Full Roller Thrust Tapered Roller Bearing THR Type for Screw Down

Specifications

How to choose Tapered Roller Thrust Bearings

Points to check when selecting, with the values for this product (Full Roller Thrust Tapered Roller Bearing THR Type for Screw Down).

1. 1. Select the type by load direction

   Single-direction types accept axial load in one direction only, and double-direction types accept load in both directions. Characteristics also vary depending on whether a cage is fitted or the bearing is full-complement. Organize the load direction, presence of rotation, and presence of shock loads before deciding the type.

2. 2. Check static rated load for shock and static loads

   This product: Basic static load rating C0a 2190～49400 kN

   For applications such as screw-down devices that receive large loads or shocks at low speed or at rest, static rated load is the selection criterion. Listed products range widely from 2190 to 98200 kN, and full-complement types have particularly high values. Confirm that there is sufficient margin against the maximum load.

3. 3. Estimate life using dynamic rated load

   For applications where the bearing receives load while rotating, calculate rated life from the dynamic rated load. Listed products range from 823 to 6530 kN. Verify that the required life time is met based on the actual axial load and rotational speed.

4. 4. Match shaft and housing dimensions

   This product: Outer diameter D 149.225～641.350 mm

   Match the bore to the shaft diameter and the outside diameter to the housing bore. Listed products have bores of 160 to 550 mm and outside diameters of 149.2 to 900 mm. Even with the same outside diameter, series may have different mounting dimensions depending on model number, so check against the dimension tables when replacing existing equipment.

5. 5. Confirm assembly height fits the equipment

   Height determines the axial mounting space. For large bearings, differences in height affect equipment structure. Do not select based on load capacity alone; confirm that the assembly height fits within the axial dimensions of the equipment.

6. 6. Check the rotational speed limit

   Full-complement types have rollers in contact with each other, so they are not suited to high-speed rotation. Confirm that the operating speed does not exceed the permissible speed. If it does, consider a caged type or a lubrication method.

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

About Tapered Roller Thrust Bearings and all products

Description

Full roller thrust tapered roller bearing with outside diameter of 149.225 to 641.350 mm. Lists main dimensions, basic static load rating, mounting dimensions, and mass.

FAQ

Q. What are the outside diameter and basic static load rating ranges for the Full Roller Thrust Tapered Roller Bearing THR Type for Screw Down?

A. Outside diameter D ranges from 149.225 to 641.350 mm, and basic static load rating C0a ranges from 2190 to 49400 kN.

Q. What applications is the THR Type used for?

A. It is used in screw down devices of rolling mills.

Q. What are the features of the THR Type?

A. It features a full roller design and a high basic static load rating.

Q. Where can I find the main dimensions, mounting dimensions, and mass of the THR Type?

A. Main dimensions, basic static load rating, mounting dimensions, and mass are listed.

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

Source documents

• Catalog JTEKT 大形転がり軸受カタログ（技術解説・軸受寸法表）
  Found on: https://koyo.jtekt.co.jp/support/catalog-download/