Koyo 32005JRRS Tapered Roller Bearing, 25 x 47 x 15 mm

This Koyo single-row tapered roller bearing (metric series, 32000 series) has tapered raceways on the inner and outer rings and tapered rollers, with the apexes of the three surfaces meeting at a common point on the bearing axis. It carries radial load and axial load in one direction at the same time and suits heavy loads and impact loads. The outer ring and the inner ring assembly separate, so mounting is easy. Radial load produces an axial component of force in this bearing type, so it is normally used in a facing pair or as a matched set. The two sizes in this range are supplied with a rubber seal (RS).

The range has 2 sizes, with bores from 25 to 30 mm. Boundary dimensions are to JIS B 1512 and tolerances to JIS B 1514-1. The supplementary code J means the outer ring width, contact angle and outer ring small inside diameter conform to ISO 355, and R is the high load capacity design. Koyo bearings are made by JTEKT Corporation.

Where this product is used

• Automobile front and rear wheels
• Transmissions and differential pinions
• Machine tool spindles
• Construction equipment
• Large size agricultural equipment
• Railway rolling stock speed reduction gears
• Rolling mill roll necks and speed reducers

Features

• Radial load and axial load in one direction in a single bearing, suited to heavy loads and impact loads
• Separable: outer ring and inner ring assembly are mounted separately
• Single-row bearings are normally used facing one another in pairs, or as matched sets
• J suffix: outer ring width, contact angle and outer ring small inside diameter to ISO 355
• R: high load capacity internal design

Key specifications

Available sizes

Selecting the right option

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

The catalogue does not list ratings or limiting speeds for the rubber seal version, so no figures are shown here. Confirm the sealed bearing with AIMS Industrial before ordering for critical duty.

Fitting and use

Check the shaft and housing shoulder sizes and fillet radii for the mating parts before fitting.

Single-row bearings have an axial component under radial load, so set the clearance or preload between the facing pair to suit the application.

Related products

Also available from Koyo: the 30200 series metric range, the 30300 series metric range, the 30300 series steep angle range, the 32000 series metric range and the inch series range.