Manufactured by CHG Bearing, the 112.80.3200.12K is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 2930 mm bore diameter, a 3470 mm outer diameter, and a 210 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.
112.80.3200.12K - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 112.80.3200.12K |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 2930 mm |
| Width (B) | 210 mm |
| Outer Diameter (D) | 3470 mm |
| Inner/Outer Ring Height H1 | 190 mm |
| End-face Height Difference h | 20 mm |
| Number of Lubrication Holes n1 | 8 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3380 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3020 mm |
| Lubrication Port Thread / Size Φ1 | 6 |
| Inner Ring Mounting Hole Count n2 | 48 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 37 |
| Outer Ring Mounting Hole Count n3 | 48 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 37 |
| Gear Data | |
| Gear Module m | 25 mm |
| Gear Tip Diameter De | 3600 mm |
| Number of Gear Teeth z | 142 |
| Gear Face Width b | 180 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 4279 kg |
112.80.3200.12K 3470 mm 2930 mm 210 mm 3380 mm 3020 mm Frequently Asked Questions about 112.80.3200.12K Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Beyond standard alloy steel, CHG Bearing can customize the 112.80.3200.12K Crossed Roller Slewing 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 ensure optimum performance of CHG Bearing 112.80.3200.12K Crossed Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 2930 mm bore. For the 3470 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Built for demanding industrial environments, the 112.80.3200.12K Crossed Roller Slewing 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.
To extend the trouble-free lifespan of CHG Bearing 112.80.3200.12K, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
