Spherical Roller Thrust Bearing Type E (292, 293, 294 series)

Specifications

How to choose Spherical Roller Thrust Bearings

Points to check when selecting, with the values for this product (Spherical Roller Thrust Bearing Type E (292, 293, 294 series)).

1. 1. Select bore to suit shaft diameter

   This product: Inner diameter d 60～170 mm

   The bore d is the bore of the shaft washer and is determined by the shaft diameter to be fitted. Listed products range from 60 to 1600 mm. Even at the same bore, the 292, 293 and 294 series differ in outside diameter, height and load capacity, so confirm bore and series together.

2. 2. Check housing space by outside diameter and height

   This product: Outer diameter D 130～340 mm

   The outside diameter D defines the housing bore, and the height H defines the axial assembly space. Heavier series have larger outside diameter and height and higher load capacity, so check dimensions against both housing design constraints and required load capacity.

3. 3. Verify dynamic load rating for life calculation

   This product: Basic dynamic load rating Ca 380～2360 kN

   The basic dynamic load rating Ca is the reference value for life calculation under rotating axial load. When radial load is also applied, convert to equivalent load for evaluation. Some products specify that radial load should be 55% or less of axial load, so check the load ratio as well.

4. 4. Use static load rating for static and shock loads

   This product: Basic static load rating C0a 915～6550 kN

   The basic static load rating C0a is a guideline for the permissible axial load during standstill, very low speed or shock loading. For applications with start-up shock or heavy loads while stopped, check the safety factor against the static rating as well as the dynamic rating.

5. 5. Judge rotational speed by two limits

   This product: Limiting rotational speed 1900～5000 r/min

   The reference speed is a guide based on heat generation, and the limiting speed is the maximum mechanically permissible speed. If the operating speed exceeds the reference speed, consider heat generation including lubrication method and cooling. Oil lubrication is common for this type.

6. 6. Check permissible misalignment against shaft tilt

   The permissible misalignment angle is the shaft tilt the bearing can accommodate. Listed products range from 0.035 to 0.052 rad. Confirm that shaft deflection and housing mounting error fall within this range. Exceeding it causes uneven load distribution and can lead to early damage.

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

About Spherical Roller Thrust Bearings and all products

Description

Features a specially designed raceway and a large number of asymmetrical rollers, distributing the load evenly along the full roller length. Suitable for relatively high-speed operation and can accommodate shaft misalignment caused by shaft deflection. The E type has an optimized internal design that increases load capacity; sizes up to 68 are fitted with a pressed steel cage, and sizes 72 and above with a machined-brass comb-type cage. Products marked with an asterisk belong to the SKF Explorer performance class, offering improved dynamic load capacity, wear resistance and service life.

FAQ

Q. What loads can the Spherical Roller Thrust Bearing Type E (292, 293, 294 series) support?

A. It is a self-aligning spherical roller thrust bearing that supports heavy unidirectional axial loads and heavy radial loads.

Q. What are the bore, outside diameter and height ranges of the Spherical Roller Thrust Bearing Type E (292, 293, 294 series)?

A. Bore diameter d is 60 to 170 mm, outside diameter D is 130 to 340 mm, and height H is 39 to 103 mm.

Q. What are the basic dynamic load rating and basic static load rating of the Spherical Roller Thrust Bearing Type E (292, 293, 294 series)?

A. Basic dynamic load rating Ca is 380 to 2360 kN, and basic static load rating C0a is 915 to 6550 kN.

Q. What is the range of rotational speeds for the Spherical Roller Thrust Bearing Type E (292, 293, 294 series)?

A. Reference speed is 1100 to 2800 r/min, and limiting speed is 1900 to 5000 r/min.

Q. Can the Spherical Roller Thrust Bearing Type E (292, 293, 294 series) accommodate shaft misalignment?

A. Yes. As a self-aligning bearing, it can accommodate shaft misalignment relative to the housing. It is also stated to be suitable for relatively high-speed operation and to accommodate misalignment caused by shaft deflection.

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

Source documents

• Catalog SKF 転がり軸受 13 スラスト球面ころ軸受 製品データ表 22 pages
  Found on: https://azuma-eg.com/catalogue/