Description
Product Overview
The National HB88515 ball bearing is engineered for high‑performance environments where reliability and longevity are paramount. Constructed from premium alloy steel, each bearing undergoes an advanced heat‑treatment cycle that enhances hardness, reduces wear, and improves resistance to fatigue. The result is a component that can sustain heavy radial and axial loads while maintaining precise rotational accuracy. With dimensions of 12.4 x 10.3 x 9.5 inches and a weight of 4.11 pounds, the bearing fits seamlessly into a wide range of automotive and industrial assemblies. Its machined exterior provides a smooth surface for optimal contact with housing and shaft components, ensuring consistent performance over the product’s service life.
![[Product front view showing all components]](https://www.yarnfinds.store/wp-content/uploads/2026/06/1ad7fc8cb81742d0a7b0e96dd5c81482.jpg)
Usage
This bearing is suited for both OEM replacement and aftermarket upgrades across a variety of vehicle and machinery platforms. It excels in applications such as transmission systems, drive shafts, and gearboxes where high torque transmission and minimal vibration are critical. The bearing’s design complies with original equipment (OE) specifications, making it a direct fit for many domestic and import models. In industrial settings, it supports conveyor rollers, pump shafts, and other rotating equipment that demand steady operation under continuous load. The compatibility with standard grease lubricants simplifies maintenance, while the robust construction tolerates harsh operating temperatures and exposure to contaminants.
Why Choose Us
Choosing the National HB88515 means selecting a product backed by decades of engineering expertise and rigorous quality control. Each bearing is subjected to comprehensive testing throughout design, production, and final inspection stages, guaranteeing dimensional accuracy and material integrity. National’s commitment to durability is reflected in the advanced heat‑treatment process that extends bearing life beyond typical industry standards. Additionally, the company offers industry‑leading coverage for both domestic and import applications, providing customers with confidence that the bearing will perform reliably in diverse environments. Our after‑sales support includes technical assistance, warranty coverage, and access to replacement parts, ensuring that you receive the full value of your investment.
Key Features
- Premium alloy steel construction delivers superior strength and wear resistance.
- Advanced heat‑treatment process extends service life and maintains precision under load.
- Exact OE dimensions ensure a seamless fit for a wide range of automotive and industrial equipment.
- Designed for easy installation with standard grease lubrication, reducing downtime.
- Comprehensive customer support and warranty provide peace of mind after purchase.
FAQ
What vehicles are compatible with the HB88515 bearing?
The HB88515 bearing matches the specifications of many domestic and imported vehicles that use standard ball bearing sizes. It is commonly used in transmission, drivetrain, and suspension components. Consult the vehicle service manual or contact our support team with your VIN to confirm exact compatibility.
Can this bearing be used with synthetic lubricants?
Yes, the bearing is compatible with both conventional grease and synthetic lubricants. Synthetic options can provide enhanced temperature stability and reduced friction, which may be beneficial in high‑performance or extreme‑temperature applications.
What is the warranty period for this bearing?
National offers a limited warranty that covers manufacturing defects for a period of one year from the date of purchase. The warranty does not cover damage caused by improper installation, misuse, or unauthorized modifications.
How do I install the HB88515 bearing correctly?
Begin by cleaning the housing and shaft surfaces to remove any debris or old lubricant. Apply a thin layer of grease to the bearing’s inner and outer races, then carefully press the bearing into place using a bearing press or appropriate tools to avoid impact damage. Verify proper alignment before re‑assembling the surrounding components.
Is there technical support available for troubleshooting?
Yes, National provides dedicated technical support staffed by experienced engineers. You can reach them via phone, email, or live chat for assistance with installation, performance issues, or any other questions related to the bearing.




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