Rotary Ball Spline RLSF
RLSF Accuracy Standards
Accuracy Grades
The accuracy of the Ball Spline is determined by the nodding action of the spline-nut and classified into three accuracy class : Normal(N), High(H) and Precision(P).
Accuracy Specification
Tables 1.2.1 ~ 5 indicate the the measurement items of Ball Spline.
Table1.2.1 The Maximum nodding action of Spline Nut on the support unit.
| Nominal Diameter Length |
16, 20 |
25, 32 |
40, 50 |
|||||||
|
Above |
Below |
N |
H |
P |
N |
H |
P |
N |
H |
P |
|
- |
200 |
56 |
34 |
18 |
53 |
32 |
18 |
53 |
32 |
16 |
|
200 |
315 |
71 |
45 |
25 |
58 |
39 |
21 |
58 |
36 |
19 |
|
315 |
400 |
83 |
53 |
31 |
70 |
44 |
25 |
63 |
39 |
21 |
|
400 |
500 |
95 |
62 |
38 |
78 |
50 |
29 |
68 |
43 |
24 |
|
500 |
630 |
112 |
- |
- |
88 |
57 |
34 |
74 |
47 |
27 |
|
630 |
800 |
- |
- |
- |
103 |
68 |
42 |
84 |
54 |
32 |
|
Accuracy Nominal Diameter |
Normal (N) |
High (H) |
Precision (P) |
|
|
16 |
20 |
27 |
11 |
8 |
|
25 |
32 |
33 |
13 |
9 |
|
40 |
50 |
39 |
16 |
11 |
Table1.2.3 The concentricity between components assembly part and attach surface.
|
Accuracy Nominal Diameter |
Normal (N) |
High (H) |
Precision (P) |
|
|
16 |
20 |
46 |
19 |
12 |
|
25 |
32 |
53 |
22 |
13 |
|
40 |
50 |
62 |
25 |
15 |
Table1.2.4 The perpendicularity of flange on the attach surface
|
Accuracy Nominal Diameter |
Normal (N) |
High (H) |
Precision (P) |
|||
|
16 |
20 |
25 |
32 |
30 |
16 |
11 |
|
40 |
50 |
46 |
19 |
13 |
||
Table1.2.5 The accuracy grade on the effective length accuracy
|
Accuracy |
Normal (N) |
High (H) |
Precision (P) |
|
Permissible Value |
33 |
13 |
6 |
Note : Measurement only applies to any 100mm on the Spline shaft.
