Manufactured by CHG Bearing, the 133.40.3740.03 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 3540 mm bore diameter, a 3945 mm outer diameter, and a 203 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.
133.40.3740.03 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 133.40.3740.03 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 3540 mm |
| Width (B) | 203 mm |
| Outer Diameter (D) | 3945 mm |
| Inner/Outer Ring Height H1 | 219 mm |
| End-face Height Difference h | 53 mm |
| Number of Lubrication Holes n1 | 6 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 2315 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 2010 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 60 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | M36 |
| Outer Ring Mounting Hole Count n3 | 28 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 38 |
| Gear Data | |
| Gear Module m | 16 mm |
| Gear Tip Diameter De | 1848 mm |
| Number of Gear Teeth z | 117 |
| Gear Face Width b | 107 mm |
| Addendum Modification Coefficient x | 0.25 |
| Reference Data | |
| Reference Mass (kg) | 2322 kg |
133.40.3740.03 3945 mm 3540 mm 203 mm 2315 mm 2010 mm Frequently Asked Questions about 133.40.3740.03 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of 133.40.3740.03 Three-row Cylindrical Roller Slewing Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
To ensure optimum performance of CHG Bearing 133.40.3740.03 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 3540 mm bore. For the 3945 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
To extend the trouble-free lifespan of CHG Bearing 133.40.3740.03, 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.
In its sealed configuration (Open Type), CHG Bearing pre-charges 133.40.3740.03 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.
