Manufactured by CHG Bearing, the 2N-BT52407-2 is a precision Three-row Cylindrical Roller Slewing Bearings. Key dimensional parameters include a 2596 mm bore diameter, a 3035 mm outer diameter, and a 170 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.

2N-BT52407-2 - Three-row Cylindrical Roller Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 2N-BT52407-2 |
| Brand | CHG® |
| Gear Type | External Gear |
| Characteristics | |
| Bearing Type | Three-row Cylindrical Roller Slewing Bearing |
| Row Configuration | Three-row |
| Dimensions | |
| Bore Diameter (d) | 2596 mm |
| Width (B) | 170 mm |
| Outer Diameter (D) | 3035 mm |
| Inner/Outer Ring Height H1 | 210 mm |
| End-face Height Difference h | 12 mm |
| Number of Lubrication Holes n1 | 14 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 4041 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 3694 mm |
| Lubrication Port Thread / Size Φ1 | M10×1 |
| Inner Ring Mounting Hole Count n2 | 100 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 39 |
| Outer Ring Mounting Hole Count n3 | 100 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 39 |
| Gear Data | |
| Gear Module m | 24 mm |
| Gear Tip Diameter De | 4243.2 mm |
| Number of Gear Teeth z | 174 |
| Gear Face Width b | 172 mm |
| Addendum Modification Coefficient x | 0.5 |
| Reference Data | |
| Reference Mass (kg) | 4709 kg |
2N-BT52407-2 3035 mm 2596 mm 4041 mm 3694 mm 170 mm Frequently Asked Questions about 2N-BT52407-2 Three-row Cylindrical Roller Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model 2N-BT52407-2 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 2596 mm) and steep thermal gradients between inner and outer rings.
To ensure optimum performance of CHG Bearing 2N-BT52407-2 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 2596 mm bore. For the 3035 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Standard batches of CHG Bearing 2N-BT52407-2 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
Yes, 100% of 2N-BT52407-2 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.
