Needle roller bearings are roller bearings that use cylindrical rollers; relative to their diameter, the rollers are both slender and long. These rollers are known as needles; despite their small cross-sectional area, the bearings still possess a high load-carrying capacity.
● Small size, high load capacity
● High rigidity + low inertia
● Lightweight and cost-effective
● Impact Resistance and Durability
Product Description
Needle roller bearings are roller bearings that use cylindrical rollers; relative to their diameter, the rollers are both slender and long. These rollers are known as needles; despite their small cross-sectional area, the bearings still possess a high load-carrying capacity. As needle roller bearings are fitted with slender, elongated rollers, they have a compact radial structure; when their inner diameter and load-carrying capacity are equivalent to those of other types of bearings, their outer diameter is smaller, making them particularly suitable for support structures where radial installation dimensions are restricted.
Features and Advantages
● Extremely compact with high space utilisation
For the same inner diameter and load capacity, these bearings feature the smallest outer diameter and a radial cross-sectional height approximately 40% lower than that of cylindrical roller bearings, making them ideal for confined installation spaces.
● Small size, high load capacity
With industry-leading load-carrying capacity per unit volume, they enable heavy-load support within lightweight structures.
● High rigidity + low inertia
High support rigidity and minimal deformation; low rotational inertia, facilitating high-speed operation, frequent starts and stops, and precise positioning.
● Lightweight and cost-effective
Compact structure and reduced material usage result in a lighter overall unit; for equivalent load-bearing capacity, the overall unit size can be reduced, lowering material and manufacturing costs.
● Impact Resistance and Durability
The fully-caged needle roller type offers exceptional impact resistance, making it suitable for applications involving vibration and shock; precision machining combined with high-quality materials ensures minimal wear and a long service life.
Product Applications
Widely used in gearboxes, differentials, robots, servo motors, machine tool spindles, office equipment, medical devices, construction machinery, agricultural machinery, textile machinery and more.
