Products
Miniature Thrust Bearings
Product Overview
Miniature Thrust Bearings are compact axial-load bearings designed for small mechanisms where force acts primarily along the shaft axis. Their washer-and-ball-cage construction provides controlled axial support with low friction, making them suitable for adjustment mechanisms, compact actuators, instruments, and precision assemblies with limited radial space.
Single-direction miniature thrust bearings support axial load in one direction and require suitable shaft and housing support. Correct alignment, washer orientation, preload, speed, lubrication, and mounting accuracy are important because thrust bearings are not intended to carry significant radial load.
ETM supplies miniature thrust bearings in standard and project-specific sizes with chrome steel or stainless steel options, different cage designs, precision levels, lubrication choices, and packaging. OEM support covers washer dimensions, ball size, axial clearance, preload targets, material, grease, marking, and stable batch supply.
Technical Specifications
| Product Type | Miniature single-direction thrust ball bearings |
| Primary Load | Axial load in one direction |
| Radial Load | Not designed for significant radial loading |
| Construction | Shaft washer, housing washer, and ball-cage assembly |
| Material Options | Chrome steel, stainless steel, and application-specific cage materials |
| Precision | Standard and customized dimensional and running accuracy |
| Lubrication | Low-torque, temperature-specific, food-grade, or application-specific grease |
| Mounting Requirements | Accurate alignment, correct washer orientation, and suitable supporting surfaces |
| Typical Benefits | Compact axial support, low friction, controlled positioning, simple assembly |
| OEM Support | Dimensions, washer design, material, preload, clearance, grease, marking and packaging |
Key Features
- Dedicated axial-load support – designed for compact mechanisms with force acting primarily along the shaft axis.
- Small installation envelope – suitable for miniature actuators, adjustment mechanisms, instruments, and precision equipment.
- Low-friction ball construction – supports smooth axial motion and controlled positioning when correctly mounted.
- Material and lubrication options – chrome steel, stainless steel, and application-specific grease are available.
- Stable washer geometry – controlled dimensions support repeatable assembly and axial alignment.
- OEM engineering support – washer dimensions, preload, clearance, material, lubrication, marking, and packaging can be customized.
Applications
Miniature Thrust Bearings are used in compact mechanisms that require controlled axial support rather than radial-load capacity. Typical fields include office equipment, medical equipment, robotics, power tools, and automotive actuators or control mechanisms.
Technical Resources
Whether you are an engineer, procurement manager, or equipment maintenance professional, here you will find in-depth content covering bearing operating principles, technical parameter interpretation, industry application analysis, and selection logic — helping you build a comprehensive understanding of bearing products and make more informed decisions in real-world applications.
FAQs
What loads do miniature thrust bearings support?
They are designed primarily for axial load acting along the shaft. Single-direction designs support axial force in one direction and require correct washer support.
Can miniature thrust bearings carry radial loads?
They are not intended for significant radial load. A separate radial bearing should be used when the assembly must support both radial and axial forces.
How should thrust bearing washers be installed?
The shaft washer and housing washer must be fitted to their correct supporting surfaces with accurate alignment, suitable flatness, and the required axial clearance or preload.
What affects miniature thrust bearing speed?
Speed capability depends on bearing size, axial load, alignment, cage design, washer accuracy, lubrication, preload, heat dissipation, and mounting conditions.
Where are miniature thrust bearings commonly used?
Typical uses include office equipment, medical devices, robotics, power tools, automotive actuators, adjustment mechanisms, instruments, and compact axial positioning systems.
Can ETM customize miniature thrust bearings?
Yes. ETM supports custom dimensions, washer geometry, material, cage, precision, axial clearance, preload, lubrication, marking, packaging, and stable batch supply.
Get a Fast Response from Our Team
Share your miniature thrust bearing requirements, including shaft size, available space, axial load, speed, direction of load, washer support, alignment, preload, lubrication, material, packaging, and OEM quantity.
ETERNUM MOTION TECHNOLOGY