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 single-row bearing cages with bearing needles
Manufactured from profiles of steel (F)
High precision and strength
Dedicated for heavy-duty working conditions at high loads and accelerations
Working temperature up to 150°C
Applicable to linear flat guides
Technical drawing of BF bearing cages
Dimension table of BF bearing cages
Needle
diameter
Ø
Type
/symbol
Dimensions
Load capacity *
Functional
dimension
A
DW
LW
t
e
LK
max
C
[N]
CO
[N]
Ha
3
BF 3020
20
3
15.8
6
4.5
2 000
57 800
170 100
20.4+0.2
5
BF 5015
15
5
11.8
8
5.5
2 000
69 900
154 700
15.3+0.2
5
BF 5023
23
5
19.8
8
5.5
2 000
106 400
265 100
23.4+0.2
5
BF 5032
32
5
27.8
8
5.5
2 000
139 500
375 600
32.5+0.3
7
BF 7028
28
7
24
11
7.5
2 000
150 800
331 800
28.4+0.2
7
BF 7035
35
7
30
11
7.5
2 000
179 800
416 200
35.6+0.3
12
BF 12022
22
12
18
16
10
2 000
178 800
288 300
22.4+0.2
12
BF 12040
40
12
36
16
10
2 000
447 600
938 600
40.5+0.3
*) - Load capacity for the theoretical length of the cage of 100 mm with the thrust force "F" in accordance to the drawing.
- The load capacity is calculated for guides with hardness of 60 +/- 2 HRc oand surface roughness of Ra<0.4.
- Load capacity of bearing cages is calculated on the basis of number of bearing needles mounted in the cage
- Length tolerance LK +0/-t
Weight table of BF bearing cages
Table for weight values of bearing cages
(for the length of Lk=1000 mm) [g]
Type/symbol
Steel
BF 3020
342
BF 5015
375
BF 5023
530
BF 5032
722
BF 7028
875
BF 7035
1 080
BF 12022
1 220
BF 12040
1 970
FSteel
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
