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Oiles 500SPR-SL1 Hard special copper alloy bearings with embedded solid lubricant

Oiles 500SPR is constructed of a unique copper alloy that is tougher and more impact-resistant than Oiles 500HP. Wear resistance is superior in both high-load and low-velocity operations.


  • Suitable for pressures more than 500HP
  • Can be used in high-load and high-impact situations.
  • Assist in the implementation of a long-term operation or a compact design.

Service range

Service Range 500 SPR SL1
Lubrication condition Dry periodic lubrication
Service temperature range °C -40~+150
Allowable max. pressure P N/mm² 90
Allowable max. Velocity V m/s 0.25 0.5
Allowable max. PV Value N/mm²*m/s 1.65 3.25

Mechanical properties

Density - g/cm³ 7.49
Tensile strength JIS Z 2241 N/mm² 780
Tensile elongation at break JIS Z 2241 % 1
Compressive strength - N/mm² 460
Hardness JIS Z 2243 HBW 280
Modulus of longitudinal elasticity - N/mm² 105000
Co-efficient of linear expansion - X10¯⁵ °C¯¹ 1.97

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