Jet-Lube AP-5 High-Temp Grease: How an MoS2 Compound Protects Bearings from 0°F to 550°F

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 680°F (360°C). That spread gives you real margin on high-temperature rotating equipment — blowers, fans, oven conveyors — where a grease fire or carbonized bearing pack is a maintenance nightmare you don't want. Oxidation resistance clocks in at less than 5.0 PSI drop over 100 hours (ASTM D-942), so the grease stays stable across long re-lube intervals. NLGI Grade 2 consistency and 414–506 cSt base oil viscosity at 40°C (ASTM D-445) mean AP-5 drops into your existing centralized lube systems. Penetration of 265–295 at 77°F (ASTM D-217) keeps it compatible with standard grease fittings on anti-friction bearings — ball, roller, sleeve, and journal types. Specific gravity 0.92, density 7.70 lb/gal. The high-viscosity base oil is matched precisely to slow-speed, high-load contacts where thin-film oils fail fast. Copper Strip Corrosion rating of 1A (ASTM D-4048) confirms zero aggression against bronze bushings, brass fittings, and copper-wound motor housings in mixed-metal assemblies. Superior storage life, mechanical stability under working conditions, and high metal adhesion reduce re-lube frequency and product waste. Water resistance prevents washout in paper mills, wet process conveyors, and outdoor crane operations. The combined inhibitor package — oxidation inhibitors, corrosion inhibitors, and metal deactivators — works alongside the MoS2 solid film for multilayer protection. Wholesale orders scale from a single spare 5 lb. can to fleet-wide rollouts. Browse the full JetLube catalog at https://www.pe-energy.com/brand/jet-lube/ Resources https://www.pe-energy.com/product/25006-ap-5-5-lb-can/ https://www.pe-energy.com/brand/jet-lube/ https://gravatar.com/peenergymx https://gravatar.com/taylorindustrialequipment