TR BEARING UCP311

TR UCP311 Pillow Block Bearing Unit

Description

The TR UCP311 is a high-quality pillow block bearing unit, engineered for reliable performance in a wide range of industrial applications. This unit combines a UC311 insert bearing with a P311 cast iron housing, providing a solid and dependable solution for supporting rotating shafts with a 55mm diameter. The bearing is secured to the shaft using two set screws, ensuring a tight fit and preventing slippage under load. It comes pre-lubricated and is equipped with a grease nipple for easy maintenance and extended service life.

Specifications

• Manufacturer: TR Bearing
• Model: UCP311
• Product Type: Pillow Block Bearing Unit
• Bore Diameter: 55 mm
• Housing Material: Cast Iron
• Bearing Insert: UC311
• Housing Number: P311
• Locking Method: Set Screw Locking

Application

Ideal for use in conveyor systems, agricultural machinery, construction equipment, and other general industrial machinery where a simple and robust shaft support is required.

Country of Origin

This product is manufactured in China.

CO2 Impact

By choosing this reused TR UCP311 bearing unit, you are preventing the emission of approximately 10.4 kg of CO2. This saving is comparable to the emissions from driving a car for 52 kilometers.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the correct procedure for mounting the UCP311 onto a 55mm shaft?

Ensure the shaft is clean and free of burrs. Slide the unit onto the shaft to the desired position. Tighten the two set screws alternately and evenly to the manufacturer’s recommended torque to prevent shaft damage and ensure proper alignment.

Can this bearing unit be relubricated, and what type of grease is recommended?

Yes, the unit is equipped with a grease nipple for relubrication. A high-quality, lithium-based grease suitable for ball bearings is generally recommended. The relubrication frequency depends on the operating conditions such as speed, load, and environmental factors.

What do the ‘UC’ and ‘P’ in UCP311 signify?

The ‘UC’ refers to the type of bearing insert, which is a standard radial insert ball bearing with a spherical outer diameter and set screw locking. The ‘P’ designates the housing type, which is a ‘Pillow Block’ or ‘Plummer Block’ housing. This standardization allows for interchangeability with other brands that follow the same naming convention.

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Last Update: Friday, March 13, 2026