KDN.J02508XP0

Reali-Slim thin-walled four-point contact ball bearings with seals or dust caps

Four-point contact ball bearings with seals or dust caps are able to withstand radial, axial and bending moment loads simultaneously. A bearing series is based on a single cross-section that remains constant as the bore diameter increases, which results in significant space and weight savings. Embedded seals significantly extend the service life of the bearings as they prevent grease leakage and the ingress of contaminants. Bearings are available in metric and inch boundary dimensions.

  • Can withstand radial, axial and bending moment loads simultaneously
  • require significantly less axial space than double row angular contact ball bearings
  • Embedded seals extend bearing life
  • Thin cross-section
  • Lightweight
  • low friction
  • high hardness
  • high running accuracy

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter25.0mm
Outer Diameter41.0mm
Width8.001mm
Radial section8.0mm
Contact angle30.0°

Performance

Limiting speed3000.0r/min

Properties

Rolling bearing type Four-point contact ball bearing (Type X)
Contact type four-point contact
Number of columns 1
Cage Brass or non-metallic composite
Paired configuration None
Material, Bearing Bearing Steel
Coated Without
Sealing With seal on both sides
Seal type Contact
Lubricant Grease
Relubrication function Without
Metric/Imperial Measuring System Metric system

Logistics

Net product weight0.06kg
eClass Code 23-05-08-07
UNSPSC Code 31171538

Technical Parameters

Technical Parameters

Size

d25.0mm Hole diameter
D41.0mm Outer diameter
H8.0mm Radial cross section
B8.001mm Width
d2 ≈31.55mm Inner ring groove diameter
D2 ≈34.42mm Outer ring groove diameter
3.969mm Ball diameter
0.8mm Maximum radius of shaft or housing chamfer

Data Calculation

Radial dynamic load rating of Kaydon bearingsCK3.25kN
Basic radial static load rating ofC03.28kN
Basic rated axial static loadC0a7.43kN
Basic rated moment dynamic loadCM0.04kN-m
Basic rated moment static loadC0M0.049kN-m
Maximum starting moment without loading0.02N-m
Limiting speed 3000r/min

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