Manufactured by CHG Bearing, the 131.22.1770.03 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 1620 mm bore diameter, a 1916 mm outer diameter, and a 138 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.
131.22.1770.03 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 131.22.1770.03 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 1620 mm |
| Width (B) | 138 mm |
| Outer Diameter (D) | 1916 mm |
| Inner/Outer Ring Height H1 | 219 mm |
| End-face Height Difference h | 54 mm |
| Number of Lubrication Holes n1 | 6 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2395 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2085 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 60 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 33 |
| Outer Ring Mounting Hole Count n3 | 60 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 33 |
| Gear Data | |
| Gear Module m | 18 mm |
| Gear Tip Diameter De | 2556 mm |
| Number of Gear Teeth z | 139 |
| Gear Face Width b | 160 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 2430 kg |
131.22.1770.03 1916 mm 1620 mm 2395 mm 2085 mm 138 mm Frequently Asked Questions about 131.22.1770.03 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 131.22.1770.03 with a precision bore diameter (d) of 1620 mm, an outside diameter (D) of 1916 mm, and a nominal ring width (B) of 138 mm. This configuration yields an effective cross-sectional wall thickness of 148.0 mm and an envelope ratio (D/d) of 1.18, delivering compact rigidity for OEM machinery housings.
To ensure optimum performance of CHG Bearing 131.22.1770.03 Three-row Cylindrical Roller Slewing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 1620 mm bore. For the 1916 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Each 131.22.1770.03 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (1620 mm bore side) ensures perfect planar contact without edge binding.
Quality starts with raw material selection: CHG Bearing crafts 131.22.1770.03 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
