TIMKEN -Torrington HJ-8811240 Needle Roller bearing,Cylindrical Roller Radial Bearings-HJ Series 139,700 X 177,800 X 63,50 (mm)

TIMKEN-Torrington HJ-8811240 Needle Roller Bearing

The TIMKEN-Torrington HJ-8811240 is a high-performance needle roller bearing designed to handle heavy radial loads while maintaining a compact footprint. This bearing is part of TIMKEN’s renowned range, known for its durability, precision, and reliability, making it suitable for demanding applications in industries like automotive, industrial machinery, and heavy equipment.

Design and Construction

The HJ-8811240 is a full complement needle roller bearing, which means it is designed without a cage, allowing for the maximum number of needle rollers to be included. This configuration maximizes the load-carrying capacity by increasing the contact surface area between the rollers and the raceways. The bearing has an outer diameter of approximately 6 inches (152.4 mm), a length of 8 inches (203.2 mm), and a wall thickness of 2.5 inches (63.5 mm). Its robust yet compact design makes it ideal for applications where high load capacity is needed in tight spaces.

Constructed from high-grade, case-hardened steel, the bearing’s outer ring offers excellent resistance to wear and impact, essential for performance under high-stress conditions. The needle rollers are precisely aligned to ensure even load distribution, reducing internal friction and stress concentrations, which enhances the bearing’s efficiency and lifespan. The absence of an inner ring allows direct mounting onto the shaft, saving space and simplifying the assembly process.

Performance Features

The HJ-8811240’s full complement of needle rollers enables it to support heavy radial loads efficiently, making it suitable for applications involving continuous or variable loading conditions. The design minimizes internal friction, resulting in lower operating temperatures and reduced energy consumption, which are crucial for the longevity and reliability of the bearing in demanding environments.

Applications

The HJ-8811240 is commonly used in heavy-duty applications such as automotive transmissions, industrial gearboxes, construction machinery, and heavy equipment. Its ability to handle substantial radial loads with a compact form factor makes it ideal for use in equipment where space is limited but high performance is required. It is particularly effective in applications like conveyors, heavy-duty pumps, and earth-moving equipment, where consistent and reliable operation is critical.H

Conclusion

The TIMKEN-Torrington HJ-8811240 needle roller bearing is a robust, high-capacity solution designed for applications that demand exceptional load support in compact spaces. Its full complement design and high-quality construction provide reliable performance under heavy radial loads, making it a preferred choice in industrial and automotive settings. This bearing exemplifies TIMKEN’s commitment to delivering innovative and dependable bearing solutions tailored to the needs of modern machinery and equipment.