Which situations are NAF needle roller bearings suitable for? In the bearing industry, there are various types of needle roller bearings, and the scope of application is as follows: Needle roller bearing manufacturers
(1) There are two types of bearings: perforated type and sealed type. Needle roller bearings with stamped outer rings do not have an inner ring, and the needles are in direct contact with the shaft surface, so the machining accuracy and heat treatment hardness of the shaft should be the same as the inner ring of the bearing.
Scope of application: Needle roller bearings with cages are suitable for high-speed and heavy loads, and are common in gearboxes of various vehicles. Cageless needle roller bearings are suitable for heavy-duty rotary conditions due to their full needle rollers. Such as aircraft fuselage, missile main wing shaft end, etc.
(2) Needle roller bearings with solid rings are Na type and RNA type.
Scope of application: Solid ring needle roller bearings are mainly used in machine tools and automobile gearboxes. Its advantage is that the radial section size is small and the radial load is large.
(3) Roller needle roller bearing
Scope of application: various industries use mechanical printing, feed, agriculture, numerical control equipment, guide rollers, conveyor lines, etc.
(4) Needle roller and cage assembly. Needle roller and cage assemblies are generally needle roller bearings without rings.
Scope of application: This bearing is mainly used for the big and small ends of transmissions, motorcycles, and automobile connecting rods. As the temperature inside the cylinder rises, the bearings should be resistant to high temperatures.
