Manufactured by CHG Bearing, the 28FC21116 is a precision Four-Row Cylindrical Roller Bearings. Key dimensional parameters include a 140 mm bore diameter, a 210 mm outer diameter, and a 116 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.
28FC21116 - Four-Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 28FC21116 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Cylindrical Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 140 mm |
| Width (B) | 116 mm |
| Outer Diameter (D) | 210 mm |
| Bore Diameter Tolerance | -0.025 – 0 mm |
| Outside Diameter Tolerance | -0.030 – 0 mm |
| Width Tolerance | -0.20 – 0 mm |
| Enveloping Circle Diameter Fw | 158 mm |
| Inner Ring Chamfer | 2 min mm |
| Outer Ring Chamfer | 1 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 640 kN |
| Basic Static Load Rating C0 (kN) | 1130 kN |
| Material | |
| Mass (kg) | 13.5 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
| Lubrication Groove Width | 10 mm |
| Lubrication Holes (qty × Ø mm) | 5 × Ø5 |
28FC21116 210 mm 140 mm 158 mm 116 mm Frequently Asked Questions about 28FC21116 Four-Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Standard batches of CHG Bearing 28FC21116 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
The CHG Bearing 28FC21116 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Built for demanding industrial environments, the 28FC21116 Four-Row Cylindrical Roller Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
Quality starts with raw material selection: CHG Bearing crafts 28FC21116 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
