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Tapered Roller Bearing 30222JR

Model 30222JR / 30000JR系列 / JTEKT Corporation (Official website) / Listed on page 136 of the document

Tapered roller bearing with a bore of 110 mm, outside diameter of 200 mm and width of 41 mm. Basic dynamic load rating is 405 kN.

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Tapered Roller Bearing 30222JR on page 136 of JTEKT Corporation "精密転がり軸受 Precision Ball & Roller Bearings (CAT.NO.BA005JA-5DS)"
Source: JTEKT Corporation「精密転がり軸受 Precision Ball & Roller Bearings (CAT.NO.BA005JA-5DS)」page 136
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Specifications

Inner diameter d 110 mm
Outer diameter D 200 mm
Width T 41 mm
Basic dynamic load rating Cr 405 kN
Basic static load rating C0r 434 kN
Permissible speed (grease lubrication) 1900 min-1
Permissible speed (oil lubrication) 2500 min-1
Mass 5.33 kg
Coefficient e 0.42

How to choose Tapered Roller Bearings

Points to check when selecting, with the values for this product (30222JR).

  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 41 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 405 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 434 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) 2500 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 30000JR series, nominal number 30000JR series. Bore 110 mm, outside diameter 200 mm, width 41 mm, and permissible rotational speed with grease lubrication is 1900 min-1.

Features

  • High load capacity as a roller bearing

Applications

  • Machine tools
  • Industrial machinery

FAQ

Q. What are the bore, outside diameter and width dimensions of the 30222JR?
A. The bore is 110 mm, the outside diameter is 200 mm, and the width is 41 mm.
Q. What are the basic dynamic load rating and basic static load rating of the 30222JR?
A. The basic dynamic load rating Cr is 405 kN, and the basic static load rating C0r is 434 kN.
Q. How does the permissible rotational speed of the 30222JR differ between grease lubrication and oil lubrication?
A. The permissible rotational speed is 1900 min-1 with grease lubrication and 2500 min-1 with oil lubrication.
Q. What applications is the 30222JR used for?
A. It is used in machine tools and industrial machinery. It is a product with high load capacity as a roller bearing.
Q. What are the mass and factor e of the 30222JR?
A. The mass is 5.33 kg and the factor e is 0.42.

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

Source documents

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