THK Ball Spline

Ball Spline
The Ball Spline is a rolling guide spline bearing. This is an innovative product with a ball rolling on a groove connected to the shaft, realizing allowable loads greater than with linear bushing and enabling torque transmission while making linear movements.

1. High Torque Model LBS
This Ball Spline has no angular backlash to increase the rigidity by providing a preload with one spline nut since the spline shaft has 3 crests equidistantly arranged at 120 degrees on the circumference, each held by 2 rows (6 rows in total) of balls under a load.

LBS series: LBS 6, LBS 8, LBS 10, LBS 15, LBS 20, LBS 25, LBS 30, LBS 40, LBS 50, LBS 70, LBS 85, LBS 100
LBST series: LBST 20, LBST 25, LBST 30, LBST 40, LBST 50, LBST 60, LBST 70, LBST 85, LBST 100, LBST 120, LBST 150
LBF series: LBF 15, LBF 20, LBF 25, LBF 30, LBF 40, LBF 50, LBF 60, LBF 70, LBF 85, LBF 100
LBR series: LBR 15, LBR 20, LBR 25, LBR 30, LBR 40, LBR 50, LBR 60, LBR 70, LBR 85, LBR 100

2. Medium Torque Model LT
This Ball Spline has a large load capacity in the radial and torque directions since the spline shaft has 2 to 3 crests on the circumference, each held by 2 rows (4 or 6 rows in total) of balls under a load in order to reasonably provide a preload
LT series: LT 4, LT 5, LT 6, LT 8, LT 10, LT 13, LT 16, LT 20, LT 25, LT 30, LT 40, LT 50, LT 60, LT 80, LT 100
LF series: LF 6, LF 8, LF 10, LF 13, LF 16, LF 20, LF 25, LF 30, LF 40, LF 50

3. Rotary with Gears Model LBG
This model is a unit type that has gear teeth on the flange circumference, and radial and thrust needle bearings compactly integrated on the spline nut. This Ball Spline is optimal for a torque transmission mechanism with spline nut drive.

LBG series: LBG 20, LBG 25, LBG 30, LBG 40, LBG 50, LBG 60, LBG 85
LBGT series: LBGT 20, LBGT 25, LBGT 30, LBGT 40, LBGT 50, LBGT 60, LBGT 85

4. Rotary Model LTR
This model is a compact unit type of Ball Spline whose support bearings are directly integrated with the outer surface of the spline nut.
LTR series: LTR 16, LTR 20, LTR 25, LTR 32, LTR 40, LTR 50, LTR 60
LTR-A series: LTR 8A, LTR 10A, LTR 16A, LTR 20A, LTR 25A, LTR 32A, LTR 40A