Tapered Roller Bearing 32922JR

Specifications

32000JR系列 model comparison

Compare 2 models in the same series by specification.

How to choose Tapered Roller Bearings

Points to check when selecting, with the values for this product (32922JR).

1. 1. Dimension series matching shaft and housing

   This product: Inner diameter d 110 mm

   Bore d matches the shaft diameter and outside diameter D matches the housing bore. Tapered roller bearings come in metric and inch series, and bearings of similar size are not interchangeable. When replacing bearings in existing machinery, confirm the series of the boundary dimension designation, and check inner ring width B and outer ring width C against the step dimensions of the mounting section.

2. 2. Managing preload with assembled width T and tolerance

   This product: Width T 25 mm

   Width T is the overall width of the inner and outer rings when assembled, and it affects axial mounting dimensions and the adjustment amount for preload or clearance. The assembled width tolerance class changes the effort required for adjustment, so when used in pairs, confirm T and its tolerance class.

3. 3. Estimating life with basic dynamic load rating

   This product: Basic dynamic load rating Cr 162 kN

   Basic dynamic load rating Cr is the basis for life calculation. From radial and axial loads, the dynamic equivalent load is obtained using factor e and load factor Y1, and rated life is calculated from the ratio to Cr. The listed Cr values range from 9.5 kN to several tens of thousands of kN and vary greatly with the number of rows.

4. 4. Checking shock and low-speed use with static load rating

   This product: Basic static load rating C0r 231 kN

   For applications with stationary operation, very low speed, or shock loads, check the margin against permanent deformation using the ratio of basic static load rating C0r to the static equivalent load (calculated with Y0). For heavy-duty rolling mills and similar uses, secure capacity with double-row or four-row types.

5. 5. Determining shaft support by load action point position

   Tapered roller bearings have load action points located away from the end face, and the span between supports changes depending on back-to-back or face-to-face arrangement. Use the load action point position a for calculating shaft deflection and reaction forces, and determine the mounting direction accordingly.

6. 6. Matching rotational speed and lubrication method

   This product: Permissible speed (oil lubrication) 3000 min-1

   The permissible rotational speed is set higher for oil lubrication than for grease lubrication. Confirm that the operating speed is within the value for each lubrication method. For differentials and other applications where energy saving is required, low-torque types showing the friction torque reduction rate are also candidates.

This guide was written by AI based on the listed products' documents and specification items.

About Tapered Roller Bearings and all products

Description

Tapered roller bearing of the 32000JR series, a compact type with bore 110 mm, outside diameter 150 mm and width 25 mm. Permissible rotational speed is 3000 min-1 with oil lubrication and 2300 min-1 with grease lubrication.

FAQ

Q. What is the permissible rotational speed of the 32922JR depending on lubrication method?

A. The permissible rotational speed is 3000 min-1 with oil lubrication and 2300 min-1 with grease lubrication.

Q. What are the main dimensions and mass of the 32922JR?

A. The bore d is 110 mm, outside diameter D is 150 mm, and width T is 25 mm. The mass is 1.28 kg.

Q. What are the basic dynamic load rating and basic static load rating of the 32922JR?

A. The basic dynamic load rating Cr is 162 kN and the basic static load rating C0r is 231 kN.

Q. What applications is the 32922JR suited for?

A. It is a tapered roller bearing used in machine tools and industrial machinery. As a roller bearing, it supports high radial and axial loads.

Q. How is the presence of an outer ring flange identified for the 32922JR?

A. This product is the non-flanged outer ring type. The outer ring flanged type is distinguished by the B suffix in the model number.

Written by AI based on the content of the source documents.

Source documents

• Catalog 精密転がり軸受 Precision Ball & Roller Bearings (CAT.NO.BA005JA-5DS) Open page 136
  Found on: https://koyo.jtekt.co.jp/support/catalog-download/