Alemite AL1770-B1 Hydraulic Fitting 45 Degree 1/4-28 Unf

Product Description

The ALEMITE AL1770-B1 is a 45-degree hydraulic grease fitting designed for lubrication points that require angled access in tight or obstructed service areas. The fitting threads at 1/4-28 UNF-2A and accepts a standard grease gun coupler at the 39/64 inch ball head. It is used to deliver grease to bearings, pins, joints, and other lubrication points across a wide range of mechanical equipment. Maintenance technicians, millwrights, and fleet service professionals install these fittings as part of routine lubrication system setup or when replacing damaged or stripped zerks on machinery and vehicles.

The 45-degree angle is suited for lubrication points where a straight fitting would be blocked by adjacent structure, making grease gun engagement difficult or impossible. These fittings see use in agricultural equipment, industrial machinery, construction equipment, and commercial vehicles. The 1/4-28 UNF-2A thread is a widely used standard thread form for grease fittings in North American manufacturing.

Key Features

• 45-degree angle body for access to obstructed or recessed lubrication points
• 1/4-28 UNF-2A thread for compatibility with standard tapped grease ports
• 39/64 inch ball head accepts standard grease gun couplers
• Compact and lightweight at 0.01 pounds per fitting
• Sold individually

Compatibility

Designed as an OEM-style replacement or service fitting for equipment with standard 1/4-28 UNF-2A tapped grease ports requiring a 45-degree zerk fitting.

Installation Notes

Installation is performed with a wrench sized to the fitting hex; avoid over-tightening into soft aluminum or cast housings to prevent thread damage. Clean the tapped port before threading in the new fitting. After installation, purge the old grease by applying fresh grease through the fitting until new grease appears at the bearing or joint. Always relieve system pressure or shut down rotating equipment before replacing grease fittings on live machinery.

Technical Specifications

• Fitting Angle: 45 degrees
• Thread Size: 1/4-28 UNF-2A
• Head Size: 39/64 inches
• Weight: 0.01 pounds
• Unit of Measure: Each

Standard Information

• Brand: ALEMITE
• Manufacturer Part Number: AL1770-B1