Manufactured by CHG Bearing, the 131.45.2800.12K 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.
131.45.2800.12K - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 131.45.2800.12K |
| 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) | 3804 kg |
131.45.2800.12K 3021 mm 2579 mm 3735 mm 3441 mm 231 mm Frequently Asked Questions about 131.45.2800.12K Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 131.45.2800.12K against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (2579 mm x 3021 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Absolutely. The CHG Bearing 131.45.2800.12K Three-row Cylindrical Roller Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 131.45.2800.12K, FAG 131.45.2800.12K, NSK 131.45.2800.12K. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 131.45.2800.12K, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
For international ocean and air freight, CHG Bearing packs 131.45.2800.12K 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.
