Product Details
BEARING SPECIFICATIONS
Technical Data
Overview |
|
|---|---|
| Part Number | MR106-2RS |
Characteristics |
|
| System of Measurement | Metric |
| Bearing Type | Ball |
| Seal Type | Seaded |
| Inner Ring Type | Standard |
| For Load Direction | Radial |
| Construction | Single Row |
| Ball Qty | 10 |
| Tolerance Class | ABEC1 |
Dimensions |
|
| Bore Dia (d) | 6mm |
| Bore Dia Tolerance | -0.008 to 0 |
| Outer Dia (D) | 10mm |
| Outer Dia Tolerance | -0.008 to 0 |
| Width (B) | 3mm |
| Width Tolerance | -0.12 to 0 |
| Ball Dia | 1.2mm |
| Radial Clearance | 0.005mm to 0.01mm |
| Radial Clearance Trade No | MC3 |
Material |
|
| Ring Material | Chrome Steel |
| Ball Material | Chrome Steel |
| Cage Material | Stainless Steel |
| Sealing Material | Nitrile Rubber |
Performance |
|
| Dynamic Radial Load | 95 lbf |
| Static Radial Load | 39 lbf |
| Max Speed (Grease) *1000rpm | 45 |
| Max Speed (Oil) *1000rpm | 52 |
| Temperature Range | -30° to 110° |
Properties |
|
| Lubrication | Required |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 0.85 g |
Technical Scribble
Documentation
Closures and Seals |
Cages and Retainers |
Tolerances and Precision |
Internal Clearance |
Lubrication |
Fitting and Mounting |
Load and Life Calculation Information |
eDrawings file (.ePRT, eASM) |
All information in this catalog has been thoroughly checked for accuracy. However, the catalog data should not be relied upon entirely for design and development purposes. NPBS® Bearings assumes no liability for possible errors or omissions. All dimensions and specifications are subject to change without notice. Contact NPBS® Bearings for the most current catalog data as it applies to you and for your application.
Material & Quality
SAE52100 Chrome Steel: Premium bearing steel - harder than tool steel
G10 Balls: Ultra-precision balls with ±0.25µm tolerance
High Carbon: Superior hardness and wear resistance
Chromium: Adds corrosion resistance and toughness
ISO Standard: Fits any 683 application worldwide
Load Rating
Dynamic Load: Maximum force while rotating. Exceeding this causes rapid wear and failure within hours.
Static Load: Maximum force when stationary. Use 80% for safety.
Calculate Your Load: Measure shaft forces, belt tensions, or gear loads. Include shock/vibration factors.
Failure Warning: Overloading causes bearing raceways to crack and balls to flatten permanently.
Speed Limits
Grease Limit: Heat generation increases exponentially above this. Grease breaks down, causing seizure.
Oil Advantage: Better heat dissipation allows higher speed. Required for high-speed spindles.
Safe Operating Speed: Use 90% of limit (52200 RPM) for maximum L10 life of 10,000+ hours.
Failure Mode: Exceeding speed causes cage failure, ball skidding, and catastrophic overheating within minutes.
Vibration Classes
V2 Grade: Standard grade - good for general applications
V3 Grade: Low vibration - like a smooth car engine
V4 Grade: Ultra-smooth - for precision instruments
Frequency Bands: Measured across different rotation speeds
Internal Clearance
C2 (Tight): Precision applications - less play, more accurate
C0 (Normal): Standard choice - works for most applications
C3 (Loose): Better for hot environments - allows thermal expansion
C4 (Exta Loose): Hot or tight-fit setups — extra room for thermal expansion
C5 (Max Loose): Extreme heat/tight fits or near-limit speeds — maximum expansion allowance
Noise Levels
Z2 Grade: Quiet as a library - good for most applications
Z3 Grade: Very quiet - like a whisper (40 dB = normal whisper)
Z4 Grade: Ultra-quiet - perfect for bedroom fans, medical equipment
Application: Ideal for sensitive environments
PRODUCT DESCRIPTION
MR106-2RS Precision Miniature Ball Bearing
Key Features
MR106-2RS is a precision miniature ball bearing manufactured to have both sides Rubber Sealed and is pre-lubricated with Grease allowing it to be ready for use upon delivery. Made from Chrome Steel, MR106-2RS is an MR Series miniature ball bearing meant for light-duty applications but despite its lightweight, can support moderate radial loads. Our MR Series Bearings have a smaller OD which assists in being able to be used in high speed applications.
- MR106-2RS Bearing – (I.D.=6mm, O.D.=10mm, Thickness=3mm).
- Bearing Steel Material – Chrome steel bearings offer excellent strength, hardness, wear resistance, and corrosion resistance, providing reliable support and optimal performance in a variety of applications.
- Double Rubber Sealed Bearings – Provides excellent protection against dust, dirt, and moisture, ensuring smooth operation and extending its lifespan. Commonly used in applications that are exposed to harsh environments such as outdoor equipment or machinery.
Applications / Industries
MR106-2RS Miniature Ball Bearings are used in a range of applications from Electric Motors to Dental Equipment, Surgical Instruments, RC Cars, RC Helicopters, RC Planes, RC Trucks, Lab Equipment, Align Trex 600, Jewelry, Hand Piece, Radio Controlled Models, Anemometers, Small Motors, among others.
FREQUENTLY ASKED QUESTIONS
Bearing Selection & Replacement
Why This Matters Proper shaft tolerance ensures correct interference fit, preventing slippage while allowing thermal expansion.
How To Handle It Measure shaft diameter with precision micrometers, ensuring it falls within h6 tolerance range before installation.
Pro Tip: Use h6 tolerance for standard applications, h5 for high-precision requirements, and h7 for loose fits.
Why This Matters Bearing dimensions are critical for proper fit, load distribution, and system performance.
How To Handle It Always use exact MR106-2RS replacement or consult engineering specifications for alternative solutions.
Pro Tip:Keep spare MR106-2RS bearings in stock to avoid production delays and ensure consistent quality.
Why This Matters Load capacity determines bearing suitability for specific applications and operating conditions.
How To Handle It Calculate actual application loads and ensure they remain within 0.496kN dynamic limit with appropriate safety factors.
Pro Tip:Use MR106-2RS bearings for applications requiring up to 0.496kN load capacity with standard safety margins.
Installation & Maintenance
Why This Matters Proper shaft tolerance ensures correct interference fit, preventing slippage while allowing thermal expansion.
How To Handle It Measure shaft diameter with precision micrometers, ensuring it falls within h6 tolerance range before installation.
Pro Tip: Use h6 tolerance for standard applications, h5 for high-precision requirements, and h7 for loose fits.
