Precision Machine Tool Components — Manufactured to 0.001mm Accuracy
Luoyang Songju Science and Technology Co., Ltd. (LYJSD) manufactures high-precision core components for CNC machine tools from our 22,000 m² facility in Luoyang, China — one of the country's most historic bearing manufacturing hubs. We deliver P4/P2 (ABEC-7/9) precision bearings, motorized spindles with 0.001mm runout accuracy, linear guideways, and ground ball screws to CNC machining centers, grinding machines, and turning centers worldwide. In 2025, over 5,000 precision units were delivered with a 99.5% quality acceptance rate across 10+ countries.
15 Years of Expertise
Founded in 2012, our engineering team includes 10 senior engineers and a chief engineer who holds multiple patents in electric spindle design and led development of China's first central-coolant high-power machining center spindle.
ISO 9001:2015 Certified
Every product undergoes rigorous dynamic testing and dimensional inspection before shipment. We provide pre-shipment inspection videos and assign a dedicated order tracker to every project. 24-hour guaranteed technical response.
OEM/ODM Custom Engineering
Custom spindle and bearing solutions engineered to your specifications. Research partnerships with Henan University of Science and Technology, Dalian University of Technology, and Harbin Institute of Technology.
Core Product Range
Electric Spindles (Motorized Spindles)
Runout accuracy 0.001mm. Power range 0.5–100 kW. Speeds up to 120,000 RPM. Types: machining center spindles, grinding spindles (internal/external/vertical), turning-milling spindles, high-speed motors. Rolling bearing and air bearing options.
View Electric Spindles →Precision Bearings
P4/P2 grade (ABEC-7/9) angular contact ball bearings and cylindrical roller bearings. Available in sizes from 10mm to 500mm bore diameter. High-speed, high-rigidity designs for spindle applications. Ceramic ball (hybrid) bearing options.
View Precision Bearings →Linear Guideways
P/H/SP precision grades. Ball-type and roller-type. Sizes 15–65mm rail width. Interchangeable with HIWIN, THK, NSK. Standard and long-block carriage options. Preload classes: light, medium, heavy.
View Linear Guideways →Ball Screws
Ground (C3/C5) and rolled (C7) accuracy grades. Diameters 8–100mm. Single and double nut configurations. With or without preload. DIN 69051 standard. End machining to customer drawings available.
View Ball Screws →Trusted by 37 Long-Term Clients in 10+ Countries
99.5% quality acceptance rate | 5,000+ precision units delivered in 2025 | 24-hour guaranteed response
Request a Quote TodayEmail: jin@luoyangsongju.com | Tel: +86-18697796262
