Manufactured by CHG Bearing, the 4088X2D/W33 is a precision Double Row Angular Contact Ball Bearings. Key dimensional parameters include a 440 mm bore diameter, a 650 mm outer diameter, and a 188 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.

4088X2D/W33 - Double Row Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 4088X2D/W33 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Double Row Angular Contact Ball Bearing |
| Number of Rows | Double Row |
| Load Direction | Combined |
| Dimensions | |
| Bore Diameter (d) | 440 mm |
| Width (B) | 188 mm |
| Outer Diameter (D) | 650 mm |
| Minimum Chamfer Dimension rmin | 2.1 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 927 kN |
| Basic Static Load Rating C0 (kN) | 2200 kN |
| Material | |
| Mass (kg) | 206 kg |
| Cage Material | Brass |
4088X2D/W33 650 mm 440 mm 188 mm Frequently Asked Questions about 4088X2D/W33 Double Row Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 4088X2D/W33 with a precision bore diameter (d) of 440 mm, an outside diameter (D) of 650 mm, and a nominal ring width (B) of 188 mm. This configuration yields an effective cross-sectional wall thickness of 105.0 mm and an envelope ratio (D/d) of 1.48, delivering compact rigidity for OEM machinery housings.
Each 4088X2D/W33 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 (440 mm bore side) ensures perfect planar contact without edge binding.
To safeguard CHG Bearing 4088X2D/W33 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (440 mm x 650 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
To ensure optimum performance of CHG Bearing 4088X2D/W33 Double Row Angular Contact Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 440 mm bore. For the 650 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
