The Ball Spline is a rolling guide spline bearing. It 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.
Medium torque type-LT-LFThis 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.
Application:Die-set shaft and similar applications requiring straight motion under a heavy load;
Loading system and similar applications requiring rotation to a given angle at a fixed position
Automatic gas-welding machine spindle and similar applications requiring a whirl-stop on one shaft
Column and arm of industrial robot
Spot-welding machine
Riveting machine
Book-binding machine
Automatic filler
XY recorders
Automatic spinner
Optical measuring instrument
Flange type-LF Nominal diameter 6~50mmModel No. | Spline nut dimension | Shaft Dia. | Balls columns | Basic torque rating | Basic load rating (Radial) | Static permissible moment | Mass |
Out dia. | Length | Flange Dia. | H | F | C | r | Lubrication holes | PCD | Mounting hole |
D | Tolerance | L | Tolerance | D1 | Tolerance | d0 | d1xd2xh | D0 h7 | CT Nm | C0T Nm | C kN | C0 kN | MA.1 Nm | MA.2 Nm | Spline nut g | Shaft kg/m |
LT 6 | 14 | 0 -0.011 | 25 | 0 -0.2 | 30 | 0 -0.2 | 5 | 7.5 | 0.5 | 0.5 | 1.5 | 22 | 3.4x6.5x3.3 | 6 | 4 | 0.98 | 1.96 | 1.18 | 2.16 | 4.9 | 36.3 | 35 | 0.23 |
LT 8 | 16 | 25 | 32 | 5 | 7.5 | 0.5 | 0.5 | 1.5 | 24 | 3.4x6.5x3.3 | 8 | 4 | 1.96 | 2.94 | 1.47 | 2.55 | 5.9 | 44.1 | 37 | 0.4 |
LT 10 | 21 | 0 -0.013 | 33 | 42 | 6 | 10.5 | 0.5 | 0.5 | 1.5 | 32 | 4.5x8x4.4 | 10 | 4 | 3.92 | 7.84 | 2.84 | 4.9 | 15.7 | 98 | 90 | 0.62 |
LT13 | 24 | 36 | 44 | 7 | 11 | 0.5 | 0.5 | 1.5 | 33 | 4.5x8x4.4 | 13 | 4 | 5.88 | 10.8 | 3.53 | 5.78 | 19.6 | 138 | 110 | 1.1 |
LT 16 | 31 | 50 | 51 | 7 | 18 | 0.5 | 0.5 | 2 | 40 | 4.5x8x4.4 | 16 | 6 | 31.4 | 34.3 | 7.06 | 12.6 | 67.6 | 393 | 230 | 1.6 |
LT 20 | 35 | 0 -0.016 | 63 | 58 | 9 | 22.5 | 0.5 | 0.5 | 2 | 45 | 5.5x9.5x5.4 | 20 | 6 | 56.9 | 55.9 | 10.2 | 17.8 | 118 | 700 | 330 | 2.5 |
LT 25 | 42 | 71 | 0 -0.3 | 65 | 9 | 26.5 | 0.5 | 0.5 | 3 | 52 | 5.5x9.5x5.4 | 25 | 6 | 105 | 103 | 15.2 | 25.8 | 210 | 1140 | 455 | 3.9 |
LT 30 | 47 | 80 | 75 | 10 | 30 | 0.5 | 0.5 | 3 | 60 | 6.6x11x6.5 | 30 | 6 | 171 | 148 | 20.5 | 34 | 290 | 1710 | 565 | 5.6 |
LT 40 | 64 | 0 -0.019 | 100 | 100 | 14 | 36 | 1 | 0.5 | 4 | 82 | 9x14x8.6 | 40 | 6 | 419 | 377 | 37.8 | 60.5 | 687 | 3760 | 1460 | 9.9 |
LT 50 | 80 | 125 | 124 | 16 | 46.5 | 1 | 1 | 4 | 102 | 11x17.5x11 | 50 | 6 | 842 | 769 | 60.9 | 94.5 | 1340 | 7350 | 2760 | 15.5 |
How to select a ball spline?1. Setting conditions
Stroke length, velocity, magnitude of the applied load, mounting space, operating frequency, required service life, dimension(No. of spline nuts, span), installation direction, environment, accuracy.
2. Selecting a type
High torque type-LBS/LBST/LBF/LBR/LBH
Medium torque type-LT/LF/LT-X
Rotary type-LBG/LBGT/LTR/LTR-A
3. Studying the spline shaft strength
Estimating the spline shaft diameter/length, permissible load on the spling shaft, displacement of the spline shaft(deflection, torsion), method for fixing the spline shaft.
4. Predicting the service life, compared with the required service life.
5. Selecting a preload
6. Determining the accuracy
7. Selection according to the environment
Why Choose us?Over 10 years export expenrience;
Less MOQ;
Competitve Price;
Quick response;
Short Delivery time;
Good service
Provide systematic solution for equipment components.
Nanjing Relymech Machinery Co., Ltd., a rapid-developing industrial product distributer located in China, is focusing on equipment components systematic solution for manufacturer & maintenance business in mechanism transmission parts, electrical parts and pneumatic components etc.
Our team has more than 10 years' experience in design, process and sales in this industry. We commit to make continuously improving & innovation to meet customer's requirements and work closely with our partners to provide qualified parts with competitive price and best service to each customer.