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NTN 1308 MA Self-Aligning Ball Bearing | 40x90x23mm | Heavy Duty Machined Brass Cage

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Marca: NTN
Product Category: Self-Aligning Ball Bearing

Product Details

Brand: NTN
NTN 1308 MA Self-Aligning Ball Bearing | 40x90x23mm | Heavy Duty Machined Brass Cage

The NTN 1308 MA is a premium double-row self-aligning ball bearing (SABB) specifically engineered to manage significant angular misalignment and shaft deflection without compromising operational integrity. Its unique internal design allows the outer ring raceway to pivot relative to the inner ring, ensuring optimal load distribution and reduced friction even when mounting errors or structural deflections are present. The critical 'MA' suffix denotes the inclusion of a robust, high-performance machined brass cage, which provides superior dimensional stability, higher thermal resistance, and exceptional rigidity compared to standard pressed steel cages, making it the ideal choice for high-vibration environments and applications requiring extreme reliability. Designed for rigorous industrial applications such as conveyor rollers, textile machinery, mining equipment, and large industrial fans, the 1308 MA delivers an extended operational life and significantly reduced maintenance downtime. By minimizing internal stresses caused by shaft inaccuracies, this premium bearing actively prevents premature fatigue and thermal issues. Maintenance and procurement professionals choosing the precision-engineered NTN 1308 MA ensure maximum uptime and a lower total cost of ownership (TCO) for their critical rotating equipment, leveraging NTN's commitment to uncompromising quality and performance in demanding operational settings.

Key Features

  • Self-Aligning Capability: Compensates for static and dynamic shaft misalignment up to 2.5 degrees.
  • MA Suffix: Features a robust, high-strength machined brass cage for maximum rigidity and high temperature stability.
  • Double-Row Design: Provides superior radial load capacity compared to single-row equivalents.
  • Reduced Friction: Internal design minimizes heat generation, leading to longer lubrication intervals and bearing life.
  • High Reliability: Ideal for applications prone to heavy vibration or shock loads (e.g., mining, conveying).

Technical Specifications

d40 mm
D90 mm
B23 mm
Weight0.62 kg
Bearing_TypeSelf-Aligning Ball Bearing (SABB)
Cage_MaterialMachined Brass (MA)
Dynamic_Load_Rating_Cr40.5 kN
Static_Load_Rating_C0r13.7 kN
Limiting_Speed_Grease7,000 r/min