Convex Linear Motion Spline

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GJH Convex Linear Motion Spline

The GJH convex linear motion spline is characterized by convenient assembly and compact structure. Since it operates with zero clearance or interference fit in the rotational direction, the convex linear motion spline can maintain high speed motion and rotation. Held by the retainer, the balls will not run out even if the spline shaft is pulled out of the nut. In addition, the linear motion spline has a long working life and high rigidity, for the spline bearing is made of HRC58 quenched alloy steel, and its spline nut is made of HRC58 quenched alloy steel or alloy structural steel that is carburized and quenched.

The convex linear motion spline comes with square spline nut. The outside surface of the spline shaft is designed with three equidistantly spaced crests, and on both sides of each crest, two rows of balls are arranged. Altogether there are six rolls of balls.

The GJH convex linear motion spline is suitable for use in spindle of spot welding machine, tool post, indexing shaft, arms of industrial robot, automatic loader, measuring instrument, wire winder, main shaft of automatic plotting machine, and main shaft of packaging machine, etc.

Technical Specifications of the GJH Convex Linear Motion Spline (Unit: mm)
Model H W L Max. Spline Shaft Length L1 F W1 B C M K N T h Oil cup Basic Torque Rating
Dynamic Torque CT (Nm) Static Torque COT(Nm)
GJH15 29 34 40 300 1 5 ±0.1 1 7 ±0.2 26 26 M4 Depth 10 23 9 6 5 Φ4 forced filling oil cup 27 45
GJH20 38 48 60 500 2 0 ±0.1 2 4 ±0.1 35 35 M6 Depth 12 29 12 7 6 Straight through filling M6 76.5 127.8
GJH25 47 60 70 700 2 5 ±0.1 30 ±0.1 40 40 M8 Depth 16 35 16 10 7 Straight through filling M6 152 228.6
GJH30 57 70 80 1000 3 0 ±0.1 3 5 ±0.1 50 50 M8 Depth 16 42 19 10 7 Straight through filling M6 265.2 394.2
GJH40 70 86 102 12000 3 8 ±0.1 4 3 ±0.1 60 60 M10 Depth 20 58 26 15 10 Straight through filling M6 609 852
GJH50 86 100 112 1400 4 8 ±0.1 5 0 ±0.1 75 75 M1 Depth 25 86 32 15 10 Straight through filling M6 1133 1500

As an experienced convex linear motion spline manufacturer based in China, we also supply concave linear motion spline, ball screw, radial linear guideway, X-Y axis CNC worktable, and much more.

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Other Products
  • GJZG Concave Linear Motion Spline As the GJZG concave linear motion spline can achieve zero clearance, balls are capable of transmitting the toque generated from the spline nut or the spline shaft evenly and smoothly. Should the spline shaft be pulled out of the nut, the ball will stay in its place, due to the use of retainers.
  • GJFG Concave Linear Motion Spline The GJFG concave linear motion spline is commonly used in the spindle of spot welding machine, tool post, indexing shaft, arms of industrial robot, automatic loaders, measuring instrument, main shaft of automatic plotting machine, wire winders, and main shaft of packaging machine, etc.