The 4000TNFB-2RS is a track roller bearing with bore 9.525mm, outer diameter 30.8mm, and width 11mm.

| Bearing type | Track Roller Bearings |
| Series | Bevelling Machine Bearings |
| Seal type | 2RS (double rubber seals) |
| Material | Confirmed per inquiry — grade and certificate availability reviewed before quotation |
| Bore type | Round |
| Dimension unit | millimeter (mm) |
| Bore diameter (d) | 9.525 |
| Outer diameter (D) | 30.8 |
| Width (B) | 11 |
Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.
Drawings and 3D models are provided per inquiry. Tell us your application and we will send the appropriate file format (DXF, DWG, STEP, IGES).
The models below share the 9.525x30.8x11 mm boundary dimensions. Matching d/D/B alone does not prove interchangeability; verify seals, clearance, ring features, load ratings, fits, and application conditions before replacement.
No other catalog models share the same boundary dimensions.
Same bearing family or similar dimensions.
Same model family — dimensions may differThis 4000TNFB-2RS is an NLHB in-house manufactured bearing. We control the full process — material selection, turning, heat treatment, grinding, assembly, and final inspection. Each batch ships with measurement records and material certificates on request.
About NLHB →Send us your quantity, application and target lead time. We confirm spec, interchange and realistic delivery — no order confirmed until you approve.
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