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GJAIIH series
NANJING GONGYI
GJAIIH Roll Spline Subdimension Series |
The GJAIIH Roll Spline Subdimension Series achieves torque transmission via ball rolling contact on a precision-ground shaft surface, enabling smooth and reliable linear motion. Its compact subdimension design effectively saves installation space without sacrificing overload capacity and power transmission performance. There are two configurable versions: convex spline and concave spline. The convex spline boasts superior radial load resistance and higher torque capacity, making it more suitable for demanding working conditions. The three-rail layout on the spline shaft outer circle creates six independent load paths together with the protrusions on the spline nut. This well-structured ball circulation design reduces local stress concentration, lowers component wear, and significantly prolongs the service cycle of the spline assembly.
With compact footprint, stable power transmission and overload resistance, the GJAIIH Roll Spline Subdimension Series serves as a vital linear motion component for multiple precision mechanical systems. It is widely applied in automated assembly machinery, small robotic manipulators, precision testing instruments, light and medium-duty material handling equipment, packaging automation devices, and customized automation systems that require integrated linear movement and torque output.
The structural design of the GJAIIH Roll Spline Subdimension Series is developed based on mature rolling spline motion principles. The engineering team optimizes the three-rail and six-load-path structure to realize balanced load distribution and smooth rolling performance, and differentiates the performance parameters of convex and concave splines to match various load requirements. Every batch of products undergoes strict quality inspections, including shaft surface precision detection, load performance testing and motion stability verification, to ensure consistent quality in mass production. Customized dimensions and technical parameters can be developed to meet customers’ special mechanical design requirements.
The GJAIIH Roll Spline Subdimension Series adopts precision grinding treatment for the spline shaft surface to meet high flatness and smoothness standards required for ball rolling. The rails on the shaft and protrusions of the spline nut are precisely machined to form stable six load paths and guarantee steady ball circulation. Standard convex and concave spline models are produced under standardized production workflows. The factory supports flexible bulk order scheduling. All finished products pass comprehensive pre-shipment quality inspection and standardized packaging, providing dependable motion transmission components for global buyers.
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| Unit: mm | ||||||||||||||||||
Code and | H W L | Max.length | F | W₁ | B | C | M | K | T | h | Oil cup. | Standard rated | Basic rated load | |||||
Dynamic | Stationary | Dynamic load C KN | Static load CoKN | |||||||||||||||
GJAIIH15 | 29 | 34 | 40 | 400 | 15±0.1 | 17±0.1 | 26 | 26 | M4 depth | 23 | 9 | 6 | 5 | 04 forced | 38.9 | 105.9 | 5.5 | 13.3 |
GJAIIH20 | 38 | 48 | 60 | 600 | 20±0.1 | 24±0.1 | 35 | 35 | M6 depth | 29 | 12 | 7 | 6 | straight- | 100 | 270.5 | 10.7 | 25.4 |
GJAIIH25 | 47 | 60 | 70 | 800 | 25±0.1 | 30±0.1 | 中40 | 40 | M8 depth | 35 | 16 | 10 | 7 | straight- | 152.0 | 345.0 | 13.0 | 26.0 |
GJAIIH30 | 57 | 70 | 80 | 1400 | 30±0.1 | 35±0.1 | 50 | 50 | M8 depth | 42 | 19 | 10 | 7 | straight- | 288.9 | 613.2 | 19.3 | 36.1 |
GJAIIH40 | 70 | 86 | 102 | 1500 | 38±0.1 | 43±0.1 | 60 | 60 | M10 | 58 | 26 | 15 | 10 | straight- | 1048.0 | 2200.7 | 34.9 | 65.5 |
GJAIIH50 | 86 | 100 | 112 | 1500 | 48±0.1 | 50±0.1 | 75 | 75 | M12 | 74 | 32 | 15 | 10 | straight- | 2135.9 | 4172.9 | 44.9 | 82.9 |