Manufactured by CHG Bearing, the 61940MB is a precision Deep Groove Ball Bearings. Key dimensional parameters include a 200 mm bore diameter, a 280 mm outer diameter, and a 38 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.
61940MB - Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 61940MB |
| 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) | 200 mm |
| Width (B) | 38 mm |
| Outer Diameter (D) | 280 mm |
| Bore Diameter Tolerance | -0.015 – 0 mm |
| Outside Diameter Tolerance | -0.018 – 0 mm |
| Width Tolerance | -0.3 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 149 kN |
| Basic Static Load Rating C0 (kN) | 167 kN |
| Material | |
| Mass (kg) | 7.21 kg |
| Ring Material | Bearing Steel |
| Cage Material | Brass |
| Ball Material | Bearing Steel |
61940MB 280 mm 200 mm 38 mm Frequently Asked Questions about 61940MB Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing 61940MB Deep Groove Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 200 mm bore. For the 280 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Each 61940MB produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (200 mm bore side) ensures perfect planar contact without edge binding.
To match diverse operational dynamics, CHG Bearing supplies 61940MB 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.
When fitting 61940MB over a 200 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
