Double Row Angular Contact Ball Bearings / Hub Bearings

At Kriloha Ltd., we understand that “System-Stability” is the foundation of vehicle and operator safety. Our Double Row Angular Contact Ball Bearings, also known as Hub Bearings, are our engineered answer for “Combined-Load-Dominance” and “Maintenance-Free-Reliability”. As a premier provider of industrial and automotive components, Kriloha has developed a hub series that balances mechanical invincibility with the operational agility required for modern transportation and high-torque machinery.

The engineering of our double-row series is based on Moment-Load Resistance. By optimizing the contact angles of both ball rows, we ensure that the bearing acts as a rigid anchor for the rotating assembly, preventing the “wobble” that leads to premature tire wear or mechanical vibration. At Kriloha, we verify that our bearings utilize high-purity, through-hardened steel and specialized raceway honing to provide a “Smooth-Motion” barrier that stands up to thousands of operational hours. This creates a “Rigid-Resilient” support system that secures your highest-value automotive and industrial assets.

Manufacturing these bearings involves strict Preload and Seal-Integrity Verification. We ensure that every hub unit provides the quiet, vibration-free performance required for premium driving experiences and high-precision industrial lines. Whether you are overhauling a fleet of commercial vehicles or designing a high-load conveyor system, Kriloha Hub Bearings provide the mechanical durability your application demands. By choosing Kriloha Ltd., you are investing in a “Safety-First” technology that secures the integrity of your rotating systems.

Bearing Table

SR. NO.	BEARING NO.	BOUNDARY DIMENSIONS (in mm)			MASS (~ Kg.)
SR. NO.	BEARING NO.	d	D	B	MASS (~ Kg.)
1	527352	20.000	52.000	22.200	0.320
2	510478 B	20.000	52.000	22.200	0.270
3	803374	35.000	68.000	37.000	0.540
4	5207	35.000	72.000	27.000	0.430
5	5307	35.000	80.000	34.900	0.735
6	3208	40.000	80.000	30.200	0.580
7	TA 48931	48.000	93.000	37.000	1.010

Primary Use Cases

Automotive Wheel Hubs: The industry standard for passenger car wheel ends, providing the primary support for the vehicle’s weight and steering loads.
Electric Motor Drive Ends: Used in heavy-duty motors where high axial stability and low vibration are required.
Industrial Fan Assemblies: Supporting large-diameter fans that experience both radial weight and axial wind thrust.
Agricultural Equipment: Found in disc harrows and seeding equipment where the bearing must withstand heavy tilting loads in dirty environments.
Conveyor Pulleys: Providing a robust, pre-sealed solution for tensioning rollers in material handling systems.

Frequently Asked Questions

1. Why use a double-row bearing instead of two single-row bearings?
A double-row hub bearing is more compact, easier to install, and comes with a factory-calibrated preload, which eliminates the risk of human error during assembly.
2. Can these bearings be repaired or regreased?
Most modern hub bearings are “sealed-for-life” units. They are pre-filled with high-quality synthetic grease and protected by contact seals, making them maintenance-free until they reach the end of their service life.
3. What happens if the preload is incorrect?
Incorrect preload leads to excessive heat or mechanical play. Because Kriloha hub bearings have the preload set at the factory, they provide a much higher level of reliability than adjustable tapered designs.
4. Are these compatible with ABS (Anti-lock Braking Systems)?
Yes, many of our automotive hub bearings feature integrated magnetic encoder rings or sensor mounts required for modern ABS and traction control systems.
5. How do I know if a hub bearing is failing?
Common signs include a “growling” or humming noise that changes with vehicle speed, increased vibration in the steering wheel, or uneven tire wear.