Why Ordinary Grease Fails at High Temperature & How High-Temperature Grease Prevents Equipment Downtime

A large number of industrial equipment failures in high-temperature workshops are not caused by mechanical aging, but by ordinary grease failure under extreme heat. Many factories still use standard lithium grease or low-quality general-purpose grease for high-heat equipment, resulting in frequent problems such as grease melting, oil loss, bearing dry grinding, carbon accumulation and equipment stuck. This article analyzes the failure mechanism of ordinary grease and how professional high-temperature grease solves hidden production risks.

Ordinary industrial grease usually has a dropping point below 120℃–130℃. When the equipment working temperature exceeds the limit, the grease will rapidly soften, liquefy and drip, losing adhesion and lubricating protection. At the same time, base oil oxidizes violently under high temperature, producing a large amount of black sludge and hard carbon deposits. These abrasive residues will continuously wear bearings and gears, eventually leading to equipment noise, vibration, jamming and forced shutdown.

Professional high-temperature grease completely avoids the above failure problems. First, high dropping point formula prevents melting and dripping. Second, anti-oxidation additives suppress oil deterioration and sludge generation. Third, low-volatility base oil maintains long-term effective lubrication without rapid oil loss. Fourth, stable oil film strength resists high-temperature friction and protects metal parts continuously.

Real Industrial Benefits

Replacing ordinary grease with matched high-temperature grease can reduce high-temperature equipment failure rate by more than 60%, extend bearing service life by 2–3 times, reduce manual refueling frequency, and effectively avoid production loss caused by unplanned downtime. It is the most low-cost and high-return industrial maintenance upgrade.