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.
RNG
General information
RNG-type linear guides share the same structural design as RN-type linear guides but differ in external dimensions. Compared to RN-type, RNG-type linear guides offer reduced cross-sectional area for the same rolling element diameter. This makes them both: lighter and more cost-effective.
RNG linear guides are compatible with RBN and KBN bearing cages. End pieces and wipers can be added if needed.
They are made of tool steel 1.2842 with a hardness of 58–62 HRC. A stainless-steel version made of 1.4034 with a minimum hardness of 54 HRC is also available.
Technical drawing of RNG type linear guides
Dimension table of RNG linear guides
|
Type
|
Dimensions
|
Fixing holes
|
Head holes
|
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
A
-0.3 |
B
|
Dw
|
J
|
L1
|
L2
|
N
|
d
|
e
|
f
|
g
|
e1
|
q
|
m
|
u
|
|
|
RNG4
|
19 | 9 | 4.5 | 9 | 25 | 12.5 | 3.5 | 5.5 | M3 | 2.65 | 6.3 | M3 | 6 | 3.5 | - |
|
RNG6
|
25 | 12 | 6.5 | 12 | 25 | 12.5 | 5 | 7 | M4 | 3.3 | 8.8 | M3 | 6 | 5 | - |
|
RNG9
|
33 | 16 | 9 | 16 | 25 | 12.5 | 6 | 8.5 | M5 | 4.4 | 11.8 | M3 | 6 | 8 | 8 |
|
RNG12
|
45 | 22 | 12 | 22 | 50 | 25 | 8 | 12 | M8 | 6.8 | 15.8 | M5 | 7.5 | 11 | 10 |
Table of available lengths and accessories
|
Type
|
L
Standard lengths |
L
max |
Bearing cages
|
End pieces | Endpieces with wipers | Fixing screws |
|---|---|---|---|---|---|---|
|
RNG4
|
050 075 100 125 150 175 200 225 250 275 300 | 700 | RBN4 KBN4 | GBN4 GCN4 | GCN4-A | GD4 |
|
RNG6
|
100 150 200 250 300 350 400 | 1500 | RBN6 KBN6 | GBN6 GCN6 | GCN6-A | GD6 |
|
RNG9
|
100 150 200 250 300 350 400 450 500 | 1500 | KBN9 | GBN9 GCN9 | GCN9-A | GD9 |
|
RNG12
|
200 300 400 500 600 700 800 900 1000 | 1500 | KBN12 | GBN12 GCN12 | GCN12-A | GD12 |
