BK 0408

Needle roller bearings with closed end faces and drawn outer rings

Drawn cup needle roller bearings are typically used in applications where the housing bore cannot be used as a raceway for needle roller and cage assemblies, but where particularly compact and economical bearing configurations are required. Due to the large number of rollers, the bearings have a high load carrying capacity and stiffness. The closed end face design makes it suitable for bearing configurations mounted at the shaft end.

  • High radial load carrying capacity
  • Can withstand small axial guiding forces
  • High stiffness
  • Small cross-section

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Needle roller full bore diameter4.0mm
Outer diameter8.0mm
Width8.0mm

Performance

Basic rated dynamic load1.76kN
Basic rated static load1.37kN
Reference speed22000.0r/min
Limiting speed26000.0r/min

Properties

Bearing parts Bearing without inner ring
Number of columns 1
Type of outer ring Pressed outer ring closed at one end
Alignment function without
Cage Steel plate
Number of flanges, outer ring 2
Tolerance class Normal
Material, bearing Bearing steel
Coated Without
Sealing without
Seal type Not Applicable
Lubricant None
Relubrication function Without

Logistics

Net weight0.0016kg
eClass Code 23-05-09-03
UNSPSC Code 31171512

Technical Parameters

Technical Parameters

Size

Fw min.4.0mm Roller inner diameter
D8.0mm Outer diameter
C8.0mm Width
C16.4mm Stamped outer ring depth BK
r0.3mm Stamped outer ring chamfer size (outer ring)", "qualifier" : "min.

Data calculation

Basic dynamic load rating C1.76kN
Basic static load ratingC01.37kN
Fatigue Load LimitPu0.14kN
Reference speed22000.0r/min
Limit speed26000.0r/min

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