Manufactured by CHG Bearing, the 112.50.4500.12K is a precision Crossed Roller Slewing Bearings. Key dimensional parameters include a 4272 mm bore diameter, a 4726 mm outer diameter, and a 174 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.
112.50.4500.12K - Crossed Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 112.50.4500.12K |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Single-row Crossed Roller Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 4272 mm |
| Width (B) | 174 mm |
| Outer Diameter (D) | 4726 mm |
| Inner/Outer Ring Height H1 | 162 mm |
| End-face Height Difference h | 12 mm |
| Number of Lubrication Holes n1 | 10 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 4636 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 4364 mm |
| Lubrication Port Thread / Size Φ1 | RP1/4 |
| Inner Ring Mounting Hole Count n2 | 30 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 33 |
| Outer Ring Mounting Hole Count n3 | 30 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 33 |
| Gear Data | |
| Gear Module m | 25 mm |
| Gear Tip Diameter De | 4845 mm |
| Number of Gear Teeth z | 191 |
| Gear Face Width b | 150 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 4366 kg |
112.50.4500.12K 4726 mm 4272 mm 174 mm 4636 mm 4364 mm Frequently Asked Questions about 112.50.4500.12K Crossed Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The CHG Bearing 112.50.4500.12K is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
The Open Type engineered for 112.50.4500.12K by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
Absolutely. The CHG Bearing 112.50.4500.12K Crossed Roller Slewing Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF 112.50.4500.12K, FAG 112.50.4500.12K, NSK 112.50.4500.12K. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Model 112.50.4500.12K 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 4272 mm) and steep thermal gradients between inner and outer rings.
