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An S3 heat stabilization bearing is a specialized rolling bearing manufactured to operate in high-temperature environments, specifically designed to withstand operating temperatures up to +300°C (
$572 raised to the composed with power$
F).

Here are the key details regarding S3 stabilized bearings:

Heat Treatment & Stability: These bearings undergo specific heat treatment processes to ensure they remain dimensionally stable (limiting deformation or changes in geometry) when running at extreme temperatures.
Operating Conditions: S3 signifies suitability for very high-temperature applications, such as in metallurgical furnaces, industrial ovens, or specialized machinery.
Hardness Trade-off: While heat stabilization prevents structural deformation, the process required for S3 (+300°C) reduces the material hardness of the rings, which often leads to a lower load-carrying capacity (dynamic radial load rating
$cap C sub r$
) compared to standard bearings.
Alternatives Suffixes:
- S0: Up to +150°C (
  $300 raised to the composed with power$
  F).
- S1: Up to +200°C (
  $390 raised to the composed with power$
  F).
- S2: Up to +250°C (
  $480 raised to the composed with power$
  F).
- S3: Up to +300°C (
  $572 raised to the composed with power$
  F).
- S4: Up to +350°C (
  $660 raised to the composed with power$
  F).
Common Applications: Often used in industrial contexts like conveyor rollers in steel mills, kiln cars, or high-temperature fans.
Common Suffix Associations: S3 bearings are frequently paired with C4 or C5 internal clearance due to the need to account for thermal expansion, and are often available in premium brands like SKF or Schaeffler (FAG).

Designation system - Roller bearings - SKF
Table_title: Applicable options Table_content: header: | 6.4 | Suffixes - Stabilization (n.a.) | row: | 6.4: S0 | Suffixes - Stabi...
SKF
Rolling bearings for high temperatures
Heat and surface treatment - SKF
Heat treatment is used to limit dimensional changes caused by metallurgical effects at extreme temperatures. There is a standardiz...
SKF

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Designation system - Roller bearings

SKF

https://www.skf.com › carb-toroidal-roller-bearings › d...

SKF

https://www.skf.com › carb-toroidal-roller-bearings › d...

6.4. Suffixes - Stabilization ; S3, Bearing rings heat stabilized for operating temperatures ≤ 300 °C (570 °F) ...Read more

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SKF

https://www.skf.com › products › needle-roller-bearings

SKF

https://www.skf.com › products › needle-roller-bearings

Bearing heat stabilized for operating temperatures ≤ 200 °C (390 °F). S2, Bearing heat stabilized for operating temperatures ≤ 250 °C (480 °F). S3, Bearing ...Read more

NA6915-ZW-H-S3-XL-C4 Needle roller bearing

Schaeffler

https://medias.schaeffler.us › ... › NA

Schaeffler

https://medias.schaeffler.us › ... › NA

Stabilized for operating temperatures up to + 300 ° C. Number of rows, ZW ... Heating Devices for Thermal Mounting and Dismounting Bearings and Components ...Read more

OEM/ODM S3 heat stabilization bearing, S3 ... - RMO Bearings

rmbearing.com

https://www.rmbearing.com › s3-heat-stabilization-bearing

rmbearing.com

https://www.rmbearing.com › s3-heat-stabilization-bearing

Looking for S3 heat stabilization bearing? RMO will be your right choice! We have customers all over the world and are trustworthy!

22208-E1-XL-S3-C3 FAG

ABF Store

https://www.abf.store › bearings › 22208-E1-XL-S3-C3...

ABF Store

https://www.abf.store › bearings › 22208-E1-XL-S3-C3...

This bearing type has a solid inner ring, which runs on two rows of symmetrical rollers in a solid outer ring. The outer ring has a concave, spherical raceway.Read more

Heat Treatment Processes for Bearings at WIB

WIB SA

https://wib-bearings.com › ... › Technical Parameters

WIB SA

https://wib-bearings.com › ... › Technical Parameters

The heat stabilization designation for 100 Cr6 steel components is shown below: ... S3, 300°C. S4, 350°C. The 440C stainless steel is stabilized after hardening ...Read more

Radial Ball Bearings

PEER Bearing

https://peerbearing.com › Products

PEER Bearing

https://peerbearing.com › Products

Peer Bearing offers precision radial ball bearings for smooth motion and reduced friction ... Heat stabilization: S0, S1, S2, S3. Single Row Deep Groove Ball ...Read more

Rolling bearings for high temperatures

thb.at

https://www.thb.at › Startseite › Critical applications

thb.at

https://www.thb.at › Startseite › Critical applications

Higher heat stabilization (S2 – 250 °C / S3 – 300 °C) reduces the hardness and thus the achievable service life. If bearings are used in the area above the ...Read more

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Lyra bearing

https://lyrabearing.com › insights › ceramic-bearings-fo...

Lyra bearing

https://lyrabearing.com › insights › ceramic-bearings-fo...

The high temperature stabilized bearings have load capacities that can be drastically lower than those of the standard bearing.Read more

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Ball and Roller Bearings

NTN Americas

https://ntnamericas.com › uploads › 2020/12

NTN Americas

https://ntnamericas.com › uploads › 2020/12

PDF

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