Manufactured by CHG Bearing, the 618/850MA is a precision Deep Groove Ball Bearings. Key dimensional parameters include a 850 mm bore diameter, a 1030 mm outer diameter, and a 82 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.
618/850MA - Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 618/850MA |
| 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) | 850 mm |
| Width (B) | 82 mm |
| Outer Diameter (D) | 1030 mm |
| Bore Diameter Tolerance | -0.05 – 0 mm |
| Outside Diameter Tolerance | -0.05 – 0 mm |
| Width Tolerance | -1 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 620 kN |
| Basic Static Load Rating C0 (kN) | 1460 kN |
| Material | |
| Mass (kg) | 145 kg |
| Ring Material | Bearing Steel |
| Cage Material | Brass |
| Ball Material | Bearing Steel |
618/850MA 1030 mm 850 mm 82 mm Frequently Asked Questions about 618/850MA Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects 618/850MA 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.
Model 618/850MA 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 850 mm) and steep thermal gradients between inner and outer rings.
For international ocean and air freight, CHG Bearing packs 618/850MA with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Yes, 100% of 618/850MA Deep Groove Ball Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
