Moline Even-Lok™ 4-Bolt Expansion Pillow Block Bearing with Labyrinth Seal
The Moline Even-Lok™ 4-Bolt Expansion Pillow Block Bearing with Labyrinth Seal is engineered for demanding, high-speed, and high-temperature applications where reliability, durability, and precise shaft support are essential. Featuring Moline’s patented Even-Lok™ concentric locking system, this bearing ensures a secure 360-degree grip around the shaft, evenly distributing clamping forces to prevent distortion, fretting, and premature wear often associated with set screw locking mechanisms.
Expansion Design for Thermal Shaft Movement
The expansion configuration allows controlled axial movement of the shaft, making it the ideal solution for long-shaft systems or equipment experiencing significant temperature fluctuations. By accommodating thermal expansion and contraction, the bearing reduces internal stress, maintains alignment, and helps extend equipment life in continuous-duty environments.
Advanced Labyrinth Seal Technology
Non-Contact Sealing for High-Speed Performance
The labyrinth seal sets this model apart by providing non-contact protection against dirt, dust, moisture, and other contaminants. Its engineered pathway blocks debris without direct contact, minimizing friction, reducing heat buildup, and allowing the bearing to excel in high-speed and high-temperature conditions where contact seals may degrade or fail. This makes it an ideal choice for industrial fans, blowers, and fast-moving conveyor systems.
Heavy-Duty 4-Bolt Cast Iron Housing
Maximum Strength and Stability
The rugged 4-bolt cast iron housing delivers superior strength, vibration resistance, and structural stability. Inside, a precision ball bearing insert with hardened steel balls and deep-groove raceways ensures smooth rotation, excellent load distribution, and reduced friction. A built-in relubrication fitting simplifies maintenance, supporting long-term reliability.
Applications and Key Advantages
This bearing is widely used in conveyors, industrial fans, HVAC systems, packaging machinery, and agricultural equipment—anywhere contamination control, thermal movement, and high-speed performance are required.
Key Features
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Even-Lok™ concentric locking for uniform 360° shaft grip
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Expansion design accommodates thermal movement
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Labyrinth seal for non-contact, high-speed protection
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Heavy-duty 4-bolt cast iron housing
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Precision deep-groove ball bearing insert
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Ideal for conveyors, fans, HVAC, packaging, and industrial machinery
This advanced pillow block bearing delivers unmatched sealing performance, strength, and flexibility for the most challenging applications.
