Manufactured by CHG Bearing, the 133.50.3550.03K1 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 3296 mm bore diameter, a 3779 mm outer diameter, and a 260 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.
133.50.3550.03K1 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 133.50.3550.03K1 |
| Brand | CHG® |
| Gear Type | Gearless |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 3296 mm |
| Width (B) | 260 mm |
| Outer Diameter (D) | 3779 mm |
| Inner/Outer Ring Height H1 | 180 mm |
| End-face Height Difference h | 44 mm |
| Number of Lubrication Holes n1 | 8 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 3754 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3448 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 96 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 39 |
| Outer Ring Mounting Hole Count n3 | 96 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Reference Data | |
| Reference Mass (kg) | 3033 kg |
133.50.3550.03K1 3448 mm 3296 mm 3754 mm 3779 mm 260 mm Frequently Asked Questions about 133.50.3550.03K1 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting 133.50.3550.03K1 over a 3296 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 133.50.3550.03K1 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
Engineered according to international ISO boundary plans, CHG Bearing supplies 133.50.3550.03K1 with a precision bore diameter (d) of 3296 mm, an outside diameter (D) of 3779 mm, and a nominal ring width (B) of 260 mm. This configuration yields an effective cross-sectional wall thickness of 241.5 mm and an envelope ratio (D/d) of 1.15, delivering compact rigidity for OEM machinery housings.
To extend the trouble-free lifespan of CHG Bearing 133.50.3550.03K1, 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.
