Structural form of high-precision needle roller bearings

Only by inquiring about the product can better choose the product. There are several different layout modes for high-precision roller bearings. cylindrical roller factory can choose the most suitable bearing according to the different layout.

1. Needle roller bearings with drawn outer ring:

The drawn outer ring bearing is a needle roller bearing with two types: perforated type and sealed type. The drawn outer ring needle roller bearing has no inner ring, and the needle roller directly touches the surface of the shaft. Therefore, the machining accuracy and heat treatment hardness of the shaft should be similar to the inner ring of the bearing. Drawn cup needle roller bearings with connecting frame are suitable for high speed and heavy load, and are mostly used in gearboxes of machine tools, cars, motorcycles or textile machinery. Stamped ferrule needle roller bearings without a cage, due to the full needle rollers, are suitable for swaying working conditions under heavy loads. Such as the frame of the aircraft, the shaft end of the main wing of the missile, etc.

2. Solid ferrule needle roller bearings:

High Precision Needle Roller Bearings

Needle roller bearings with solid ferrules, the commonly used solid ferrule needle roller bearings are NA type and RNA type. Entity ferrule needle roller bearings are mostly used in machine tools and car gearboxes. Its advantages are that the radial section standard is small and the radial load it carries is large. Standard-type solid ferrule needle roller bearings have a connecting frame, so the speed is high, and it can meet the requirements of machine tools and car gearboxes.

3. Combined needle roller bearings:

Combined needle roller bearing is a combination of solid ring needle roller bearing, ball bearing and roller bearing.

4. Needle roller and connecting frame components:

Needle roller and connecting frame components are actually nsj bearing ferruleless needle roller bearings, which are mostly used for large and small ends of connecting rods of gearboxes, motorcycles and cars. Since the temperature in the cylinder rises, the bearing must be resistant to high temperature.