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TNFBTrack Roller BearingsDouble Rubber Seals (2RS)

4002TNFB

d 20 × D 56.5 × B 20.6 mm

The 4002TNFB is a track roller bearing with bore 20mm, outer diameter 56.5mm, and width 20.6mm.

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NOMINAL DIMENSION DRAWINGD = 56.5 mmd = 20 mmB = 20.6 mmNLHB BEARINGS4002TNFB20 × 56.5 × 20.6 mmNOMINAL DIMENSIONS • TOLERANCE AND SUPPLY CONFIRMED PER INQUIRY
4002TNFB · 20x56.5x20.6 mm

📋 Technical Specifications

Bore (d)
20mm
Outer Dia. (D)
56.5mm
Width (B)
20.6mm

Load ratings and reference speed for this model are provided with your quotation.

Bearing typeTrack Roller Bearings
SeriesTNFB
Seal typeDouble Rubber Seals (2RS)
MaterialConfirmed per inquiry — grade and certificate availability reviewed before quotation
Bore typeConfirmed per drawing
Dimension unitmillimeter (mm)

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)20
Outer diameter (D)56.5
Width (B)20.6

Corner radius, shoulder dimensions, fits and tolerances are confirmed against the requested suffix and application drawing before quotation.

📑 Drawings & 3D Model

4002TNFB bearing dimension drawing, 20 x 56.5 x 20.6 mm
4002TNFB dimension drawing: bore d 20 mm × outer diameter D 56.5 mm × width B 20.6 mm. Tolerance class ABEC-1 (P0). Internal design is shown schematically. V-edge 90°. Groove shown schematically; groove dimensions on request.
📑
2D Drawing (PDF)
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📐
2D DXF File
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📅
3D STEP Model
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The PDF drawing is free to download. DXF and 3D STEP files are sent on request: tell us the model and your application, and we reply with the CAD files.

⇄ Same-size Bearings & Reference Options

The models below share the 20x56.5x20.6 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.

ModelRelationshipSeriesSealAction
4002TNFB-2RSConfiguration variantBevelling Machine Bearings2RS (double rubber seals)Quote →

⚙ Typical Applications

Linear guide systems
Conveyor systems
Cam followers
Automated machinery
Packaging equipment
Robotics

Why choose NLHB?

NLHB supports both in-house manufacturing and qualified partner sourcing. We confirm the specification, supply route, inspection requirements, and available documentation before quotation.

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❓ Frequently Asked Questions

What are the dimensions of 4002TNFB?
The 4002TNFB bearing has bore (d) = 20 mm, outer diameter (D) = 56.5 mm, and width (B) = 20.6 mm.
Is there a 4002TNFB drawing or CAD file?
Yes. The 4002TNFB dimension drawing (PDF) is free to download on this page. DXF and 3D STEP files are sent on request: tell us the model and your application.
What is the load rating of 4002TNFB?
Load ratings for this model are provided with your quotation. Send the full model code, quantity and application, and we will confirm Cr and C0r.
What tolerance class is the 4002TNFB?
The standard tolerance class of the 4002TNFB is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does 4002TNFB belong to?
The 4002TNFB belongs to the TNFB within the Track Roller Bearings category.
Can NLHB supply 4002TNFB equivalents from other brands?
Depending on the model and order requirements, NLHB may manufacture in-house or source through qualified partner factories. Interchange and supply route are confirmed against your specification before quotation. All trademarks belong to their respective owners.
How do I order 4002TNFB from NLHB?
Click "Request Quote" and send us your quantity, application, and required specifications. We review the specification, supply route, lead time, and pricing before issuing a quotation. Response time depends on specification complexity.
What materials are available for 4002TNFB?
Material grade is confirmed per inquiry. Availability depends on the model, quantity, application, and whether the order is manufactured in-house or sourced through a qualified partner factory. Material certificates or inspection documents are confirmed before quotation when required.

Get a quote for 4002TNFB

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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