The rolling element is a centripetal rolling bearing of cylindrical rollers. The internal structure of cylindrical roller bearings adopts a parallel arrangement of rollers, with spacing retainers or isolation blocks installed between the rollers to prevent tilting or friction between the rollers, effectively preventing an increase in rotational torque.

Product Introduction

The cylindrical roller and raceway are linear contact bearings. Large load capacity, mainly bearing radial loads. The friction between the rolling element and the collar edge is small, suitable for high-speed rotation. According to the presence or absence of ribs on the ring, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a separable structure with inner and outer rings.

Cylindrical roller bearings without retaining edges on the inner or outer rings can move relative to the axial direction, so they can be used as free end bearings. A cylindrical roller bearing with double ribs on one side of the inner and outer rings, and a single rib on the other side of the ring, which can withstand a certain degree of axial load in one direction. Generally, steel plate stamped cages or copper alloy solid cages are used. But some also use polyamide shaped cages.

Product characteristics

1. The roller and raceway are in line contact or repaired line contact, with a large radial bearing capacity, suitable for bearing heavy loads and impact loads.

2. Low friction coefficient, suitable for high speeds, with limit speeds close to deep groove ball bearings.

3. The N-type and NU type can move axially and adapt to changes in the relative position of the shaft and casing caused by thermal expansion or installation errors. They can be used as free end supports.

4. The machining requirements for the shaft or seat hole are high, and the relative deviation of the outer ring axis after bearing installation should be strictly controlled to avoid contact stress concentration.

5. The inner or outer ring can be separated for easy installation and disassembly.

The cylindrical roller is in line contact with the raceway and has a large radial load capacity. Suitable for withstanding heavy loads and impact loads, as well as high-speed rotation.

The raceway and rolling body of cylindrical roller bearings are geometrically shaped. After improved design, it has a high load-bearing capacity. The new structural design of the retaining edge and roller end face not only improves the axial load-bearing capacity of the bearing, but also improves the lubrication conditions in the contact area between the roller end face and the retaining edge, improving the service performance of the bearing.

Product Applications

Large and medium-sized electric motors, locomotives and vehicles, machine tool spindles, internal combustion engines, generators, gas turbines, reducers, rolling mills, vibrating screens, and lifting and transportation machinery.