10
Ball screw drives KGT
Model
Type*
Initial Subsequent
lubrication lubrication**
KGF-D 1605
E
3.8 ml / 3.5 g
2.7 ml /2.4 g
KGF-D 1610
K
3.6 ml / 3.3 g
2.2 ml / 2 g
KGF-D 2005
K
4.9 ml / 4.5 g
3 ml / 2.7 g
KGF-D 2505
E
5.6 ml / 5.2 g
3.9 ml / 3.6 g
KGF-D 2510
K
6.8 ml / 6.3 g
4.1 ml / 3.8 g
KGF-D 2520
D
3.8 ml / 3.5 g
2.3 ml / 2.1 g
KGF-D 2525
D
4.4 ml / 4.1 g
2.6 ml / 2.5 g
KGF-D 2550
D
6.8 ml / 6.3 g
4.1 ml / 3.8 g
KGF-D 3205
E
9 ml / 8.3 g
6.3 ml / 5.8 g
KGF-D 3210
E
23 ml / 21.2 g
16.1 ml / 14.8 g
KGF-D 3220
K
16.3 ml / 15 g
9.8 ml / 9 g
KGF-D 4005
E
11.7 ml / 10.8 g
8.2 ml / 7.6 g
KGF-D 4010
E
28.8 ml / 26.5 g
20.2 ml / 18.6 g
KGF-D 4020
K
20.4 ml / 18.8 g
12.2 ml / 11.3 g
KGF-D 4040
D
13.5 ml / 12.4 g
8.1 ml / 7.5 g
KGF-D 5010
E
46 ml / 42.3 g
32.2 ml / 29.6 g
KGF-D 5020
K
51.3 ml / 47.2 g
30.8 ml / 28.3 g
KGF-N 1605
E
4.1 ml / 3.8 g
2.9 ml / 2.7 g
KGF-N 2005
E
5.2 ml / 4.8 g
3.6 ml / 3.4 g
KGF-N 2020
D
3.3 ml / 3 g
2 ml / 1.8 g
KGF-N 2050
D
6.4 ml / 5.9 g
3.8 ml / 3.5 g
KGF-N 2505
E
6.5 ml / 6 g
4.6 ml / 4.2 g
KGF-N 3205
E
10 ml / 9.2 g
7 ml / 6.4 g
KGF-N 3210
E
25.6 ml / 23.6 g
17.9 ml / 16.5 g
KGF-N 3240
D
4.2 ml / 3.9 g
2.5 ml / 2.3 g
KGF-N 4005
E
12.3 ml / 11.3 g
8.6 ml / 7.9 g
KGF-N 4010
E
30.5 ml / 28.1 g
21.4 ml / 19.7 g
KGF-N 5010
E
48 ml / 44.2 g
33.6 ml / 30.9 g
KGF-N 6310
E
63 ml / 58 g
44.1 ml / 40.6 g
* E = guide piece, K = return duct, D = multi-turn return duct
** Assuming ideal conditions
5.3 Lubrication intervals
Lubrication should be carried out very
carefully and regularly as ball screw drives
are subject to greater loss of grease than
ball bearings. There are no general guide-
lines on the intervals for lubricating ball
screw drives as the intervals depend on
many factors.
Factors of influence include for example:
• the size and the screw diameter
• the operating speeds and acceleration
values
• sealing efficiency of the wiper
• ambient influences such as temperature,
contamination, liquids ...
