Brass Bearing Cage

As a core component within a bearing, the brass bearing cage (also known as a retainer or separator) plays a critical role in separating, guiding, and retaining the rolling elements (balls or rollers) at equal intervals. This function is vital for minimizing friction, heat generation, and metal-to-metal contact, ensuring the bearing’s overall efficiency and lifespan.

At Shaoxing Shangyu Flight Seiko Machinery Co., Ltd. (FTM), with over 30 years of specialized technical design experience, we leverage our expertise to manufacture high-quality, customized brass bearing cages, especially for non-standard and high-precision applications.

Key Features of FTM Custom Brass Bearing Cages

The FTM Manufacturing Advantage: Precision Machined Cages

FTM specializes in machined brass cages, which offer significant advantages over stamped or molded alternatives, particularly in heavy-duty and high-speed scenarios.

• Strength and Durability: Machining ensures a dense, high-integrity structure, making the cages inherently stronger and more durable for demanding, high-load environments like those found in engineering and textile machinery.
• High Precision Alignment: Our professional technical team and advanced machining technology guarantee exceptional dimensional accuracy and surface finish. This precision is essential for high-speed performance and maintaining the accurate alignment and stability of the rolling elements, directly contributing to extending the bearing service life.
• Non-Standard & Import Substitution: Leveraging our deep technical know-how, FTM excels at the customization of non-standard and high-precision brass cages, serving as a reliable domestic source for import substitution components.

Frequently Asked Questions (FAQ)

1. Q: Why choose brass over steel or polyamide (plastic) for a bearing cage?
A: Brass is preferred in applications requiring high mechanical strength, excellent thermal stability (high-temperature resistance), and superior resistance to specific chemical corrosion or harsh operating fluids, where polyamide cages might soften and steel cages might seize or lack necessary wear-in properties.

2. Q: What is the maximum operating temperature for an FTM brass cage?
A: While the specific limit depends on the brass alloy and lubrication, brass cages generally perform exceptionally well in temperatures up to $250^\circ\text{C}$ to $300^\circ\text{C}$ ($480^\circ\text{F}$ to $570^\circ\text{F}$), which significantly surpasses the limits of standard polymer cages.

3. Q: Do brass cages require special lubrication?
A: No, brass cages are compatible with most standard greases and oils. Their good wear properties and anti-friction characteristics even benefit from marginal lubrication, making them highly reliable.

4. Q: Are machined brass cages quieter than stamped steel cages?
A: Generally, yes. The high precision and stability achieved through FTM’s machining process ensure better guidance of the rolling elements, reducing vibration and contributing to a quieter and smoother bearing operation, especially at higher rotational speeds.

5. Q: What information is needed for FTM to quote a custom brass cage?
A: To provide an accurate quote for a custom machined cage, we require the bearing type, the rolling element dimensions, and, most importantly, the detailed technical drawing of the required cage, including material specifications (if critical) and the operational environment (temperature, load, speed).