51105 Single-Direction Thrust Ball Bearing For Instruments & Office Devices

As a key single-direction thrust ball bearing, the 51105 plays a vital role in various devices, reliably bearing axial loads to ensure stable operation and precise transmission.

I. Precise Dimensions

The 25mm inner diameter ensures a tight fit with matching shafts, minimizing energy loss. The 42mm outer diameter balances load capacity and space efficiency, while the 11mm height provides optimal room for internal components to operate smoothly.

II. Structural Design

Composed of a shaft washer, housing washer, steel ball rolling elements, and a sheet metal cage, the bearing efficiently handles unidirectional axial forces. The cage guides rolling elements to prevent collisions, enhancing stability and preventing dislodgement. Its separable components simplify maintenance—individual parts can be replaced without full disassembly.

III. Material & Craftsmanship

High-quality bearing steel, subjected to strict smelting and refining, delivers high hardness, strength, and wear resistance, ensuring durability under heavy loads. Precision-machined raceways and surfaces reduce friction and heat, boosting efficiency and extending service life.

IV. Key Advantages

• Strong Axial Load Capacity: Reliably supports heavy unidirectional forces in low-speed, high-load applications like small presses.
• Stable Operation: Minimizes vibration and noise, ideal for precision instruments requiring accurate measurements.
• Easy Maintenance: Separable parts reduce downtime and repair costs.

V. Applications

• Small Machinery: Motors, gearboxes in toys and household appliances.
• Instruments: Electronic scales, pressure gauges, and optical equipment.
• Office Devices: Printer paper feed systems and copier drum assemblies.
• Other Fields: Fitness equipment and small medical devices.

The 51105 bearing combines precision, durability, and versatility, making it indispensable for efficient, stable operation across industries.