High Temperature UCP Pillow Block Bearings – Size Chart

Posted on October 28, 2025 in FAQ, Size Chart

Choosing the right high temperature pillow block bearing is critical for equipment operating in hot and demanding conditions. Standard bearings can degrade when exposed to elevated heat, which leads to premature failure and costly downtime. Tritan High Temperature Pillow Block Bearings (UCP Series) are built to handle extreme temperatures in industrial environments. They include a solid cast iron housing for durability, a secure set screw lock, and convenient zerk fittings for maintenance.

These bearings are engineered with high temperature silicone seals, high temperature grease, heat stabilized rings, and loose (C4) internal clearance to support thermal expansion during operation. This reduces stress on the bearing and helps extend service life in hot applications.

Tritan medium duty pillow block bearings come in 0.5 inch to 2.43 inch bore sizes, making them a solid choice for HVAC systems, food and beverage production equipment, ovens, kilns, conveyors, and other machinery exposed to continuous heat.

The wide inner ring provides increased shaft support, better alignment, and smoother rotation under vibration and heavier loads. This added stability is especially valuable in high temperature applications where movement and expansion are more extreme.

MDS of Michigan sells Tritan high temperature pillow block bearings online with fast shipping across the USA. Use the size chart below to search by Part Number, Bore Diameter, Bolt Hole to Bolt Hole, and Base to Center dimensions to ensure a proper fit for your setup.

High Temperature Bearing Size Chart

Key Benefits

• Designed for continuous high temperature environments
• Wide inner ring for better shaft support and alignment
• Heat stabilized rings resist deformation from thermal stress
• High temperature silicone seals protect against contamination
• High temperature grease maintains lubrication under heat
• Solid cast iron housing for strength and rigidity
• Set screw lock for secure shaft installation
• Loose (C4) clearance allows for thermal expansion during operation

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FAQ: High Temperature Pillow Block Bearings

Why do high temperature bearings need loose (C4) internal clearance?
It creates extra space inside the bearing for expansion when exposed to heat. This prevents binding and reduces internal friction.

How do high temperature silicone seals help?
They resist heat breakdown and help keep grease in while blocking contamination from dust, steam, and debris.

Why choose bearings with a wide inner ring?
The additional width helps stabilize the shaft under heavier loads, vibration, and thermal expansion. It reduces shaft deflection and improves bearing life.

Where are Tritan high temperature pillow block bearings used?
They are ideal for ovens, kilns, heated conveyors, food processing equipment, HVAC systems, and other industrial machinery that operates in elevated heat.