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SGTrack Roller Bearings

SG66/3

d 6 × D 22 × B 8 mm

The SG66/3 is a track roller bearing with bore 6mm, outer diameter 22mm, and width 8mm rated for dynamic load 2.6 kN.

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SG66/3 — representative product photo
Representative product
SG66/3 · 6x22x8 mm

📋 Technical Specifications

Bore (d)
6mm
Outer Dia. (D)
22mm
Width (B)
8mm
Dynamic Load (Cr)
2.60 kN(2600 N)
Static Load (C0r)
1.10 kN(1100 N)
Reference Speed
12000rpm
Bearing typeTrack Roller Bearings
SeriesSG
Seal type2RS (rubber seals) or ZZ (metal shields)
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)6
Outer diameter (D)22
Width (B)8
Rail diameter (dw)6
Rail center diameter (A)25.5

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

📑 Drawings & 3D Model

SG66/3 bearing dimension drawing, 6 x 22 x 8 mm
SG66/3 dimension drawing: bore d 6 mm × outer diameter D 22 mm × width B 8 mm. Tolerance class ABEC-1 (P0). Internal design is shown schematically. Supplied sealed: 2RS (rubber seals) or ZZ (metal shields). Runs on a Ø6 mm rail; rail center diameter A 25.5 mm.
📑
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.

⚡ Source-Data Reference Speed

Catalog reference
12,000 rpm

Lubrication method and application speed limit are confirmed per inquiry; no oil-speed value is derived from this number.

⇄ Same-size Bearings & Reference Options

The models below share the 6x22x8 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
SG66
6x22x10 mm
SG
B +2.0mm
SG66/1
6x22x10 mm
SG
B +2.0mm
SG66/2
6x22x10 mm
SG
B +2.0mm
SG66/5
5x22x8 mm
SG
SG66/21
6x21x11 mm
SG
B +3.0mm
Similar size — reference only, verify all interfaces
636
6x22x7 mm
6300
B -1.0mm
636 2RS
6x22x7 mm
6300
B -1.0mm
636 2RZ
6x22x7 mm
6300
B -1.0mm
636 ZZ
6x22x7 mm
Extra Small / Miniature Deep Groove Ball Bearing
B -1.0mm
636DD
6x22x7 mm
6300
B -1.0mm
636VV
6x22x7 mm
6300
B -1.0mm
F636
6x22x7 mm
Standard Flanged Bearings
B -1.0mm

⚙ 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.

About NLHB →
4,300+
Models
15+
Years
RFQ
Specification Confirmed

❓ Frequently Asked Questions

What are the dimensions of SG66/3?
The SG66/3 bearing has bore (d) = 6 mm, outer diameter (D) = 22 mm, and width (B) = 8 mm.
Is there a SG66/3 drawing or CAD file?
Yes. The SG66/3 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 SG66/3?
Dynamic load rating (Cr) = 2.60 kN (2600 N), static load rating (C0r) = 1.10 kN.
What tolerance class is the SG66/3?
The standard tolerance class of the SG66/3 is ABEC-1 (P0) per GB/T 307.1, unless otherwise agreed.
What bearing series does SG66/3 belong to?
The SG66/3 belongs to the SG within the Track Roller Bearings category.
Can NLHB supply SG66/3 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 SG66/3 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 SG66/3?
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 SG66/3

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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