Koyo 63/22NRC3 Deep Groove Ball Bearing, with Locating Snap Ring (NR), 22 x 56 x 16 mm

This Koyo deep groove ball bearing (snap ring, 62/28 to 63/32 series) is built on the most popular rolling bearing type. Deep, uninterrupted raceway grooves in the inner and outer rings carry radial load and a certain degree of axial load in either direction, at high speed. It has a groove in the outer ring and a locating snap ring fitted (NR type), which positions the bearing axially in the housing.

The range has 4 sizes, with bores from 22 to 32 mm, C3 radial internal clearance and boundary dimensions to JIS B 1512. Koyo bearings are made by JTEKT Corporation.

Where this product is used

• Automotive: transmissions, electrical devices, and truck and trailer equipment
• Off-highway: construction equipment, agricultural equipment and railway rolling equipment
• Electrical equipment: standard motors and domestic electric appliances
• Measuring and medical instruments
• General industrial equipment

Features

• Deep, uninterrupted raceway grooves carry radial load and a certain degree of axial load in either direction
• Locating snap ring (NR) fitted: aids axial positioning and removes the need for a housing shoulder
• C3 radial internal clearance, larger than the normal clearance
• Boundary dimensions to JIS B 1512, tolerances to JIS B 1514-1
• Basic dynamic load ratings 17.9 to 30.1 kN and static 9.4 to 16.2 kN depending on size
• Standard cage by size: polyamide moulded and pressed steel

Key specifications

Available sizes

Selecting the right option

Select by bore d first, then check the outside diameter D and width B in the table against your housing.

The basic dynamic load rating Cr relates to bearing life under rotating load, and the basic static load rating C0r to heavy or slow-turning duty. Compare the limiting speed for your size with the shaft speed. The speeds shown are the grease lubrication limits.

The locating snap ring aids axial positioning and removes the need for a housing shoulder. The housing needs to be machined to suit the snap ring and the outer ring width.

C3 is a radial internal clearance larger than normal. It is chosen where interference fits or a temperature difference between the rings take up clearance in service. Confirm the clearance class for your application.

Fitting and use

Fit the ring that has the interference fit first, and press only on that ring, never through the balls.

A bearing with a locating snap ring is designed for use with the inner ring rotating. Check with AIMS Industrial before using it with the outer ring rotating.

Where axial load is large, make the shaft shoulder and housing shoulder larger than usual.