Manufactured by CHG Bearing, the 34FC25170/P5 is a precision Four-Row Cylindrical Roller Bearings. Key dimensional parameters include a 170 mm bore diameter, a 250 mm outer diameter, and a 170 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.
34FC25170/P5 - Four-Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 34FC25170/P5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Cylindrical Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 170 mm |
| Width (B) | 170 mm |
| Outer Diameter (D) | 250 mm |
| Bore Diameter Tolerance | -0.013 – 0 mm |
| Outside Diameter Tolerance | -0.015 – 0 mm |
| Width Tolerance | -0.25 – 0 mm |
| Enveloping Circle Diameter Fw | 192 mm |
| Inner Ring Chamfer | 2.1 min mm |
| Outer Ring Chamfer | 2.1 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1210 kN |
| Basic Static Load Rating C0 (kN) | 2320 kN |
| Material | |
| Mass (kg) | 27.8 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 |
34FC25170/P5 250 mm 170 mm 192 mm 170 mm Frequently Asked Questions about 34FC25170/P5 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 34FC25170/P5 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.
Standard batches of CHG Bearing 34FC25170/P5 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.
When fitting 34FC25170/P5 over a 170 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
To extend the trouble-free lifespan of CHG Bearing 34FC25170/P5, 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.
