683 Open Miniature Ball Bearing 3x7x3mm R730

Model: MR106-2RS
  1. Also available in 52100 Chrome Steel
  2. ABEC Grades 1, 3, 5, 7, and 9 are available. Also, the equivalent ISO classes.
  3. Two metal shields = (ZZ), also available with a single metal shield = (Z).

 

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Product Details

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

MR106-2RS Mini Ball Bearing 6x10x3 Sealed 676-2RS

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
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
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

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.