High Strength and Durability
The rolling process forms threads through plastic deformation, resulting in a continuous distribution of metal fibers. Compared to cut threads, the strength is increased by approximately 20%-30%, and fatigue resistance is superior.
High Precision and Surface Quality
Rolled threads have a high surface finish (up to Ra 0.8μm), and excellent dimensional consistency. They are suitable for mass production of high-precision transmission components (e.g., precision below C7 grade).
Cost-Effective and Efficient
The production efficiency is high (5-10 times faster than cutting), with material utilization exceeding 95%. This process is ideal for large-scale production, with costs significantly lower than grinding ball screws.
Adaptable to Various Materials
Can process materials such as carbon steel, alloy steel, stainless steel, etc. Some models can have chrome plating or nitriding on the surface to enhance wear resistance.
Limitations
Ultra-high precision (such as grades above C5) requires subsequent grinding. Large diameters (typically >50mm) or special threads (such as trapezoidal threads) may be limited.
Main Applications
Transmission and Positioning Systems
1.CNC Machine Tools / 3D Printers: Used as a substitute for ball screws, for precise positioning under medium to low loads.
2.Automation Equipment: Power transmission components in robotic arms, linear modules.
Heavy-duty and General Machinery
3.Automobile Steering Systems: Some models use rolled ball screws to transmit steering force.
4.Lifting Mechanisms: For devices like medical beds or stage equipment.
General Industrial Applications
5.Fastening and Adjustment: Adjustment screws in valves, fixtures, or tensile members in building structures.
Special Fields
6.Aerospace: Lightweight alloy ball screws used in auxiliary mechanisms (requiring surface strengthening treatment).
Rolled ball screws are known for their cost-effectiveness and reliability, making them suitable for most medium-precision, medium-to-high load transmission applications. For extreme precision or oversized specifications, grinding processes or custom solutions are required.
