Miniature Ball Screw Slide And Lead Screw Bearing is a high-precision component used in miniature drive systems, miniature lead screw is widely used in small automation equipment, medical equipment, laboratory instruments and precision machinery. Miniature lead screw and ball screw slide is closely matched to achieve efficient linear motion and precise power transmission in small spaces.
Ball screw feature
High Reliability
TBI MOTION or ERSK precision lead screw has very stringent quality control standards covering every production process. With proper lubrication and use, trouble-free operation for an extended period of time is possible.
Smooth Operation
The high efficiency of precision lead screw is vastly superior to conventional screws. The torque required is less than 30%. Linear motion can be easily changed from rotary motion.
High Rigidity and Preload
The axial play in TBI MOTION or ERSK precision ball screws may be reduced to zero by preloading and a light smooth operation is still possible. Therefore, both low torque and high rigidity can be obtained simultaneously.TBI MOTION or ERSK linear guide ball screw have gothic arch groove profiles which allow these conditions to be achieved.
Circulation Method
Ball return tube method.(V,E,S,Y type);Ball defelector method.(I,U,M,K type)
High Durability
Rigidly selected materials, intensive heat treating and processing techniques, backed by years of experience, have resulted in the most durable ball screw slide and lead screw bearing manufactured.
Ball screw slide is made of screw, nut and ball. The function of ball screw slide is to turn the rotary motion into liner motion, which is a further extension and development of ball screw slide. With little friction, the precision lead screws are widely used in various industrial equipment and precision instruments.
The miniature lead screw is a drive element designed for small machines to convert rotary motion into linear motion. Compared to standard size precision lead screw, miniature lead screws have smaller dimensions and higher accuracy, and miniature lead screws are suitable for applications with very high precision requirements, such as miniature CNC machine tools, optical equipment, and biomedical instruments. Miniature lead screws provides smooth, backlash-free motion control through a threaded and nutted fit, and extends the life of the equipment due to lower friction.
A ball screw slide is an assembly that combines a linear guide ball screw with a sliding table for precise control of linear motion. The precision lead screw reduces friction by rolling the balls between the threads and the slide carries and moves the load. Ball Screw Slide Stages offer higher transmission efficiency and positioning accuracy than traditional sliding stages, and therefore perform particularly well in applications.
Lead screw bearing is a key component in the miniature lead screw transmission system, responsible for supporting and guiding the rotational movement of the precision lead screw. By reducing the friction between the precision lead screw and other components, it improves the operating efficiency of the system and ensures the smoothness of the precision lead screw at high speeds. High-quality leads crew bearings not only enhance the precision of the transmission system, but also effectively reduce the wear and tear of the system during operation and extend the service life of the equipment.
The combination of miniature balls crew stages and lead screw bearings allows the entire drive train to be controlled with high precision and efficiency in a small space. This compact design of linear guide ball screw is particularly suitable for medical equipment, laboratory instruments and small automation devices. Miniature linear guide ball screw are able to perform complex operations in limited space and this miniature lead screw bearing provides stable performance over a long period of time.
Load capacity is determined by dynamic (C) and static (C₀) load ratings. For example: A 6205 deep groove ball bearing has a dynamic load rating of 14 kN, suitable for small motors. For heavy loads, choose tapered roller bearings (e.g., 32208 with C=90 kN). Recommendation: Share your equipment’s load analysis for optimal bearing selection.
Materials: Stainless steel (440C/316) or coatings (nickel plating, DLC). Seals: Double rubber seals (2RS) or PTFE seals. Example: Seawater pumps often use 316 stainless steel bearings with lifelong grease.
Speed limits depend on bearing type and lubrication: Standard 608ZZ ball bearings: ~18,000 rpm. Hybrid ceramic bearings (Si3N4 balls): 30–50% higher speeds. Solution: For high-speed applications, opt for oil lubrication or low-friction design.
Theoretical lifespan: Based on load calculations (see Q1). Real-world factors: Lubrication intervals (e.g., grease replenishment every 100km). Mounting surface flatness (≤0.01mm/m required). Tool: Free lifespan calculation software available.
Must-check: Slider hole spacing (e.g., 45mm×45mm). Rail width (15/20/25mm, etc.). Slider height (impacts machine space). Pro tip: Old slider model numbers are often engraved on the side.
Of course, we provide customized service, including add customers’ logo on the products, customized size of linear guide rail.
It according to the products, we usually can adjust the quantity according to customers’ request.
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