Shock absorber support bearings Masuma, BS-5001

Masuma Strut Mount (shock absorber support) bearings are reliable components designed specifically for MacPherson-type suspension systems. These bearings play a critical role in the front suspension by allowing smooth rotation of the strut during steering input. As a key link between the suspension and steering systems, the strut bearing directly affects both handling precision and ride comfort.

Masuma offers strut mount bearings in the most commonly used configurations, including:

• Ball and roller-type rolling bearings,
• Polymer-based sliding bearings.

Key material and design features:

• Balls and rollers in rolling bearings are made from GCR15 high-carbon bearing steel, known for its strength, hardness, and wear resistance.
• Sliding bearings use PA66 (polyamide), a high-performance engineering nylon known for toughness and thermal stability.
• Bearing cages and housings in sliding types are made from POM (polyoxymethylene) — a durable thermoplastic with excellent impact resistance and dimensional stability.
• All bearing types are lubricated with LM7315C high-temperature grease, which ensures low-friction performance and long-term corrosion protection.

Masuma strut mount bearings are engineered to match the exact specifications of OEM components, ensuring proper fit, reliable operation, and long service life.

About Masuma

Masuma is a global brand specializing in auto parts, components, and consumables. The company focuses on producing high-wear replacement parts for post-warranty maintenance of Asian and European vehicles.

Masuma’s strategy is to deliver the best balance of reliability and cost, making quality parts accessible to more drivers and service professionals. All products are developed according to Masuma’s own specifications and manufactured under strict quality control by Masuma Auto Spare Parts Co., LTD (Tokyo, Japan) at multiple state-of-the-art factories across East Asia.