Jet-Lube AP-5 High-Temp Grease: How an MoS2 Compound Protects Bearings from 0°F to 550°F
About this episode
This episode discusses the benefits and specifications of JetLube AP-5 high-temp grease for protecting bearings in extreme temperatures.
JetLube AP-5 high-temp grease protects bearings from 0°F to 550°F using a bentone clay (organo clay) thickener that carries no dropping point under ASTM D-566 — meaning it structurally cannot melt the way soap-thickened greases do. If kiln bearings, oven conveyors, or crusher journals are burning through your standard multi-purpose grease, AP-5 is the spec change that stops the cycle. See the 5 lb. can here: https://www.pe-energy.com/product/25006-ap-5-5-lb-can/ The MoS2 advantage goes straight to film strength and fretting corrosion prevention. Molybdenum disulfide platelet structures bridge metal surfaces under boundary lubrication conditions — exactly the slow-oscillating, high-load contacts found in kiln bearings, press guides, lift-bridge pin bearings, and crane ladle pivots. Shell 4-Ball EP testing (ASTM D-2596) backs it up: weld point 250 kgf, load wear index 40, wear scar diameter 0.7 mm (ASTM D-2266). Those are numbers worth dropping into your RFPs. AP-5's thermal safety margins are built for furnace-adjacent environments. The operating range runs from 0°F (-18°C) to 550°F (288°C) . Flash point exceeds 560°F (293°C) per ASTM D-92; calculated autoignition point exceeds…
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