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 plastic bearing cages with bearing needles
Made of abrasion resistant plastic.
Working temperature up to do 120°C.
Applicable areas include also linear guides of the types "S" and "J"
Technical drawing of FF bearing cages
Dimension table of FF bearing cages
Needle
diameter
Ø
Type
/symbol
Dimensions
Load capacity *
Functional
dimension
A
DW
LW
a
Le
max
Ze**
C
[N]
CO
[N]
Ha
2
FF 2010
10
2
6.8
2
32
7
21 300
61 900
10.3+0.2
2.5
FF 2515
15
2.5
9.8
2.4
45
8
32 700
92 300
15.3+0.2
3
FF 3020
20
3
13.8
3
60
9
47 800
133 200
20.4+0.2
3.5
FF 3525
25
3.5
17.8
3.2
75
10
64 700
177 300
25.4+0.2
*) - 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.
- Cage i composwed of parts. Le - length of 1 part. Ze - number of neadels in 1 row of 1 part.
**) Ze - number of bearing needles in per row of 1 bearing cage segment.
Weight table of FF bearing cages
Table for weight values of bearing cages
(for the length of Lk=1000 mm) [g]
Type/symbol
Plastic
FF 2010
46
FF 2515
84
FF 3020
148
FF 3525
221
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
