638/8-2Z

Deep groove ball bearing with shields on both sides

Single row deep groove ball bearings with shields on both sides are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds.

They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.

  • Integral sealing prolongs bearing service life
  • Simple, versatile and robust design
  • Low friction and high-speed capability
  • Accommodate radial and axial loads in both directions
  • Require little maintenance

Dimensions

d
8 mm
Bore diameter
D
16 mm
Outside diameter
B
6 mm
Width
d2
9.65 mm
Recess diameter
D2
14.2 mm
Recess diameter
r1,2
min.0.2 mm
Chamfer dimension

Calculation data

Basic dynamic load rating C
0.819 kN
Basic static load rating C0
0.3 kN
Fatigue load limit Pu
0.012 kN
Reference speed
90 000 r/min
Limiting speed
45 000 r/min
Minimum load factor kr
0.015
Calculation factor f0
7.5

Tolerance class

Dimensional tolerances
Normal
Radial run-out
Normal
SKU: 638/8-2Z-SKF Categories: , ,

Description

Properties

Filling slots Without
Number of rows 1
Locating feature, bearing outer ring None
Bore type Cylindrical
Cage Sheet metal
Matched arrangement No
Radial internal clearance CN
Material, bearing Bearing steel
Coating Without
Sealing Shield on both sides
Sealing type Non-contact
Lubricant Grease
Relubrication feature Without

(8X16X6)

Additional information

Weight 0.0044 kg
Size (mm)

Colour