Precision Manufacturing
to 0.001mm Accuracy
High-performance electric spindles, linear guideways, ball screws, and precision bearings for CNC machine tools worldwide.
Linear Guideways
& Ball Screws
P/H/SP precision grades. Interchangeable with HIWIN, THK, NSK. Ground C3/C5 accuracy ball screws.
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Precision Bearings
P4/P2 ABEC-7/9 Grade
Angular contact ball bearings & cylindrical roller bearings for machine tool spindles. 10mm–500mm bore.
View Precision BearingsCore Product Range
High-precision components engineered for demanding CNC machine tool applications
Electric Spindles
0.001mm runout accuracy. 0.5–100kW. Up to 120,000 RPM. Machining, grinding, turning spindles.
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Linear Guideways
P/H/SP grades. 15–65mm rails. Ball & roller types. Interchangeable with major brands.
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Ball Screws
Ground C3/C5 & rolled C7 grades. Ø8–100mm. Single/double nut. DIN 69051.
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Precision Bearings
P4/P2 ABEC-7/9 grade. Angular contact & cylindrical roller. 10–500mm bore.
View SeriesHot Sale Products
Our most sought-after precision components trusted by 37 long-term clients worldwide
Angular Contact Ball Bearings
P5/P4/P2 (ABEC-5/7/9) precision grades, 15° & 25° contact angles, universal face-ground for matched sets — built for CNC spindle applications
Crossed Roller Bearings
CRBH, RA, RB, RE, RU series — high rigidity, compact design, P5/P4/P2 grades for rotary tables and robot joints
CNC Electrospindle
12–75kW synchronous motor spindles, 0.001mm runout, HSK/BT tool interfaces — for vertical & horizontal machining centers
Linear Guideway
P, H, SP precision grades, 15–65mm rails, ball & roller types — interchangeable with THK, HIWIN, IKO
Ball Screw
Ground C2/C3 accuracy, Ø8–100mm, single/double nut, internal/external return — interchangeable with THK, NSK, HIWIN
15 Years of Precision Engineering Excellence
Founded in 2012 and headquartered in Luoyang — one of China's most historic bearing manufacturing hubs — Luoyang Songju Science and Technology Co., Ltd. specializes in R&D, manufacturing, and sales of high-precision core components for CNC machine tools.
ISO 9001:2015
Certified quality management system
22,000 m² Facility
Advanced manufacturing workshops
10+ Senior Engineers
Multiple patents in spindle design
24h Response
Guaranteed technical support
Proven Results in the Field
Real customer outcomes with Luoyang Songju precision spindles and bearings.
Industry Recognition & Data
Backed by global industry standards and market research.
ISO 9001:2015
According to ISO, certified organizations achieve 85% higher customer satisfaction rates and 30% fewer defect incidents compared to non-certified manufacturers.
Grand View Research
According to Grand View Research, the global CNC machine tools market was valued at $52.7 billion in 2025 and is projected to grow at a CAGR of 5.8% through 2030.
0.001mm Runout
According to ISO 1940-1, precision spindles at balance grade G0.4 achieve vibration levels under 0.4 mm/s — a standard met by our electric spindle line.
10+ Countries
According to MarketsandMarkets, the global precision bearing market is expected to reach $54.4 billion by 2028, driven by demand across Asia-Pacific and European manufacturing hubs.
How to Choose the Right Electric Spindle for CNC Machining
Essential factors for spindle selection: power rating, speed range, torque characteristics, bearing types, cooling methods, and tool interface compatibility.
June 1, 2026
P4 vs P2 Bearing Precision Grades: Which Does Your Spindle Need?
P4 (ABEC-7) is the CNC spindle standard; P2 (ABEC-9) buys sub-micron runout down to 0.001 mm for grinding and ultra-precision.
September 1, 2026
HIWIN, THK & NSK Linear Guideway Interchange Guide
Size-by-size interchange cross-reference: Songju LG series vs HIWIN HG/HGW, THK SHS/HSR, NSK LH — what matches and how to order a drop-in swap.
September 1, 2026
Precision Ball Screw Selection Guide for CNC Machine Tools
Ground vs. rolled comparison, C2/C3/C5 accuracy grades, preload methods, lead selection, and application-specific recommendations.
June 25, 2026
CNC Components Spec Quick Reference
One-page spec sheet: spindles, guideways, ball screws, and P5/P4/P2 bearings — key numbers for OEMs and rebuilders.
September 1, 2026Frequently Asked Questions
Quick answers about products, ordering, and support.
What does Luoyang Songju manufacture?
Luoyang Songju manufactures precision CNC machine tool components: electric spindles (motorized spindles) with 0.001mm runout accuracy, linear guideways (P/H/SP grades), ground ball screws (C2/C3 accuracy), and P4/P2 precision bearings. ISO 9001:2015 certified, 22,000 m² facility in Luoyang, China.
Where is Luoyang Songju located?
Headquarters: No. 1 Wangcheng Road, Xigong District, Luoyang, Henan, China. Factory: No. 2 Penglai Road, National University Science & Technology Park, Jianxi District, Luoyang, Henan, China. Luoyang is one of China's most historic bearing manufacturing hubs.
What is the minimum order quantity?
We accept both OEM/ODM custom orders and standard product orders. Contact [email protected] for specific quantity and pricing inquiries. We provide pre-shipment inspection videos and 24-hour technical support.
How fast can you deliver?
Delivery timelines vary by product type and quantity. Standard models may ship within 2-4 weeks. Each project is assigned a dedicated order tracker. Contact our team for a specific lead time estimate.
Request a Quote Today
Get expert technical consultation and competitive pricing for your precision component requirements. 24-hour guaranteed response.