Manufactured by CHG Bearing, the BC4B 635122 is a precision Four-Row Cylindrical Roller Bearings. Key dimensional parameters include a 170 mm bore diameter, a 240 mm outer diameter, and a 130 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.

BC4B 635122 - Four-Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | BC4B 635122 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Cylindrical Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 170 mm |
| Width (B) | 130 mm |
| Outer Diameter (D) | 240 mm |
| Bore Diameter Tolerance | -0.025 – 0 mm |
| Outside Diameter Tolerance | -0.030 – 0 mm |
| Width Tolerance | -0.30 – 0 mm |
| Enveloping Circle Diameter Fw | 190 mm |
| Inner Ring Chamfer | 2 min mm |
| Outer Ring Chamfer | 2 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 913 kN |
| Basic Static Load Rating C0 (kN) | 1830 kN |
| Material | |
| Mass (kg) | 18.9 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
| Lubrication Groove Width | 9.5 mm |
| Lubrication Holes (qty × Ø mm) | 4 × Ø5 |
BC4B 635122 240 mm 170 mm 190 mm 130 mm Frequently Asked Questions about BC4B 635122 Four-Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of BC4B 635122 Four-Row Cylindrical Roller 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.
As standard production, CHG Bearing subjects BC4B 635122 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.
Every production batch of CHG Bearing BC4B 635122 Four-Row Cylindrical Roller 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.
Absolutely. The CHG Bearing BC4B 635122 Four-Row Cylindrical Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF BC4B 635122, FAG BC4B 635122, NSK BC4B 635122. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
