5205-2RS – Angular Contact Ball Bearing 0.984 in (25 mm) x 2.047 in (52 mm) x 0.811 in (20.6 mm) (ID x OD x Width) with Double Rubber Seal

Description

Product Overview

The QJZ 5205-2RS angular contact ball bearing is engineered to meet the demanding requirements of modern machinery across a wide range of industries. Its design incorporates a double rubber seal (2RS) that provides superior protection against moisture, dust, and other contaminants, ensuring long‑term reliability even in the harshest operating environments. The bearing measures 25 mm in inner diameter, 52 mm in outer diameter, and 20.6 mm in width, offering a compact footprint while delivering high radial load capacity and precise angular contact performance. Constructed from high‑quality steel, the balls and raceways are heat‑treated for enhanced hardness and wear resistance, reducing the risk of premature failure. The precision machining of the inner and outer rings guarantees a tight fit and smooth rotation, minimizing vibration and noise during operation. This bearing is compatible with a variety of standard shafts and housings, making it a versatile choice for OEMs and maintenance professionals alike. Its robust construction, combined with the double rubber seal, provides an effective barrier against ingress, extending service intervals and reducing total cost of ownership.

Usage

Designed for versatility, the 5205-2RS bearing excels in automotive applications such as transmission shafts, differential assemblies, and steering systems where precise angular alignment is critical. In agricultural machinery, it supports high‑torque components like PTO shafts and gearboxes, delivering reliable performance under variable load conditions and exposure to dust and moisture. Construction equipment, including excavators and loaders, benefit from the bearing’s ability to handle radial and axial loads simultaneously, ensuring smooth operation of hydraulic pumps and motor drives. Industrial settings, such as conveyor systems, compressors, and motorized rollers, also rely on the bearing’s durability and sealed design to maintain efficiency and reduce downtime. The bearing’s compact dimensions allow it to be integrated into space‑constrained designs without sacrificing load‑bearing capability, making it an ideal solution for retrofits and new equipment builds. Its sealed nature eliminates the need for frequent lubrication checks, simplifying maintenance schedules for field technicians and plant operators.

Why Choose Us

Choosing the QJZ 5205-2RS bearing means selecting a product backed by rigorous quality assurance processes and a commitment to customer satisfaction. Each bearing undergoes comprehensive testing, including dimensional inspection, hardness verification, and dynamic load simulation, to confirm compliance with international standards such as ISO 281 and ABMA. The double rubber seal is manufactured from premium elastomer compounds that retain elasticity over a wide temperature range, providing consistent protection against contaminants. QJZ’s manufacturing facilities employ state‑of‑the‑art CNC equipment and automated assembly lines, reducing human error and ensuring repeatable precision across every unit. In addition, the company offers technical support from experienced engineers who can assist with bearing selection, installation guidelines, and troubleshooting. Customers benefit from a responsive after‑sales service team that provides rapid parts replacement and warranty assistance, reinforcing confidence in long‑term performance. By partnering with QJZ, users gain access to a reliable supply chain, detailed product documentation, and a reputation for delivering components that meet the highest standards of durability and functionality.

Key Features

• Double rubber (2RS) seal protects against moisture and dust, extending bearing life.
• Compact 25 mm ID, 52 mm OD, 20.6 mm width fits tight spaces while handling high loads.
• High‑quality steel balls and hardened raceways provide superior wear resistance.
• Precise angular contact design delivers smooth rotation and reduced vibration.
• Dedicated technical support and warranty service ensure reliable after‑sales assistance.

FAQ

What does the 2RS designation mean?

2RS indicates that the bearing has two rubber seals, one on each side, which prevent the entry of contaminants and retain lubrication, making the bearing suitable for sealed applications.

Can this bearing be used in high‑temperature environments?

Yes, the rubber seal material and steel components are rated for temperatures up to 120 °C (248 °F), allowing reliable operation in many industrial and automotive settings.

Is the bearing compatible with standard shafts?

The 25 mm inner diameter matches common shaft sizes, and the bearing can be installed using standard mounting hardware without the need for custom adapters.

What is the recommended lubrication method?

Because the bearing is sealed with a double rubber seal, it is pre‑lubricated for life and does not require additional grease or oil under normal operating conditions.

How do I verify the bearing’s authenticity?

Each QJZ bearing carries a unique serial number and is packaged with official documentation. Verify the serial number on the QJZ website or contact customer support for confirmation.