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

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

High-Speed, High-Temperature Performance with Advanced Shaft Protection

The Moline Even-Lok™ 4-Bolt Expansion Flange Bearing with Labyrinth Seal is engineered for exceptional performance in harsh, high-speed, and high-temperature industrial environments. Featuring Moline’s patented Even-Lok™ concentric locking system, this bearing provides a uniform 360-degree shaft grip, eliminating shaft distortion, fretting, and premature wear commonly associated with set screw locking systems. The result is secure, stable operation and extended equipment life.

Expansion Design for Thermal Flexibility

Protects Machinery from Heat-Related Stress

The expansion-style bearing insert allows controlled axial shaft movement, making it ideal for applications where thermal growth and contraction occur. By preventing excessive stress on shafts, housings, and connected components, the expansion design enhances alignment accuracy and significantly improves system reliability—especially in long-shaft or high-temperature applications.

Labyrinth Seal for Demanding Environments

Non-Contact Protection for High-Speed Applications

The integrated labyrinth seal is a standout feature, offering unparalleled contamination resistance without contact or friction. This multi-stage sealing design blocks dust, dirt, and moisture while allowing the bearing to operate at high speeds without generating heat or wearing the sealing surfaces. It is the preferred solution for environments where standard seals degrade quickly under high RPMs or elevated temperatures.

Heavy-Duty 4-Bolt Cast Iron Housing

Maximum Strength and Vibration Resistance

The rugged 4-bolt housing ensures the bearing remains stable under heavy loads, vibration, and demanding operating conditions. Inside, the precision-engineered ball bearing insert—with hardened steel balls and deep-groove raceways—delivers smooth rotation, efficient load distribution, and long-lasting performance. The relubrication fitting further simplifies maintenance and extends service intervals.

Applications

Ideal for:

• Industrial fans and blowers

• High-speed conveyors

• HVAC and air-handling systems

• Agricultural and material handling machinery

• Manufacturing and processing equipment

Key Features

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

• Expansion design accommodates thermal shaft movement

• Labyrinth seal for superior high-speed, high-temperature protection

• Heavy-duty 4-bolt cast iron housing for maximum stability

• Precision deep-groove ball bearing insert with relubrication fitting

For environments where heat, speed, and contamination challenge conventional bearings, the Moline Even-Lok™ 4-Bolt Expansion Flange Bearing with Labyrinth Seal delivers unmatched durability and performance.