Manufactured by CHG Bearing, the 45T30330D/144 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 150 mm bore diameter, a 320 mm outer diameter, and a 144 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.
45T30330D/144 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 45T30330D/144 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 150 mm |
| Width (B) | 144 mm |
| Outer Diameter (D) | 320 mm |
| Bore Diameter Tolerance | -0.02 – 0 mm |
| Outside Diameter Tolerance | -0.030 – 0 mm |
| Inner Ring Chamfer | 2.5 mm |
| Outer Ring Chamfer | 1 mm |
| Inner Ring Assembly Width Tolerance | -0.20 – 0 mm |
| Outer Ring Assembly Width | 113 mm |
| Outer Ring Assembly Width Tolerance | -0.3 – 0 mm |
| Shaft Abutment Diameter | 137 mm |
| Housing Abutment Diameter | 203 mm |
| Lubrication Hole Diameter | 5 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 731 kN |
| Basic Static Load Rating C0 (kN) | 1190 kN |
| Material | |
| Mass (kg) | 16 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 10 mm |
| Roller Material | Bearing Steel |
45T30330D/144 320 mm 150 mm Frequently Asked Questions about 45T30330D/144 Double 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 45T30330D/144 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.
Yes, 100% of 45T30330D/144 Double Row Tapered 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.
Beyond standard alloy steel, CHG Bearing can customize the 45T30330D/144 Double 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.
To match diverse operational dynamics, CHG Bearing supplies 45T30330D/144 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
