Single Row Cylindrical Roller Bearings

Single row cylindrical roller bearings are a kind of cylindrical roller bearings manufactured with snap ring grooves on the outer rings. This design simplifies the bearing joint as the bearings are located in the housing using the snap rings. These single-row cylindrical roller bearings feature separable bearing rings, rollers, and cage assembly units. The design helps simplify mounting and dismounting, particularly when load conditions require both rings to have an interference fit.

Product parameter

Boundary dimensions
(mm)
Load ratings
(KN)
Limiting speeds
(r/min)
Mass
(kg)
Bearing NO.
d D B Cr Cor Grease oil HZPT
15 35 11 12.5 10.2 22000 26000 0.047 NU 202 E
15 35 11 12.5 10.2 22000 26000 0.048 NJ 202 E
17 40 12 17.2 14.3 19000 22000 0.068 NU 203 E
17 40 12 17.2 14.3 19000 22000 0.07 NJ 203 E
17 40 12 17.2 14.3 19000 22000 0.072 NUP 203 E
17 40 12 17.2 14.3 19000 22000 0.066 N 203 E
17 40 16 23.8 21.6 19000 22000 0.087 NU 2203 E
17 40 16 23.8 21.6 19000 22000 0.093 NJ 2203 E
17 40 16 23.8 21.6 19000 22000 0.097 NUP 2203 E
17 47 14 24.6 20.4 15000 20000 0.12 NU 303 E
17 47 14 24.6 20.4 15000 20000 0.12 NJ 303 E
17 47 14 24.6 20.4 15000 20000 0.12 N 303 E
20 47 14 25.1 22 16000 19000 0.11 NU 204 EM
20 47 14 25.1 22 16000 19000 0.11 NJ 204 EM
20 47 14 25.1 22 16000 19000 0.12 NUP 204 EM
20 47 14 25.1 22 16000 19000 0.11 N 204 EM
20 47 18 29.7 27.5 16000 19000 0.14 NU 2204 EM
20 47 18 29.7 27.5 16000 19000 0.14 NJ 2204 EM
20 52 15 35.5 26 15000 18000 0.15 NU 304 EM
20 52 15 35.5 26 15000 18000 0.15 NJ 304 EM

Series of Single row cylindrical roller bearings

Popular types of Single row cylindrical roller bearings:

  • N
  • NJ
  • NU
  • NUP

Bearings of N design are single row cylindrical roller bearings with 2 fixed ribs on the inner ring that retain the rollers and cage and 1 smooth outer ring. This design allows an axial displacement within certain limits of the shaft about the housing. Therefore, N Series rolling bearings are used in non-locating bearing units. Also, the N Series bearings have virtually no thrust capacity. They are single-row cylindrical roller bearings with 2 fixed ribs on the outer ring and a fixed rib on the inner circle, which can guide the shaft in a single direction (axially).

Features of Single row cylindrical roller bearings

  • Low friction (Roller end/flange contact area)
    The open flange design, roller end design, and surface finish promote lubricant film formation, resulting in lower friction and higher axial load carrying capacity.
  • Long service life
    The logarithmic roller profile reduces edge stresses at the roller/raceway contact and sensitivity to misalignment and shaft deflection.
  • Enhanced operational reliability
    The surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.
  • Separable and interchangeable
    The separable components of cylindrical roller bearings are interchangeable. This facilitates mounting and dismounting, as well as maintenance inspections.
  • High-speed capability
    The cage designs suit high speeds, rapid accelerations, and peak loads.

Applications of Single row cylindrical roller bearings:

Single Row Cylindrical Roller Bearings are designed to support heavy radial loads and are some of the most common approaches used worldwide. These roller bearings consist of an Outer Race, Bronze or Steel Cage, a complement of rollers, and usually an Inner Race. The use of Single row cylindrical roller bearings has benefited many industries:

  • pumps and compressors
  • mechanical presses
  • electric motors
  • gearboxes
  • traction motors and axle bearings for railway vehicles
  • steelworks and in many other industrial applications.

Company Information

We are a professional bearing exporter in China, producing many bearings in different sizes and sizes. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, spherical ball/roller bearings, and cylindrical roller bearings, tapered roller bearings, angular contact Ball bearings, etc. Bearings can also provide OEM services according to customer requirements. We adhere to strict global standards, which is why we can provide you with a wide range of bearings of world-class quality. We have always adhered to the principle of “integrity-based, quality first, customer foremost.” We are ready to use our sincerity to serve every global customer for long-term and win-win cooperation.