Manufactured by CHG Bearing, the 770RN30 is a precision Single Row Cylindrical Roller Bearings. Key dimensional parameters include a 440 mm bore diameter, a 650 mm outer diameter, and a 157 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.
770RN30 - Single Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 770RN30 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Single Row Cylindrical Roller Bearing |
| Number of Rows | Single Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 440 mm |
| Width (B) | 157 mm |
| Outer Diameter (D) | 650 mm |
| Bore Diameter Tolerance | -0.045 – 0 mm |
| Outside Diameter Tolerance | -0.075 – 0 mm |
| Width Tolerance | -0.45 – 0 mm |
| Enveloping Circle Diameter Fw | 613 mm |
| Inner Ring Chamfer | 5 min mm |
| Outer Ring Chamfer | 5 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 3110 kN |
| Basic Static Load Rating C0 (kN) | 5170 kN |
| Material | |
| Mass (kg) | 174 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
770RN30 650 mm 440 mm 613 mm 157 mm Frequently Asked Questions about 770RN30 Single Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 770RN30 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (440 mm x 650 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Sourcing 770RN30 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 Single Row Cylindrical Roller Bearings.
To match diverse operational dynamics, CHG Bearing supplies 770RN30 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.
The Open Type engineered for 770RN30 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.
