MR117 2rs
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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MR117 2rs Bearing Product Overview & Core Advantages
The MR117 2RS is a metric single row deep groove ball bearing engineered for compact applications requiring reliable radial load capacity and sealed operation. Its sealed construction with nitrile rubber contact seals (2RS) provides superior contamination protection while the ABEC1 precision class ensures consistent performance. This bearing is characterized by its small cross-section (7mm bore × 11mm OD × 3mm width) and optimized internal geometry, making it ideal for space-constrained assemblies where high rotational speeds (up to 43,000 rpm) and moderate loads are present.
MR117 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| MR117 | Basic bearing designation indicating metric dimensions (7mm bore, 11mm OD, 3mm width) | Standardized interchangeability and precise dimensional control |
| 2RS | Double rubber contact seals on both sides | Excellent protection against contaminants and lubricant retention |
MR117 2rs Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The deep groove raceway design with 9 precision chrome steel balls (1.2mm diameter) provides excellent radial load capacity (87 lbf dynamic rating) while accommodating minor misalignments.
Enhanced Sealing Performance: The double nitrile rubber contact seals (2RS) create an effective barrier against dust, moisture, and other contaminants while retaining lubrication, extending service life in challenging environments.
High-Speed Capability: The stainless steel cage maintains ball spacing and stability at high rotational speeds up to 43,000 rpm, ensuring smooth operation and reduced vibration.
Precision Manufacturing: Manufactured to ABEC1 tolerance class with MC3 radial internal clearance (0.002-0.013mm), delivering consistent performance and reliable operation in precision applications.
MR117 2rs Bearing Typical Application Areas
- Small Electric Motors: Brushless DC motors, stepper motors, and miniature motor applications
- Precision Instruments: Optical encoders, measuring devices, and laboratory equipment
- Office Automation: Printers, scanners, and copier mechanisms
- Medical Devices: Small pumps, dental handpieces, and diagnostic equipment
- Consumer Electronics: Cooling fans, small drives, and robotic mechanisms
