Black Pearl SRI 2
High Temperature Anti-friction Bearing Polyurea Grease (Formerly SRI Grease)
Black Pearl SRI 2 is a specially formulated grease containing a highly refined paraffinic base oil, synthetic polyurea ashless organic thickener and high performance rust and oxidation inhibitors, for the lubrication of anti-friction ball, needle and roller bearings operating at speeds up to and above 10,000 rpm, operating at higher temperatures, or where water or salt water may penetrate bearings.
Applications
Black Pearl SRI 2 may be used in:
- High speed bearings operating under high or low temperature conditions
- Unsealed bearings where there is the likelihood of fresh or salt water getting into the bearings
- Sealed-for-life bearings
- Industrial ball and roller bearings
- Electric motor, fan, and air-conditioning unit bearings
- Automotive alternator, generator and starter motor bearings
- Water pump bearings
- Boat trailer wheel bearings
Usable temperature range in continuous service from -30 to 150°C. Maximum temperature for short term exposure is 175°C.
Customer benefits
- Long service life at high temperatures
- Synthetic polyurea thickener is oxidatively stable at elevated temperatures. This, coupled with its high dropping point and the highly refined base oil and high performance anti-oxidant components, enables operation for periods at high temperatures.
- Long bearing life under severe conditions
- Special rust and corrosion inhibitors provide protection to metal surfaces in wet conditions, even in a salt water environment. Passes Bearing Rust Test, ASTM D5969 with synthetic sea water. Outstanding oxidation stability helps prevent the formation of corrosive oxidation by-products.
- Excellent resistance to water washout
- Synthetic polyurea thickener has excellent inherent water resistance.
- Wide application range
- Wide temperature range capability and excellent water resistance allow use in a wide variety of operating conditions.
approvals, performance and recommendations
Performance standards
Suitable for use in high-speed bearings from major bearing OEMs including SKF, FAG-Schaeffler, NSK. Consult the OEM representatives for independent verification, updates and recommendations.
Always confirm that the product selected is consistent with the original equipment manufacturer’s recommendation for the equipment operating conditions and customer’s maintenance practices
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