Linear guides
Linear guides form the basis of a linear bearing. They usually take the form of a metal strip with fixing holes and a raceway for the rolling elements of the bearing cages. The raceway can be flat or profiled. The main task of linear guides is to transfer pressure from the machine parts to which they are bolted to the rolling elements and to provide the rolling elements with the best possible conditions for correct operation.
R
General information
Linear bearings based on R-type linear guides provide precise feed motion in a relatively compact design. Owing to the V-profile, the R-type rails are able to work with ball bearing cages (types AK, RKK) or cross roller bearing cages (types AA, RRK, AC).
By default, R-type guides are made from tool steel grade 1.2842, with a hardness of 58-62 HRC. The stainless steel version is manufactured from 1.4034 (X46Cr13) and features a minimum hardness of 54 HRC.
Technical drawing of R type linear guides
Dimension table of R type linear guides
|
Type
|
Dimensions
|
Fixing holes
|
Front holes
|
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
A
-0.3 |
B
|
DW
|
J
|
L1
|
L2
|
N
|
d
|
e
|
f
|
g
|
e1
|
m
|
q
|
|
|
R1
|
8.5
|
4
|
1.5
|
3.9
|
10
|
5
|
1.8
|
3
|
M2
|
1.65
|
2.6
|
M1.6
|
1.9
|
2.5
|
|
R2
|
12
|
6
|
2
|
5.5
|
15
|
7.5
|
2.5
|
4.4
|
M3
|
2.55
|
4
|
M2.5
|
2.7
|
3.5
|
|
R3
|
18
|
8
|
3
|
8.3
|
25
|
12.5
|
3.5
|
6
|
M4
|
3.3
|
4.8
|
M3
|
4.1
|
7
|
|
R6
|
31
|
15
|
6
|
13.9
|
50
|
25
|
6
|
9.5
|
M6
|
5.2
|
9.8
|
M5
|
6.9
|
9
|
|
R9
|
44
|
22
|
9
|
19.7
|
100
|
50
|
9
|
10.5
|
M8
|
6.8
|
15.8
|
M6
|
9.8
|
9
|
|
R12
|
58
|
28
|
12
|
25.9
|
100
|
50
|
12
|
13.5
|
M10
|
8.5
|
19.8
|
M8
|
12.9
|
12
|
Table of available lengths and accessories
|
Type
|
L
Stand lengths |
L
max |
Bearing cages
|
End pieces
|
End pieces
with wipers |
Fixing screws
|
|---|---|---|---|---|---|---|
|
R1
|
20 30 40 50 60 70 80 100 120
|
200
|
GB1
|
_
|
_
|
|
| R2 |
20 45 60 75 90 105 120 150 180
|
300
|
GB1
|
_
|
_
|
|
| R3 |
50 75 100 125 150 175 200 225 250 275 300 350 400 500 600
|
700
|
GA3 GB3 GC3
|
GC3-A
|
GD3
|
|
| R6 |
100 150 200 250 300 350 400 450 500 600 700 800 1000
|
1500
|
GA6 GB6 GC6
|
GC6-A
|
GD6
|
|
| R9 |
200 300 400 500 600 700 800 900 1000 1100 1200 1400
|
1500
|
GA9 GB9 GC9
|
GC9-A
|
GD9
|
|
| R12 |
200 300 400 500 600 700 800 900 1000 1100 1200
|
1500
|
GA12 GB12 GC12
|
GC12-A
|
GD12
|
R-type guides can also be combined with RD-type linear guides as well as with recirculating units of types: SK, SKD, SR, and SKC.
R-type linear guides are 100% interchangeable with LWR, VR, SV, RSD, and GR linear guides.
