Description
Product Overview
The SUN-BEARINGS alternator bearing is a precision‑engineered component designed for modern automotive alternators. With an outside diameter of 52 mm and a thickness of 16 mm, this ball bearing delivers smooth rotation and reduced friction. Constructed from high‑grade steel and pre‑lubricated with premium grease, it meets OEM specifications for Denso part numbers 140462, 949100‑3820, and DG 1552. The bearing’s compact design ensures a perfect fit in tight engine bays while providing long‑term durability under high‑temperature conditions.
Usage
This bearing is intended for replacement of alternator assemblies in passenger cars, light trucks, and hybrid vehicles that use Denso‑type alternators. It excels in high‑load scenarios such as stop‑and‑go traffic, heavy towing, and extreme climate zones. Installers ranging from professional mechanics to experienced DIY hobbyists will find the standard 52 mm x 16 mm dimensions compatible with most service manuals, simplifying the maintenance workflow.
Why Choose Us
SUN-BEARINGS combines over two decades of bearing technology with rigorous quality control. Each bearing undergoes ultrasonic testing and dimensional verification to guarantee zero tolerance deviation. The pre‑applied grease eliminates the need for additional lubrication, reducing service time and potential contamination. Our products are backed by a 12‑month warranty, reflecting confidence in material integrity and performance consistency.
Key Features
- Exact 52 mm outer diameter and 16 mm thickness for direct OEM fit
- High‑precision ball bearing design minimizes friction and wear
- Pre‑lubricated with durable grease for immediate installation
- Compatible with Denso DG1552, 140462, and 949100‑3820 alternator models
- Rigorous quality testing ensures reliability in demanding automotive applications
FAQ
Is this bearing compatible with all Denso alternators?
The bearing is specifically matched to Denso part numbers 140462, 949100‑3820, and DG 1552. Verify your alternator model before purchase to ensure compatibility.
Do I need to add additional grease during installation?
No additional grease is required. The bearing comes pre‑lubricated with a high‑temperature grease that meets OEM standards.
What is the expected service life of this bearing?
When installed correctly and operated within normal vehicle parameters, the bearing typically lasts the lifetime of the alternator, often exceeding 80,000 miles.
Can I install this bearing myself?
Yes, the bearing is designed for standard toolsets. Follow the vehicle’s service manual for torque specifications and handling instructions.
What warranty does SUN-BEARINGS provide?
All bearings are covered by a 12‑month limited warranty against manufacturing defects, providing peace of mind for both professionals and DIY users.
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