High-Quality Insert Bearings UCP304 UCP305 UCP306 UCP307 UCP308

• Customization: Available
• Aligning: Aligning Bearing
• Separated: Unseparated
• Model NO.: UCP304 UCP305 UCP306 UCP307 UCP308
• Feature: Vacuum, Magnetically, Low Temperature, Corrosion Resistant, High Temperature, High Speed
• Rows Number: Multiple
• Raceway: Crowned Raceway
• Material: Cast Iron
• Bearing Block Model: T
• Transport Package: Custom Packaging
• Specification: 75mm*115mm*20
• Trademark: Ju dong
• Origin: China
• HS Code: 5452109000

Product Description

Zhejiang Judong Bearings Co., Ltd., established in [2016], is located in Zhejiang Province, China. We are a professional manufacturer and supplier of a wide range of bearing products. Our bearings are widely used in industries such as machinery manufacturing, automotive, electronics, home appliances, and industrial automation

Design and Structural Advantages
Unique Spherical Outer Surface Design: The outer ring surface of insert bearings is spherical, which mates with the concave spherical surface of the bearing housing. It can automatically compensate for the misalignment of the axis caused by installation errors, shaft deflection, etc. The maximum self-aligning angle can reach ±2° - ±3°, effectively avoiding local overload and wear, and extending the service life of the bearings.
Compact and Integrated Structure: The bearing, bearing housing, and sealing device are integrated into one unit. It has a compact structure, occupies less space, and is simple and quick to install, reducing the installation cost and time. For example, in some mechanical equipment with limited space, the compact design of insert bearings can save a lot of space and make the overall layout of the equipment more reasonable.
Performance Advantages
High Load - Carrying Capacity: Through the optimized internal structure design and the selection of high - strength materials, insert bearings can withstand relatively large radial loads and a certain amount of axial loads. Taking the common UCP series insert bearings as an example, they can withstand radial forces of up to several thousand Newtons, meeting the working requirements of various industrial equipment.
Good Rotational Accuracy: Advanced processing technology and precision manufacturing equipment are adopted to ensure the rotational accuracy of insert bearings. During high - speed operation, they can maintain a stable rotation speed and low vibration, improving the operational stability and reliability of the equipment.
Low Friction Coefficient: Special materials and surface treatment processes result in a low friction coefficient during the operation of insert bearings, reducing energy consumption and improving transmission efficiency. At the same time, low friction can also reduce the heat generation of the bearings and extend the service life of the lubricant.
Environmental Adaptability Advantages
Good Sealing Performance: They are equipped with high - performance sealing devices, such as rubber seals or dust covers, which can effectively prevent dust, moisture, and impurities from entering the inside of the bearings, protecting the bearings from the erosion of the external environment and being suitable for various harsh working environments.
Strong Corrosion Resistance: Some insert bearings are made of corrosion - resistant materials or undergo special surface treatments, such as galvanizing or chrome plating, and have good corrosion resistance, enabling them to work normally in wet and chemically corrosive environments.
Maintenance and Cost Advantages
Easy to Maintain: The structural design of insert bearings makes their maintenance work simple and convenient. When it is necessary to replace the lubricant or conduct inspections, there is no need for a complex disassembly process, reducing the maintenance difficulty and cost.
High Cost - Effectiveness: Insert bearings have a relatively low price. At the same time, they have a long service life and good performance, providing users with high cost - effectiveness. On the premise of meeting the equipment performance requirements, they reduce the equipment procurement cost and operating cost.

 

    

Bearing Model	Bore Diameter (mm)	Outer Diameter (mm)	Width (mm)	Weight (kg)
UCP304	20	52	84	1.1
UCP305	25	62	90	1.5
UCP306	30	72	96	2.0
UCP307	35	80	102	2.4
UCP308	40	90	110	3.0

 

The correct installation of insert bearings is crucial for their performance and service life. The following are the detailed installation
steps:Preparation before Installation
Clean the components: Use a clean cloth and appropriate cleaning agent to carefully clean the bearing housing bore and the journal surface, removing impurities such as oil, rust, and dust to ensure the surfaces are clean. At the same time, check the surfaces of the bearing housing and the shaft for scratches, pits, and other defects. If there are minor defects, they can be repaired by sanding with fine - grit sandpaper. For serious defects, the components need to be replaced.
Check the fit dimensions: Use professional measuring tools, such as calipers and micrometers, to accurately measure the journal diameter and the bearing housing bore diameter to ensure they match the inner and outer diameter tolerances of the bearing. The tolerance range should strictly follow the design requirements. Generally, the journal tolerance is h6 or k6, and the bearing housing bore tolerance is H7.
Prepare installation tools: Get ready suitable installation tools, such as sleeves, hammers, and presses, ensuring they are clean, undamaged, and of the right size.
Install the Bearing on the Shaft
Heat the bearing (optional): When the fit between the bearing and the shaft is an interference fit, the heating method can be used for installation. Place the bearing in an oil bath for heating. Control the heating temperature between 80 - 100°C, with a maximum of 120°C. The heating time depends on the size of the bearing, usually 10 - 30 minutes. Use a thermometer to monitor the oil temperature during heating to avoid damage to the bearing due to excessive temperature.
Install the bearing: Quickly remove the heated bearing, wipe off the surface oil with a clean cloth, and then immediately slip the bearing onto the shaft. Use a sleeve and a hammer to gently tap, or use a press to slowly apply pressure to smoothly install the bearing to the specified position on the shaft. During the installation process, ensure that the centerlines of the bearing and the shaft are aligned to avoid tilting.
Install the Bearing in the Bearing Housing
Install the bearing: Carefully place the shaft with the installed bearing into the bearing housing bore, ensuring that the outer spherical surface of the bearing is in full contact and well - matched with the concave spherical surface of the bearing housing. Use bolts to fix the bearing housing to the equipment. When tightening the bolts, tighten them gradually in a diagonal order to ensure that the bearing housing is evenly stressed. The tightening torque should meet the design requirements.
Inspection and Debugging