Accuracy

Accuracy

Accuracy of guideways LFS

Data on the straightness, parallelism (differential measurement), length and positional tolerances of guideways are given in the following tables and figures, ➤ Figure to ➤ Figure.

The guideways are precision straightened and the tolerances are better than DIN EN 12020.

Length tolerance

Length

Tolerance

L

 mm

 mm

Single-piece guideways

L < 1 000

±2

1 000 ≦

L < 2 000

±3

2 000 ≦

L < 4 000

±4

4 000 ≦

L

±5

Multi-piece guideways

Total length L

±0,1%

Straightness tolerance for guideways

Length of guideway

Tolerance

t1

(contact face)

t2

(lateral)

 mm

 mm

L < 1 000

0,5

0,2

1 000 ≦

L < 2 000

1

0,3

2 000 ≦

L < 3 000

1,5

0,4

3 000 ≦

L < 4 000

2

0,5

4 000 ≦

L < 5 000

2,5

0,6

5 000 ≦

L < 6 000

3

0,7

6 000 ≦

L < 7 000

3,5

0,8

7 000 ≦

L < 8 000

4

0,9

Tolerances for guideways LFS, LFS..-C, LFS..-NZZ, LFSR..-ST
Guideway LFS..-F
 Contact face indicated by slot
Guideway LFS120
Parallelism determined by differential measurement
Guideway LFS..-M
Parallelism determined by differential measurement
Guideway LFS..-FH
 Contact face indicated by slot
Tolerances for H2 and h4

Tolerances for H2 and h4, see table, ➤ Figure and ➤ Figure.

Guideway

Tolerance for

H2

h4

mm

mm

LFS20

+0,3

–0,1

LFS25

–0,1

LFS25-M

±0,25

LFS32

+0,2

LFS32-C

+0,2

LFS32-N

+0,2

LFS32-F

+0,1

LFS32-M

±0,25

LFS32-FH

+0,1

LFS42-C

+0,2

LFS42-F

+0,1

LFS52

+0,2

LFS52-C

+0,2

LFS52-NZZ

+0,2

LFS52-F

+0,1

LFS52-M

+0,5

LFS52-FH

+0,1

LFS86-C

+0,25

LFS120

+0,2

Reference dimension for accuracy, dimension H2
Tolerance for H2 = +0,3 mm 
Reference dimension for accuracy, dimension h4

© Schaeffler Austria GmbH