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GJRZ series
NANJING GONGYI
GJRZ Type Rolling Spline Subdimension Series |
The GJRZ Roll Spline Subdimension Series features a refined subdimension structure that saves installation space while maintaining dependable torque transfer and smooth linear movement. Manufactured under strict in-house quality standards, it balances consistent operational stability and excellent cost performance. As one of Gongyi’s core roll spline lines alongside the GJRF series, it provides buyers with more model selections to match different load and layout requirements. The precision-machined rolling raceway ensures low-friction motion, good wear resistance and long service life under regular operating conditions, helping end equipment cut long-term maintenance and replacement expenses.
Thanks to its compact footprint, stable precision and favorable price advantage, the GJRZ Roll Spline Subdimension Series functions as a key linear motion transmission component across multiple automation sectors. It is widely applied in automated assembly equipment, small robotic arms, precision testing instruments, light-to-medium load handling machinery, packaging automation and standard servo motion platforms. Combined with the GJRF series, it fulfills varied specification demands for general precision mechanical systems requiring compact spline solutions.
Backed by Gongyi’s accumulated technical expertise in rolling spline development, the GJRZ Roll Spline Subdimension Series is engineered targeting market demand for compact, cost-effective linear motion components. The R&D team optimizes structural parameters and rolling matching performance to guarantee stable coordination between rolling elements and spline shafts. Every production batch passes rigorous dimensional inspection, motion performance testing and quality verification to secure stable consistency in mass production. Custom sizes and technical parameters are available upon request to satisfy customers’ unique equipment design needs.
The GJRZ Roll Spline Subdimension Series is produced with mature precision forming and finishing processes. Critical contact surfaces of spline shafts and nuts are finely processed to ensure high dimensional accuracy and smooth rolling contact. As a direct factory supplier, Gongyi runs standardized production workflows for both GJRF and GJRZ series. Regular specifications are kept in stock to support fast bulk delivery. All finished products undergo full pre-shipment quality checks and standardized packaging, delivering high-quality roll splines at direct factory prices to global 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
