Manufactured by CHG Bearing, the NN49/630K/W33 is a precision Double Row Cylindrical Roller Bearings. Key dimensional parameters include a 630 mm bore diameter, a 850 mm outer diameter, and a 218 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.
NN49/630K/W33 - Double Row Cylindrical Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | NN49/630K/W33 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 630 mm |
| Width (B) | 218 mm |
| Outer Diameter (D) | 850 mm |
| Bore Diameter Tolerance | 0 – +0.05 mm |
| Outside Diameter Tolerance | -0.10 – 0 mm |
| Width Tolerance | -0.50 – 0 mm |
| Enveloping Circle Diameter Fw | 798 mm |
| Inner Ring Chamfer | 6 min mm |
| Outer Ring Chamfer | 6 min mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 4300 kN |
| Basic Static Load Rating C0 (kN) | 10300 kN |
| Material | |
| Mass (kg) | 347 kg |
| Ring Material | Bearing Steel |
| Rolling Element Material | Bearing Steel |
| Cage Material | Brass |
| Lubrication Groove Width | 18 mm |
| Lubrication Holes (qty × Ø mm) | 3 × Ø10 |
NN49/630K/W33 850 mm 630 mm 218 mm 798 mm Frequently Asked Questions about NN49/630K/W33 Double Row Cylindrical Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs NN49/630K/W33 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.
Built for demanding industrial environments, the NN49/630K/W33 Double 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.
Yes, 100% of NN49/630K/W33 Double Row Cylindrical Roller Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for NN49/630K/W33. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
