Description

Four-Row Cylindrical Roller Bearings: Superior Performance for Heavy-Duty Applications

Four-row cylindrical roller bearings are high-capacity, robust bearings designed for applications demanding exceptional radial load carrying capacity and high rigidity. Their unique design, featuring four rows of cylindrical rollers, provides significantly greater load-bearing capabilities compared to single or double-row counterparts. This makes them ideal for heavy-duty machinery operating under extreme conditions.

Key Features & Benefits:

• Exceptional Radial Load Capacity: The four rows of rollers distribute loads effectively, resulting in a dramatically increased radial load capacity compared to bearings with fewer rows. This ensures reliable operation even under extremely heavy loads.
• High Rigidity: The multi-row configuration provides superior stiffness and resistance to deflection under load, maintaining precise alignment and minimizing vibration. This is crucial for applications requiring high accuracy and stability.
• High Speed Capability: Depending on the specific design and lubrication, many four-row cylindrical roller bearings can operate at relatively high speeds. Optimized roller and raceway geometries minimize friction and heat generation.
• Increased Durability and Longevity: The robust construction and superior material selection contribute to a longer lifespan, reducing maintenance requirements and downtime.
• Precise Manufacturing: These bearings are manufactured to exacting tolerances, ensuring optimal performance and minimizing internal friction.
• Versatile Applications: Suitable for a wide range of industrial applications, including:
  • Rolling mills: Handling extreme loads and providing precise control in demanding environments.
  • Paper machinery: Supporting heavy rollers and ensuring smooth paper handling.
  • Mining equipment: Withstanding the harsh conditions and heavy loads encountered in mining operations.
  • Gearboxes: Providing reliable support for heavy gears and enhancing overall gearbox efficiency.
  • Heavy-duty conveyors: Enabling the efficient and reliable transport of heavy materials.
  • Wind turbines: Withstanding significant radial loads and contributing to the smooth operation of the gearboxes.

Design Considerations:

• Inner and Outer Rings: Precision-ground inner and outer rings provide a stable and accurate mounting surface.
• Cylindrical Rollers: High-quality, precisely manufactured cylindrical rollers ensure smooth, low-friction operation.
• Cage: A robust cage guides and separates the rollers, preventing contact and ensuring even load distribution. Cage materials can vary depending on the specific bearing requirements.
• Lubrication: Proper lubrication is crucial for maintaining optimal performance and extending bearing life. The type of lubricant will depend on the operating conditions and speed.

Specifications (Typical, vary by model):

• Bore Diameter: Wide range of bore sizes available, typically from several centimeters to several tens of centimeters.
• Outside Diameter: Varies depending on bore diameter and width.
• Width: The axial width of the bearing, impacting load capacity and rigidity.
• Dynamic Load Rating (C): Indicates the bearing's capacity to handle dynamic loads.
• Static Load Rating (C0): Represents the bearing's ability to withstand static loads.

Note: Specific dimensions, load ratings, and materials will vary depending on the manufacturer and the specific model of the four-row cylindrical roller bearing. Consult the manufacturer's specifications and technical documentation for detailed information relevant to your application. Proper selection and installation are crucial for achieving optimal performance and longevity.