MR115
MR Series Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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MR115 Bearing Product Overview & Core Advantages
The MR115 is a metric single row deep groove ball bearing designed for reliable performance in compact spaces. Engineered to primarily handle radial loads, this bearing is characterized by its high precision ABEC1 tolerance class, ensuring smooth operation and excellent rotational accuracy. Its open design allows for versatile lubrication options, making it suitable for a wide range of applications requiring dependable and cost-effective rotational support.
MR115 Bearing Model Code Explained, Specifications & Naming Convention
The model designation MR115 and its specifications indicate the following key technical attributes:
- MR115: Standard model number for a metric single row deep groove ball bearing.
- Seal Type: Open: No integral seals or shields, allowing for high-speed operation and custom lubrication.
- Tolerance Class: ABEC1: Denotes a standard level of precision for runout and dimensional accuracy.
- Radial Internal Clearance: MC3: Specifies a "Normal" internal clearance range suitable for most common operating conditions.
- Lubrication: Required: The bearing must be lubricated with a suitable grease or oil for proper operation.
MR115 Bearing Structural Features & Performance Benefits
The performance of the MR115 is derived from its robust construction and material selection:
- High-Quality Materials: Both rings and balls are manufactured from Chrome Steel, providing high hardness, wear resistance, and a long service life. The Stainless Steel cage ensures durability and corrosion resistance.
- Optimized Load Capacity: With a dynamic load rating of 137 lbf and a static load rating of 51 lbf, it is capable of handling significant radial forces for its compact size.
- High-Speed Capability: The open design and precision construction contribute to a limiting speed of 45,000 rpm, making it suitable for high-velocity applications.
- Precision Operation: The ABEC1 tolerance and controlled radial internal clearance ensure low noise and vibration levels, promoting smooth and accurate rotation.
MR115 Bearing Typical Application Areas
The MR115 bearing is ideally suited for a variety of small, high-speed, and precision mechanisms, including:
- Small electric motors and spindles
- Precision instruments and optical devices
- Office automation equipment (e.g., printers, scanners)
- Radio-controlled models and drones
- Medical devices and dental handpieces
- Various light-duty industrial machinery
