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.
Flat double-row bearing cages with bearing rollers
Manufactured from profiles of light metals - aluminium (Al)x with polyamide inserts
High precision and strength at low deadweight (aluminium)
Destined for heavy-duty working conditions at high loads and accelerations
Working temperature up to 120°C
Technical drawing of HR_ZW bearing cages
Dimension table of HR_ZW bearing cages
Roller
diameter
Ø
Type
/symbol
Dimensions
Load capacity *
Functional
dimension
A
DW
LW
t
e
LK
max
C
[N]
CO
[N]
Ha
5
HR 50 ZW
24
5
5
10
6
2 000
50 500
101 600
24.4+0.2
7
HR 70 ZW
40
7
10
13
8
2 000
112 800
228 400
40.5+0.2
10
HR 100 ZW
55
10
14
17
10
2 000
188 400
348 300
55.5+0.2
*) - Load capacity for a theoretical cage length of 100 mm with applied force “F” as shown in the drawing.
- Load capacity refers to linear guides with a surface hardness of 60 ±2 HRC and surface roughness Ra < 0.4.
- The basis for load capacity calculations is the number of bearing needles / rollers / balls contained in the cage.
- Cage length tolerance LK +0 / -t
Weight table of HR_ZW bearing cages
Table for weight values of bearing cages
(for the length of Lk=1000 mm) [g]
Type/symbol
Aluminum
HR 50 ZW
215
HR 70 ZW
602
HR 100 ZW
1233
AlAluminum
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
