Rolling Mill Bearing Chock
Rolling Mill Bearing Chock
A rolling mill bearing chock, also known as a roll chock or mill bearing housing, is a critical structural component in rolling mill work stands that houses and supports the roller neck and rolling bearings. As the core load-bearing part of the rolling mill equipment, bearing chocks transmit rolling force from the rolls to the mill stand frame, while maintaining the precise position and running stability of the rolls during metal rolling processes in hot and cold rolling operations.
BOPENG is specialize in producing durable, precision-engineered cast steel bearing chocks suitable for various types of rolling mills, including hot strip mills, cold rolling mills, and plate mills.
Main Function
Technical Specifications
|
Parameter |
Capability |
|---|---|
|
Material |
ZG20SiMn, ZG270-500, ZG35CrMo, Stainless Steel, and other customized metal alloy material |
|
Weight |
5 tons – 150 tons (support larger customized products) |
|
Gear Accuracy |
Up to GB/T 10095-2008 Class 6 |
|
Surface Roughness |
Ra ≤ 0.8μm (bearing installation surface) |
|
Sulphur Content |
Control ≤ 0.015% (far below industry standard) |
|
Phosphorus Content |
Control ≤ 0.025% |
|
Internal Compactness |
≥ 99.2% |
|
Non-destructive Testing |
100% full coverage ultrasonic testing, magnetic particle testing |
Main Structure of Rolling Mill Bearing Chock
BOPENG provides fully custom rolling mill bearing chocks, supporting all specifications from small to extra-heavy. A standard rolling mill bearing chock consists of the following core parts:
Outer Housing
The main load-bearing structure, usually made of solid cast steel, with a reinforcing rib design to improve the overall rigidity and reduce stress concentration.
Bearing Mounting Bore
The core working part, requiring extremely high dimensional accuracy and surface quality, matches the outer diameter of the rolling bearing to ensure a tight fit and no looseness during operation.
Sealing Structure
BOPENG provide two common sealing solutions:
Oil Seal: Rubber or polyurethane oil seal, suitable for conventional working conditions, low cost, and easy replacement
Labyrinth Seal: Multi-channel zigzag sealing structure, suitable for harsh environments with a large amount of water and oxide scale, provides excellent sealing performance
Fixing System
Bolt fixing holes for conventional installation, or customized embedded structure according to equipment requirements, to meet the needs of different mill stand designs.
Lubrication System
Precisely machined lubricating oil grooves and oil passages to ensure continuous and sufficient lubrication of the bearing, reduce the friction coefficient and operating temperature.
Why Choose BOPENG Cast Steel Rolling Mill Bearing Chock?
As a professional cast steel component manufacturer, BOPENG rolling mill bearing chocks have outstanding advantages that are recognized by global customers:Higher Strength, Longer Service Life
– Optimized alloy steel material formula, the tensile strength reaches 800-1000MPa and hardness HRC28-32.
– Through finite element optimization design, the stress concentration is reduced by more than 40%, and the service life is 2-3 times that of ordinary cast steel bearing chocks.
– For heavy-duty working conditions, it can withstand a continuous impact load of thousands of tons, with stable performance, and is not easy to deform.
Higher Precision, Better Rolling Quality
– High-precision CNC machining ensures that the dimensional accuracy of the bearing mounting bore meets the design requirements.
– Optimized lubricating groove design reduces the friction coefficient to 0.08, which can save 12% of energy consumption compared with traditional products.
– Strict parallelism and position tolerance control ensure the precise position of the roll, effectively improving the dimensional accuracy of rolled products.
Full Customization, Adapt to Various Working Conditions
– Support non-standard customization of any size within 150 tons, according to your drawing production.
– Can select materials and adjust performance according to different working conditions, such as hot rolling, cold rolling, roughing, and finishing.
– Provide structural optimization services, help you reduce product weight and reduce procurement costs on the premise of ensuring performance.
Strict Quality Control, Reliable Quality
– 100% full inspection of all products, non-destructive testing coverage of 100% key parts.
– The sulfur content is controlled below 0.015%, and the phosphorus content is ≤0.025%, which is far lower than the industry standard.
– The internal compactness of the casting reaches 99.2%, and the rejection rate of internal defects is far lower than the industry average.
Rich Industry Experience, Stable Supply Capacity
– BOPENG has accumulated many years of production experience in the metallurgical rolling industry, and our products have been applied to hundreds of rolling lines around the world.
– The large production capacity of BOPENG can guarantee the delivery cycle of large, heavy castings.
– BOPENG has a professional technical team which can provide you with pre-sales design consultation and after-sales technical support.
Industrial Applications of Rolling Mill Bearing Chock
BOPENG’s Solution for Cast Steel Products
BOPENG support fully customized large casting steel products in widely applications, including building material industry, metallurgical engineering, and mining industry. We supply one-stop solution from drawings to finished products.
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