Manufactured by CHG Bearing, the 170RV2503 is a precision Four-Row Cylindrical Roller Bearings. Key dimensional parameters include a 170 mm bore diameter, a 255 mm outer diameter, and a 180 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.

170RV2503 - Four-Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 170RV2503 |
| 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) | 180 mm |
| Outer Diameter (D) | 255 mm |
| Bore Diameter Tolerance | -0.025 – 0 mm |
| Outside Diameter Tolerance | -0.035 – 0 mm |
| Width Tolerance | -0.25 – 0 mm |
| Enveloping Circle Diameter Fw | 193 mm |
| Inner Ring Chamfer | 2.1 min mm |
| Outer Ring Chamfer | 2.1 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1310 kN |
| Basic Static Load Rating C0 (kN) | 2500 kN |
| Material | |
| Mass (kg) | 32.7 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 |
170RV2503 255 mm 170 mm 193 mm 180 mm Frequently Asked Questions about 170RV2503 Four-Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges 170RV2503 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
Sourcing 170RV2503 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 Four-Row Cylindrical Roller Bearings.
For international ocean and air freight, CHG Bearing packs 170RV2503 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.
To extend the trouble-free lifespan of CHG Bearing 170RV2503, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
