |
| Basic Static Load Rating C0 (kN) | 42 kN |
| Material | |
| Mass (kg) | 0.811 kg |
| Ring Material | Bearing Steel |
| Cage Material | Grade 10 Steel |
| Ball Material | Bearing Steel |
61921 145 mm 105 mm 20 mm Frequently Asked Questions about 61921 Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Beyond standard alloy steel, CHG Bearing can customize the 61921 Deep Groove Ball Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
To match diverse operational dynamics, CHG Bearing supplies 61921 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Sourcing 61921 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Deep Groove Ball Bearings.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 61921. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
