This paper deals with the reduction of sticking in a linear-guideway type recirculating ball bearing (linear bearing), which is the significant increase in the required driving force for a linear bearing in a back-and-forth short stroke operation. First, the driving force of a linear bearing with five carriage-body types (A–E, having different dimensions and shapes) under rolling moment load was measured. Simultaneously, the ball's position in the load zone was observed. The experimental results showed that regardless of the carriage-body types, the increasing rate of the driving force and the interspace (space between balls around the center of the load zone on the raised side) decreases and sticking tends to hardly occur as the maximum linear velocity and the stroke length increase. Also, the occurrence of sticking was affected by the carriage-body types. Finally, to examine the relationship of carriage-body types, carriage-body deformation, and the occurrence of sticking, the carriage-body deformation (caused by preloading and tightening torque of bolts) was calculated by finite element method (FEM). The FEM results showed that carriage-body type, which is more deformable, had a tendency to reduce sticking.

References

References
1.
Ohta
,
H.
,
Hanaoka
,
G.
, and
Ueki
,
Y.
,
2017
, “
Sticking of Linear-Guideway Type Recirculating Ball Bearings
,”
ASME J. Tribol.
,
139
(
3
), p.
031103
.
2.
Kasai
,
S.
,
Tsukada
,
T.
, and
Kato
,
S.
,
1989
, “
NSK Commercial Grade Linear Guides
,”
NSK Tech. J.
,
650
, pp.
47
54
.
3.
Ohta
,
H.
,
Sato
,
Y.
, and
Ueki
,
Y.
,
2015
, “
Effects of Misaligned Rails on the Friction Force-Displacement Curves of a Linear Ball Bearing System in Low-Speed Operation
,”
Proc IMechE, J. Eng. Tribol.
,
229
(
12
), pp.
1469
1478
.
4.
Futami
,
S.
,
Furutani
,
A.
, and
Yoshida
,
S.
,
1990
, “
Nanometer Positioning and Its Micro-Dynamics
,”
Nanotechnology
,
1
(
1
), pp.
31
37
.
5.
Futami
,
S.
, and
Furutani
,
A.
,
1991
, “
Nanometer Positioning Using AC Linear Motor and Rolling Guide, 1st Report, System Set-Up and Coarse/Fine Positioning
,”
J. Jpn. Soc. Precis. Eng.
,
57
(
3
), pp.
556
561
.
6.
Futami
,
S.
, and
Furutani
,
A.
,
1991
, “
Nanometer Positioning Using AC Linear Motor and Rolling Guide, 2nd Report, Tribology of the Rolling Guide
,”
J. Jpn. Soc. Precis. Eng.
,
57
(
10
), pp.
1808
1813
.
7.
Tsuruta
,
K.
,
Murakami
,
T.
, and
Futami
,
S.
,
2003
, “
Nonlinear Friction Behavior of Discontinuity at Stroke End in Ball Guide Way
,”
J. Jpn. Soc. Precis. Eng.
,
69
(
12
), pp.
1759
1763
.
8.
Chen
,
J.-S.
,
Chen
,
K.-C.
,
Lai
,
Z.-C.
, and
Huang
,
Y.-K.
,
2003
, “
Friction Characterization and Compensation of a Linear-Motor Rolling-Guide Stage
,”
Int. J. Mach. Tools Manuf.
,
43
(
9
), pp.
905
915
.
9.
Al-Bender
,
F.
, and
Symens
,
W.
,
2005
, “
Characterization of Frictional Hysteresis in Ball-Bearing Guideways
,”
Wear
,
258
(
11–12
), pp.
1630
1642
.
10.
Tanaka
,
T.
,
Oiwa
,
T.
, and
Otsuka
,
J.
,
2006
, “
Study on Friction Model of Linear Ball Guideway for Precision Positioning
,”
J. Jpn. Soc. Precis. Eng.
,
72
(
4
), pp.
470
474
.
11.
Fujita
,
T.
,
Matsubara
,
A.
, and
Yamada
,
S.
,
2011
, “
Analysis of Friction in Linear Motion Rolling Bearing With Locomotive Multi-Bristle Model Influence of Slipping Velocity Distribution on Friction Characteristics
,”
Trans. Jpn. Soc. Mech. Eng., Ser. C
,
77
(
778
), pp.
2486
2495
.
12.
Sato
,
R.
,
Tsutsumi
,
M.
, and
Imaki
,
D.
,
2007
, “
Experimental Evaluation on the Friction Characteristics of Linear Ball Guides
,”
Trans. Jpn. Soc. Mech. Eng., Ser. C
,
73
(
734
), pp.
2811
2819
.
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