URB Four Row Cylindrical Roller Bearings

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Product Details:

Thickness Varies by model
Weight Varies by model; up to several hundred kilograms
Material High-Quality Bearing Steel
Roller Bearing Type Cylindrical Roller Bearing
Structure Four Row Cylindrical
Seals Type Open or With Seals
Number Of Rows Four
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URB Four Row Cylindrical Roller Bearings Price And Quantity

Minimum Order Quantity 10000 Piece

URB Four Row Cylindrical Roller Bearings Product Specifications

Inner Diameter Customized, 150 mm to 800 mm as per model
Thickness Varies by model
Outside Diameter Customized, 250 mm to 1100 mm as per model
Limiting Speed Up to 2500 RPM (Varies by designation)
Number Of Rows Four
Seals Type Open or With Seals
Bore Size Customized (commonly 150 mm to 800 mm)
Weight Varies by model; up to several hundred kilograms
Structure Four Row Cylindrical
Material High-Quality Bearing Steel
Roller Bearing Type Cylindrical Roller Bearing
Load Capacity Heavy Load (up to several hundred kN depending on size)

URB Four Row Cylindrical Roller Bearings Trade Information

Supply Ability 10000 Piece Per Day
Delivery Time 3 Days

Product Description

The finest grade URB four row cylindrical roller bearings are used solely for the roll necks of rolling mill stands, calendars as well as roller presses. In general, these bearings are mounted on the roll neck with the use of an encumbrance fit. These are ideal for rolling mill applications, especially when the speed is very high. The URB four row cylindrical roller bearings are able to conciliate radial loads only.

Engineered for Demanding Rolling Mill Operations

URB Four Row Cylindrical Roller Bearings are meticulously designed for continuous use in rolling mills where reliability and heavy-load capacity are paramount. Their multi-row arrangement enhances load distribution, reducing wear and extending service life in steel and non-ferrous mill applications. Coupled with customizable sizes and interchangeable standards, the bearings are easily fitted for various machinery, ensuring seamless reliability.

Flexible Precision and Robust Material Selection

Users can select from precision ratings P0, P6, or P5 based on operational requirements, supported by high-quality bearing steel. The choice of brass or steel cages allows optimization for specific application needs. URBs adherence to internationally recognized standards ensures consistent performance and compatibility across industry setups.

Adapted for Harsh Environments and Dynamic Performance

Built to function efficiently between -40C and +120C, URB Four Row Cylindrical Roller Bearings are suitable for mills exposed to temperature extremes. Open or sealed options enhance protection, while grease or oil lubrication choices cater to maintenance and operational preferences. Limiting speeds up to 2500 RPM make them ideal for high-output applications.

FAQs of URB Four Row Cylindrical Roller Bearings:

Q: How do URB Four Row Cylindrical Roller Bearings benefit rolling mill operations?

A: These bearings offer high load-carrying capacity and enhanced stability due to their four-row design, making them ideal for heavy-duty rolling mills. They reduce maintenance requirements and support extended service life, optimizing mill efficiency and productivity.

Q: What are the available precision ratings and how do I choose the right one?

A: URB bearings come in P0, P6, and P5 precision ratings. The selection depends on the required accuracy and speed of your application; higher precision (P5) is recommended where tight tolerances and minimal vibration are critical.

Q: When should I select brass or steel cages for these bearings?

A: Brass cages are preferable for high-speed or shock-load environments due to their superior strength and wear resistance. Steel cages are suitable for general mill applications or where cost-effective durability is required.

Q: Where can these bearings be installed and what bore sizes are available?

A: URB Four Row Cylindrical Roller Bearings are primarily installed in rolling mills and heavy machinery, with customized bore sizing from 150 mm to 800 mm to fit various shaft dimensions as required by the application.

Q: What is the optimal lubrication process for these bearings?

A: Both grease and oil lubrication methods are supported. Grease is ideal for applications requiring minimal maintenance, while oil lubrication suits situations demanding higher speed or when heat dissipation is necessary. Always follow manufacturer guidelines for lubrication intervals and type.

Q: Are URB Four Row Cylindrical Roller Bearings compatible with international standards?

A: Yes, these bearings are fully compatible with DIN and ISO specifications, allowing easy interchangeability and integration into existing mill setups or machinery that adhere to these standards.

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