Alemite Grease Fitting

Alemite Grease Fittings: Built by the Inventors of the Zerk

When it comes to grease fittings, few names carry the weight that Alemite does. Alemite invented the Zerk lubrication fitting — the very standard that virtually every grease fitting in use today is based on. That history, stretching back to 1918, means Alemite doesn't just make grease fittings; they defined what a quality grease fitting looks like. Explore the full range of grease fittings to find the right fit for your application.

What Sets Alemite Grease Fittings Apart

Alemite's edge in the grease fitting category goes well beyond legacy. Their fittings are backed by the patented CHAPS® System, which makes fittings stronger, more durable, and easier to use compared to standard alternatives. Standard and metric fittings are manufactured to the highest quality standards using top-grade materials, and the lineup conforms to SAE J534 and TS16949 industry standards — assurances that matter in both automotive and heavy industrial environments.

Alemite is also the only source for Monel grease fittings, a nickel-copper alloy construction that delivers superior corrosion resistance — even exceeding stainless steel — for the most severe marine and chemical environments. Their stainless steel fittings feature two notches for easy field identification and are built for rugged applications such as heavy machinery, construction, and off-road equipment.

A Fitting for Every Application

One of Alemite's biggest strengths is the sheer breadth of their grease fitting catalog. Whether you need a standard hydraulic fitting for industrial machines, an angled fitting for tight clearance spaces, or a specialized drive-type fitting for untapped holes on production lines, Alemite has an engineered solution. Key types in the Alemite grease fitting lineup include:

• Hydraulic Fittings – Available in straight, 30°, 65°, and 90° configurations for 1/8" and 1/4" PTF threads; widely used on industrial machinery and heavy equipment.
• Drive-Type Fittings – Feature a serrated shank for fast installation in untapped holes, eliminating thread-tapping costs in production environments.
• Thread-Forming Fittings – Include a dirt-excluding ball check and are rated up to 8,000 psi, exceeding 48-hour salt-spray test standards.
• Leakproof Fittings – Incorporate a Buna-N seal to prevent grease blowback and contamination; certain models include a specialty cap for a second seal in dust-proof applications.
• Air Vent Fittings – Designed for differentials, transmissions, and gearboxes to allow pressure equalization while keeping water and dirt out.
• Stainless Steel & Monel Fittings – Purpose-built for corrosive marine, agricultural, and chemical processing environments.

Industry-Wide Trust

Alemite grease fittings are relied upon across manufacturing, construction, agriculture, automotive, marine, and even aerospace applications. Their fittings meet the demands of professionals who simply cannot afford a lubrication failure — from farm machinery and heavy-haul trucks to aircraft maintenance and mining equipment. As part of the SKF Group, Alemite continues to innovate with the global engineering resources of one of the world's foremost bearing and lubrication technology companies behind them.

For anyone sourcing grease fittings, starting with Alemite means starting with the brand that wrote the standard — literally.