Inch R / 1600 SeriesDeep Groove Ball Bearings

R8

d 12.7 × D 28.575 × B 6.35 mm

The R8 is a deep groove ball bearing with bore 12.7mm, outer diameter 28.575mm, and width 6.35mm rated for dynamic load 3.9 kN.

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R8 — representative product photo — Representative product

R8 · 12.7x28.575x6.35 mm

📋 Technical Specifications

Bore (d)

12.7mm

Outer Dia. (D)

28.575mm

Width (B)

6.35mm

Dynamic Load (Cr)

3.93 kN(3930 N)

Static Load (C0r)

2.23 kN(2230 N)

Reference Speed

Confirm per inquiryrpm

Bearing type	Deep Groove Ball Bearings
Series	Inch R / 1600 Series
Seal type	Confirm per inquiry
Material	Confirmed per inquiry — grade and certificate availability reviewed before quotation
Bore type	Confirmed per drawing
Dimension unit	millimeter (mm)

📋 Nominal Variants by Seal Type

Catalog variants open a detail page. Inquiry-only configurations go directly to RFQ.

Seal Type	Model Code	Typical Use
Double metal shields	R8ZZ	General dust protection	Quote →
Double contact rubber seals	R8 2RS (inquiry only)	Dust and moisture protection at moderate speed	Quote →
Double non-contact rubber seals	R8 2RZ (inquiry only)	Lower-friction sealing at higher speed	Quote →
C3 radial clearance	R8 C3 (inquiry only)	Motors and applications with higher operating temperature	Quote →

📐 Detailed Dimensions

Basic dimensions (mm)

Bore diameter (d)	12.7
Outer diameter (D)	28.575
Width (B)	6.35

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

📑 Drawings & 3D Model

📑

2D Drawing

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📅

3D STEP Model

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🔎

CAD File

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Drawings and 3D models are provided per inquiry. Tell us your application and we will send the appropriate file format (DXF, DWG, STEP, IGES).

⇄ Same-size Bearings & Reference Options

The models below share the 12.7x28.575x6.35 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.

🔄 Related Models

Same bearing family or similar dimensions.

Same model family — dimensions may differ

⚙ Typical Applications

Electric motors

Fans and blowers

Pumps

Household appliances

Power tools

Office equipment

General machinery

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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RFQ

Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of R8?

The R8 bearing has bore (d) = 12.7 mm, outer diameter (D) = 28.575 mm, and width (B) = 6.35 mm.

What is the load rating of R8?

Dynamic load rating (Cr) = 3.93 kN (3930 N), static load rating (C0r) = 2.23 kN.

What bearing series does R8 belong to?

The R8 belongs to the Inch R / 1600 Series within the Deep Groove Ball Bearings category.

Can NLHB supply R8 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 R8 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 R8?

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 R8

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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R8