Manufactured by CHG Bearing, the 133.45.2800.03 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2579 mm bore diameter, a 3021 mm outer diameter, and a 231 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.
133.45.2800.03 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 133.45.2800.03 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2579 mm |
| Width (B) | 231 mm |
| Outer Diameter (D) | 3021 mm |
| Inner/Outer Ring Height H1 | 180 mm |
| End-face Height Difference h | 32 mm |
| Number of Lubrication Holes n1 | 10 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3735 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3441 mm |
| Lubrication Port Thread / Size Φ1 | G1/4 |
| Inner Ring Mounting Hole Count n2 | 108 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 33 |
| Outer Ring Mounting Hole Count n3 | 108 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 33 |
| Gear Data | |
| Gear Module m | 24 mm |
| Gear Tip Diameter De | 3931.2 mm |
| Number of Gear Teeth z | 161 |
| Gear Face Width b | 170 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 3805 kg |
133.45.2800.03 3021 mm 2579 mm 3735 mm 3441 mm 231 mm Frequently Asked Questions about 133.45.2800.03 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing 133.45.2800.03 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 Three-row Cylindrical Roller Slewing Bearings.
To match diverse operational dynamics, CHG Bearing supplies 133.45.2800.03 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.
Absolutely. The CHG Bearing 133.45.2800.03 Three-row Cylindrical Roller Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 133.45.2800.03, FAG 133.45.2800.03, NSK 133.45.2800.03. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
In its sealed configuration (Open Type), CHG Bearing pre-charges 133.45.2800.03 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.
