Manufactured by CHG Bearing, the EE134102D/143/144CD is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 260.35 mm bore diameter, a 365.125 mm outer diameter, and a 228.6 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.
EE134102D/143/144CD - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | EE134102D/143/144CD |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 260.35 mm |
| Width (B) | 228.6 mm |
| Outer Diameter (D) | 365.125 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 3.3 min mm |
| Outer Ring Chamfer | 6.35 min mm |
| Inner Ring Assembly Width Tolerance | -1.524 – +1.524 mm |
| Outer Ring Assembly Width | 228.6 mm |
| Outer Ring Assembly Width Tolerance | -1.524 – +1.524 mm |
| Shaft Abutment Diameter | 282.9 mm |
| Housing Abutment Diameter | 346.3 mm |
| Lubrication Hole Diameter | 10 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1940 kN |
| Basic Static Load Rating C0 (kN) | 4880 kN |
| Material | |
| Mass (kg) | 73.4 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel |
| Lubrication Groove Width | 21 mm |
EE134102D/143/144CD 365.125 mm 260.35 mm 228.6 mm Frequently Asked Questions about EE134102D/143/144CD Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To ensure optimum performance of CHG Bearing EE134102D/143/144CD Four-Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 260.35 mm bore. For the 365.125 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
To safeguard CHG Bearing EE134102D/143/144CD against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (260.35 mm x 365.125 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
When fitting EE134102D/143/144CD over a 260.35 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies EE134102D/143/144CD with a precision bore diameter (d) of 260.35 mm, an outside diameter (D) of 365.125 mm, and a nominal ring width (B) of 228.6 mm. This configuration yields an effective cross-sectional wall thickness of 52.4 mm and an envelope ratio (D/d) of 1.4, delivering compact rigidity for OEM machinery housings.
