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Cylindrical roller bearing

Cylindrical roller bearings with inner or outer rings without fenders, whose inner and outer rings can move relative to each other in axial direction, can be used as free-end bearings.

Introduction

Cylindrical roller bearings with inner or outer rings without fenders, whose inner and outer rings can move relative to each other in axial direction, can be used as free-end bearings. Cylindrical roller bearings with double rim on one side of the inner and outer rings and a single rim on the other side of the ring can withstand a certain degree of axial load in one direction. Generally used steel plate stamping cage, or copper alloy car solid cage. But some use nylon forming cages.

Cylindrical roller and raceway for line contact bearings. Large load capacity, mainly bearing radial load. The friction between the rolling body and the rim of the ring is small, suitable for high-speed rotation. According to whether the ring has a rim or not, it can be divided into NU, NJ, NUP, N, NF and other single-row cylindrical roller bearings, and NNU, NN and other double-row cylindrical roller bearings. The bearing is a detachable structure with inner ring and outer ring.

PRODUCT SPECIFICATION

Bearing No. Principal Dimensions(mm) Basic Load Ratings(KN) Limited Speed(rpm) Weight (kg)
Fw D B Dynamic(Cr) Static(Cor) Grease Oil
RNU309E 58.5 100 25 93 98 5600 7000 0.79
RNU310E 65 110 27 105 112 5300 6700 1.01
RNU311E 70.5 120 29 128 138 4800 6000 1.5
RNU308E 53.5 90 23 76.8 77.8 6300 8000 0.48
RNU307E 46.2 80 21 62 63.2 7000 9000 0.4
RNU306E 42 72 19 49.2 48.2 8000 10000 0.32
RNU218E 107 160 30 172 215 3400 4300 2.07
RNU305E 35 62 17 38.5 35.8 9000 12000 0.2
RNU214E 84.5 125 24 112 135 4300 5300 0.89
RNU210E 60.4 90 20 61.2 68.2 6000 7500 0.43
RNU212E 73 110 22 89.8 102 5000 6300 0.78
RNU209E 55 85 19 58.5 63.8 6300 8000 0.41
RNU208E 50 80 18 51.5 53 7000 9000 0.25

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