Rollico

Bearing cages - SRK

Bearing cages

The linear bearing cage is an essential component of a linear rolling bearing built with the use of linear guides. The main task of the bearing cage is to hold the rolling elements inside the bearing on the guide's raceways in the correct operating position.

SRK

Product configurator
Flat single-row plastic bearing cages with bearing rollers and positive control
  • Made of plastic
  • Work with RSG_MVZ, CR3_MVZ linear guides
  • Equipped in pinion
  • Segmets design enables to combine them in a bearing cage of any length
  • Working temperature up to 105°C
  • Applicable to automatics, mechatronics, optomechanics.

Technical drawing of SRK bearing cages

Dimension table of SRK bearing cages 

Type
Dimensions
Pinion Z (acc. to DIN3967)
Load capacity *
Material and weight [g/Lk1]
DW
t
t1
t2
Lk1
Lk2
Moduł
c
C
[N]
CO
[N]
Plastic
SRK3
3
3.63
 5.4
10.9
110
 216 0.3 0.8
10200
359
3.8
SRK4
4
4.6
 6.9
13.02
111
 218 0.3 0.8
18200
791
7.2
SRK6
6
7.5
 10.9
20.1
181
 351 0.3 1.2
47620
2160
25.2

*)  - Load capacity for 1 roller with the thrust force "Fn" in accordance with the drawing.
     - C - dynamic load capacity, C0 - static load capacity
     - The load capacity is calculated for guides with 90º V-profile (where bearing roller touches the guidway track with its total length Lw) with hardness of 60 +/- 2 HRC and surface roughness of  Ra<0.4.
     - Load capacity of bearing cages is calculated on the basis of number of bearing rollers mounted in the cage
     - Length tolerance LK +0/-t

 

Precision

Sorting tolerance
up to 0.5 µm

Quality

Quality Management System
compliant with ISO 9001:2015

Experience

Over 20 years of expertise
in linear technology.

Customization

We manufacture components
tailored to individual requirements

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