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Heat-resistant Stainless Bearings up to 482°F

Heat-resistant bearing, made of AISI 440C stainless steel with heat-resistant fluorine grease, can be supplied with short delivery in small lot like even one piece.

Features

    1. AISI 440C stainless steel has lower hardness decrease ratio and smaller dimension changes than SAE 52100 bearing steel in high temperature environment.
    2. AISI 440C stainless steel is superior to SAE 52100 bearing steel in oxidation resistance in high temperature environment.
    3. Filling heat-resistant fluorine grease enables lubrication in high temperature environment.
●Specications
Inner and Outer Rings AISI 440C
Balls AISI 440C
Retainer AISI 304
Shield AISI 304
Seal Fluorine rubber*1
Lubricant Heat-resistant fluorine grease
Radial clearance C4

*1 Sealed type available up to 392ºF

Performance

Durability in high temperature environment

tainetsu-zu1-en
*The above performance values are our test results and are not guaranteed values.

Application

Device around furnace, oven, heater, drying equipment, and other high temperature area.

Heat-resistant Hybrid Bearings up to 482°F

Longer lifetime, by incorporating ceramic ball,than Heat-resistant Stainless Bearings

Features

    1. Hybrid type incorporating ceramic balls into outer and inner rings of AISI 440C stainless steel
    2. Longer grease life, by lower heat generation with ceramic balls
    3. Less running cost by longer lifetime
    4. Material characteristics
    5. Items Unit Silicon nitride
      Si3N4
      Stainless steel
      AISI 440C
      Bearing steel
      SAE 52100
      Superiority of ceramic ball
      Density g/cm3 3.2 7.8 7.8 Lowering centrifugal force of balls
      Heat expansion coefficient X10-6/℃ 3.2 10.5 12.5 Small variation of internal clearance by temperature rise
      Hardness HV 1400 700 740 Excellent abrasion resistance
      Young’s modulus GPa 320 200 210 Reducing friction by high rigidity
      Heat resistance °F 1472 752 356 Maintaining high load capacity in high temperature
      Conductivity No Yes Yes Preventing electric corrosion
●Specications
Inner and Outer Rings AISI 440C
Balls Silicon nitride(Si3N4
Retainer AISI 304
Shield AISI 304
Seal Fluorine rubber*1
Lubricant Heat-resistant fluorine grease
Radial clearance C4

*1 Sealed type available up to 392°F

Performance

Durability in high temperature environment

tainetsu-zu2-en
* The above performance values are our test results and are not guaranteed values.