嗨
1.7.11.2 Friction
The table shows the maximum frictional resistance of the individual end seal. Depend-
在密封设置（SS，ZZ，DD，KK）上，可能必须乘以该值。价值
indicated apply to blocks on uncoated rails. Higher friction forces occur on coated
rails.
表1.100
Frictional resistance of the single-lipped seals
RG_15
2,0
RG_20
2,5
RG/QR_25
2,8
RG/QR_30
3,3
Series/size
摩擦力[n]
Series/size
摩擦力[n]
RG/QR_35
3,5
RG/QR_45
4,2
RG_55
5,1
RG_65
6,7
1.7.12 Tolerances depending on accuracy class
The RG and QR series are available in four accuracy classes depending on parallelism
between block and rail, height accuracy H and accuracy of width N. The choice of
accuracy class is determined by the machine requirements.
H
N
D
B
C
A
1.7.12.1 Parallelism
Parallelism of stop surfaces D and B of block and rail and parallelism of top of block
C to mounting surface A of rail. Ideal linear guideway installation is required, as is a
measurement in the centre of the block.
表1.101
块和铁轨之间平行的公差
Rail length [mm]
H
P
SP
UP
Accuracy class
–
100
7
3
2
2
100 -
200
9
4
2
2
200 -
300
10
5
3
2
300 –
500
12
6
3
2
500 –
700
13
7
4
2
700 –
900
15
8
5
3
900 - 1100
16
9
6
3
1100 – 1500
18
11
7
4
1500 – 1900
20
13
8
4
1900 – 2500
22
15
10
5
2500 – 3100
25
18
11
6
3100 – 3600
27
20
14
7
3600 – 4000
28
21
15
7
Unit: µm
线性指南
RG/QR系列
82