Moline Even-Lok™ 4-Bolt Non-Expansion Flange Bearing w/ Labyrinth Seal

Moline Even-Lok™ 4-Bolt Non-Expansion Flange Bearing with Labyrinth Seal

Engineered for High-Speed, High-Temperature, and Heavy-Duty Performance

The Moline Even-Lok™ 4-Bolt Non-Expansion Flange Bearing with Labyrinth Seal is purpose-built for demanding applications where precision alignment, superior sealing, and long service life are essential. Equipped with Moline’s patented Even-Lok™ concentric locking system, this bearing delivers a secure 360-degree shaft grip, distributing clamping forces evenly to prevent fretting, shaft distortion, and premature wear commonly associated with traditional set screw designs.

Non-Expansion Design for Exact Shaft Positioning

Maximum Stability in Critical Applications

The non-expansion configuration locks the shaft firmly in place, preventing axial movement and ensuring precise alignment. This rigid design is ideal for systems requiring consistent shaft positioning—such as conveyors, industrial fans, HVAC blowers, agricultural implements, and high-speed manufacturing equipment. By maintaining a fixed position, the bearing promotes smoother operation and reduces vibration.

Advanced Labyrinth Seal Technology

Superior Protection Without Added Friction

The labyrinth seal is the defining feature of this bearing. Unlike contact seals, it creates a multi-stage, non-contact barrier that effectively protects the bearing from dust, dirt, moisture, and airborne contaminants. The non-contact design minimizes friction and heat buildup, making the unit especially well-suited for high-speed or elevated-temperature environments where conventional seals may fail.

Heavy-Duty 4-Bolt Housing

Rugged Construction for Harsh Environments

Built from high-strength cast iron, the 4-bolt flange housing offers exceptional durability, superior vibration resistance, and long-lasting reliability. Inside the housing, the precision ball bearing insert—featuring hardened steel balls and deep-groove raceways—ensures efficient load distribution, smooth rotation, and reduced friction. A relubrication fitting allows for simple, routine maintenance.

Applications

Ideal for:

• High-speed conveyors

• Industrial fans and blowers

• HVAC systems

• Agricultural machinery

• Manufacturing and processing equipment

Key Features

• Even-Lok™ concentric locking system for secure 360° shaft grip

• Non-expansion design ensures fixed shaft alignment

• Labyrinth seal for high-speed and high-temperature protection

• Heavy-duty 4-bolt cast iron housing

• Deep-groove precision bearing insert with relubrication fitting

For superior sealing performance, shaft stability, and reliability in extreme conditions, the Moline Even-Lok™ 4-Bolt Non-Expansion Flange Bearing with Labyrinth Seal stands as a proven, high-performance solution.