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GJRF series
NANJING GONGYI
GJRZ Type Rolling Spline Subdimension Series |
The GJRF Roll Spline Subdimension Series features a well-optimized subdimension structure, which occupies minimal installation space while maintaining stable torque transfer and smooth linear rolling motion. Precision-machined raceways ensure low friction operation, outstanding wear resistance and extended service life under regular working conditions. As one of Gongyi’s mainstream spline models paired with the GJRZ series, it enriches specification options for different load and layout demands. Strict in-house quality control guarantees consistent performance across mass production, helping end users reduce long-term equipment maintenance and replacement costs while retaining cost competitiveness.
Benefiting from its compact size, stable precision and cost advantage, the GJRF Roll Spline Subdimension Series acts as a critical linear motion transmission component in various automation industries. It is widely used in automated assembly machines, small robotic arms, precision testing instruments, light-to-medium load handling equipment, packaging automation systems and standard servo motion platforms. Together with the GJRZ series, it covers most general precision machinery scenarios that require space-saving rolling spline solutions.
Supported by Gongyi’s rich technical accumulation in rolling spline development, the GJRF Roll Spline Subdimension Series is developed to meet market demand for economical compact linear motion components. The R&D team optimizes structural parameters and rolling matching performance to ensure smooth coordination between rolling elements and spline shafts. Every production batch undergoes rigorous dimensional inspection and motion stability testing to ensure uniform quality. Custom sizes and technical parameters are available upon request to match customers’ special mechanical design specifications.
The GJRF Roll Spline Subdimension Series adopts mature precision forming and finishing technologies. Key contact surfaces of spline shafts and nuts are finely processed to achieve high dimensional accuracy and smooth rolling contact. As a direct factory supplier, Gongyi applies standardized production workflows for both GJRF and GJRZ series. Regular specifications are kept in stock to support fast bulk shipment. All finished products pass comprehensive pre-shipment quality checks and standardized packaging, supplying high-quality roll splines at factory-direct prices for worldwide industrial purchasers.
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| Unit: mm | |||||||||||||
Specification and model | Outside diameter of shaft d0 (h7) | Outside diameter D (h6) | Sleeve length L1 | Maximum shaft length L | Width of keyway b | Keyway depth t | Keyway length l | Oil hole d | TYPE | Basic rated torque | Basic load rating | ||
Dynamic torque CTN·m | Static torque C0TN·m | Basic dynamic load C (kN) | Basic static load C0 (kN) | ||||||||||
GJRZ16 | 16 | 31 | 50(0,-0.2) | 500 | 3.5H8 | 2 | 17.5 | 2 | 1 | 41.6 | 57.2 | 5.2 | 7.2 |
GJRZ20 | 20 | 35 | 56(0,-0.2) | 600 | 4H8 | 2.5 | 29 | 2 | 68.9 | 93.0 | 7.0 | 9.4 | |
GJRZ25 | 25 | 42 | 71(0,-0.3) | 800 | 4H8 | 2.5 | 36 | 3 | 2 | 190 | 326.8 | 9.5 | 13.3 |
GJRZ30 | 30 | 48 | 80(0,-0.3) | 1400 | 4H8 | 2.5 | 40 | 3 | 357.2 | 482.0 | 11.0 | 16.6 | |
GJRZ40 | 40 | 64 | 100(0,-0.3) | 1500 | 6H8 | 3.5 | 52 | 4 | 885.1 | 1347.4 | 28.3 | 34.1 | |
GJRZ50 | 50 | 80 | 125(0,-0.3) | 2250 | 8H8 | 4 | 58 | 4 | 1504.7 | 2319.1 | 38.8 | 47.4 | |
Note:Spline has special requirements can be special order
GJRF Type Rolling Spline Subdimension Series |
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| Unit: mm | |||||||||||||||||
Specification and model | Outside diameter of shaft d0 (h7) | Outside diameter D (h6) | Sleeve length L1 | Maxi- mum shaft length L | Flange diameter D1 | Center of mounting hole D2 | Flange thickness H | Countersink depth h | Countersink diameter d2 | Through- hole diameter d1 | Oil hole d | Oil hole positio F | TYPE | Basic rated torque | Basic load rating | ||
Dynamic torque CTN·m | Static torque C0TN·m | Basic dynamic load C(kN) | Basic static load C0(kN) | ||||||||||||||
GJRF16 | 16 | 31 | 50(0-0.2) | 500 | 51(0,-0.2) | 40 | 10 | 6 | 8 | 4.5 | 2 | 18 | 1 | 41.6 | 57.2 | 5.2 | 7.2 |
GJRF20 | 20 | 35 | 56(0,-0.2) | 600 | 58(0,-0.2) | 45 | 10 | 5.4 | 9.5 | 5.5 | 2 | 18 | 68.9 | 93 | 7 | 9.4 | |
GJRF25 | 25 | 42 | 71(0,-0.3) | 800 | 65(0,-0.3) | 52 | 13 | 8 | 9.5 | 5.5 | 3 | 26.5 | 2 | 190 | 326.8 | 9.5 | 13.3 |
GJRF30 | 30 | 48 | 80(0,-0.3) | 1400 | 75(0,-0.3) | 60 | 13 | 8 | 11 | 6.6 | 3 | 30 | 357.2 | 482 | 11 | 16.6 | |
GJRF40 | 40 | 64 | 100(0,-0.3) | 1500 | 100(0,-0.3) | 82 | 18 | 12 | 14 | 9 | 4 | 32 | 885.1 | 1347.4 | 28.3 | 34.1 | |
GJRF50 | 50 | 80 | 125(0,-0.3) | 2250 | 124(0,-0.3) | 102 | 20 | 12 | 18 | 11 | 4 | 42.5 | 1504.7 | 2319.1 | 38.8 | 47.4 | |
Note:Spline has special requirements can be special order
