Manufactured by CHG Bearing, the 112.80.3200.12K1 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.
112.80.3200.12K1 - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 112.80.3200.12K1 |
| 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 | ZG1/4 |
| 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 |
112.80.3200.12K1 3470 mm 2930 mm 210 mm 3380 mm 3020 mm Frequently Asked Questions about 112.80.3200.12K1 Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Built for demanding industrial environments, the 112.80.3200.12K1 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.
In its sealed configuration (Open Type), CHG Bearing pre-charges 112.80.3200.12K1 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.
Model 112.80.3200.12K1 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 2930 mm) and steep thermal gradients between inner and outer rings.
For international ocean and air freight, CHG Bearing packs 112.80.3200.12K1 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.
