Manufactured by CHG Bearing, the 31068X2 is a precision Single Row Tapered Roller Bearings. Key dimensional parameters include a 340 mm bore diameter, a 520 mm outer diameter, and a 86 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.
31068X2 - Single Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 31068X2 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Single Row Tapered Roller Bearing |
| Number of Rows | Single Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 340 mm |
| Width (B) | 86 mm |
| Outer Diameter (D) | 520 mm |
| Outer Ring Width C | 64 mm |
| Bore Diameter Tolerance | -0.030 – 0 mm |
| Outside Diameter Tolerance | -0.038 – 0 mm |
| Inner Ring Chamfer | 4 min mm |
| Outer Ring Chamfer | 4 min mm |
| Shaft Abutment Diameter | 360 mm |
| Housing Abutment Diameter | 486 mm |
| Overall Bearing Width Tolerance | -0.40 – +0.40 mm |
| Inner Ring Width B | 82 mm |
| Inner Ring Width Tolerance | -0.80 – 0 mm |
| Outer Ring Width Tolerance | -0.80 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1200 kN |
| Basic Static Load Rating C0 (kN) | 2050 kN |
| Material | |
| Mass (kg) | 58 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | Grade 10 Steel |
31068X2 520 mm 340 mm 86 mm Frequently Asked Questions about 31068X2 Single Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs 31068X2 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.
Beyond standard alloy steel, CHG Bearing can customize the 31068X2 Single Row Tapered Roller Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Model 31068X2 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 340 mm) and steep thermal gradients between inner and outer rings.
As standard production, CHG Bearing subjects 31068X2 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.
