Manufactured by CHG Bearing, the MJ3 1/4 is a precision Deep Groove Ball Bearings. Key dimensional parameters include a 82.55 mm bore diameter, a 190.55 mm outer diameter, and a 39.69 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.

MJ3 1/4 - Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | MJ3 1/4 |
| 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) | 82.55 mm |
| Width (B) | 39.69 mm |
| Outer Diameter (D) | 190.55 mm |
| Bore Diameter Tolerance | -0.01 – 0 mm |
| Outside Diameter Tolerance | -0.015 – 0 mm |
| Width Tolerance | -0.2 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 114 kN |
| Basic Static Load Rating C0 (kN) | 82.9 kN |
| Material | |
| Mass (kg) | 6.37 kg |
| Ring Material | Bearing Steel |
| Cage Material | Brass |
| Ball Material | Bearing Steel |
MJ3 1/4 190.55 mm 82.55 mm 39.69 mm Frequently Asked Questions about MJ3 1/4 Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Every production batch of CHG Bearing MJ3 1/4 Deep Groove Ball Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for MJ3 1/4, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Model MJ3 1/4 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 82.55 mm) and steep thermal gradients between inner and outer rings.
The Open engineered for MJ3 1/4 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
