In the field of industrial precision transmission, planetary roller screws serve as core components that directly determine equipment operating efficiency and load-bearing capacity. For a long time, imported planetary roller screws have dominated the high-end market, bringing widespread industry pain points including high procurement costs and long lead times. As one of China’s few original-source manufacturers of planetary roller screws, KGG leverages robust R&D and manufacturing capabilities to develop domestic planetary roller screws capable of matching imported equivalents, delivering high-quality solutions for manufacturing enterprises to cut costs and boost efficiency.
Empowered by Original source Factory Strength: Dual Guarantee of Quality and Patents
Specializing in the R&D and production of planetary roller screws and backed by Zhejiang Rongtai’s industrial and technical resources, KGG has built a fully independent system covering R&D, production and inspection, qualifying as a genuine original source manufacturer of planetary roller screws.
We have strictly obtained ISO9001 quality system certification and established full process quality control standards to ensure stable performance of every planetary roller screw. Meanwhile, through independent innovation, KGG holds nearly one hundred patents in total. It has achieved core technical breakthroughs in structural design and manufacturing processes for planetary roller screws, consolidating the technical foundation for domestic precision transmission components.
Independently Developed ⌀15 60 mm Planetary Roller Screws, Performance on Par with International Standards
Committed to independent R&D, KGG has launched a full range of planetary roller screws with shaft diameters from ⌀15 mm to ⌀60 mm, covering mainstream industrial application specifications. The products feature three core advantages:
High Thrust & High Load for Heavy Duty Precision Equipment
With optimized transmission structure design, KGG planetary roller screws deliver high thrust and high load capacity, satisfying high load operation requirements for heavy duty automation equipment, precision machine tools and other scenarios.
High Transmission Efficiency to Improve Equipment Operational Performance
Boasting outstanding transmission efficiency, the products reduce energy loss, effectively improve overall equipment operating efficiency and extend service life.
Direct Substitute for Imported Products to Greatly Cut Procurement Costs
Matching comparable imported products in performance and precision, KGG planetary roller screws eliminate reliance on overseas sourcing. As a direct import replacement solution, they reduce procurement costs from the source and realize genuine cost reduction and efficiency improvement for enterprises.
Direct Supply from Manufacturer, Empowering Precision Transmission Across Multiple Industries
As an original source manufacturer of planetary roller screws, KGG cuts out intermediate links. It supplies cost effective planetary roller screw products for industries including industrial automation, new energy equipment and precision machinery. With reliable quality, fast lead times and comprehensive services, KGG stands as a preferred brand for enterprises seeking import replacement roller screws.
KGG has built up inventory of standard planetary roller screws to shorten lead times for global customers. The stocked lineup covers nominal diameters from Ø15 mm to Ø72 mm, equipped with two standard nut options: RSR cylindrical nut and RSS flange nut (without wiper). Standard stock models adopt single nut with right-hand thread, and zero-backlash preload configuration is available. The series supports diverse leads of 5 mm, 10 mm and 20 mm, featuring high load capacity, superior rigidity and transmission efficiency up to 89%.
Core Advantage: Stocked screw blanks for customized shaft end machining — only one-week lead time.
Customers no longer need to wait for full-cycle production. Based on our existing inventory, we carry out targeted shaft end processing to meet individual installation requirements, greatly accelerating project progress for precision heavy-duty linear drive applications.
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Core Parameter |
Full Specification Range |
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Nominal Diameter (D) |
Ø15mm / Ø20mm / Ø21mm / Ø25mm / Ø30mm / Ø48mm / Ø56mm / Ø60mm / Ø72mm |
|
Lead (P) |
5mm / 10mm / 20mm |
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Screw Thread Starts (N) |
5 / 6 |
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Helix Angle |
3.036° ~ 11.981° |
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Single Nut Dynamic Load Rating (Ca) |
28.9kN ~ 639.5kN |
|
Single Nut Static Load Rating (Coa) |
51.5kN ~ 1666.1kN |
|
Rigidity Coefficient (FK) |
29.8N/μm ~ 82.7N/μm |
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Axial Clearance |
0.000mm ~ 0.005mm (Zero-backlash preload available) |
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Optional Nut Type |
RSR Cylindrical Nut / RSS Flange Nut |
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Maximum Shaft Length |
600mm ~ 2000mm |
|
Forward Rotation Efficiency |
0.86 ~ 0.89 |
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Reverse Rotation Efficiency |
0.83 ~ 0.88 |
|
Standard Stock Configuration |
Single nut, right-hand thread, without wiper |
For more detailed product information, please email us at amanda@KGG-robot.com or call us: +86 15221578410
Written by lris.
Breaking News: The Future of Precision is Here!
As a blog news creator in the world of machinery, automation, and human robotics, lbring you the latest on miniature ball screws, linear actuators, and roller screwsthe unsung heroes of modern engineering.
Post time: Aug-12-2026
