Miniature Bearings Australia
SMR74A-CSN-2RY-ECO - Datasheet
ECO
Category Information
Bearings - Single Row Ball - Unflanged - Precision - Ceramic HybridCeramic Hybrid Precision Unflanged Single Row Ball Bearings. Steel Races with Si3N4 Ceramic Balls
- Single row radial ball bearings are arguably the most common, widely used type of bearing. They consist of an inner ring, an outer ring, a set of balls, and a cage that retains the balls in a circular path.
- Single row radial ball bearings are commonly used in a wide range of applications, including electric motors, fans, pumps, gearboxes, agricultural equipment, appliances, and automotive components.
- They are versatile, cost-effective bearings that provide reliable support for radial loads and minimal axial load in one direction. An expanded range may be available on special order. Please enquire.
- Bearings with steel races and ceramic balls.
- For standard bearings, the balls are usually one of the first components to show wear.
- Ceramic balls are harder than steel and do not wear as easily.
- Items with high speed cages have the suffixes T9H, TNH, TW or KC
Product Data
Double black rubber sealed economy stainless ceramic-hybrid bearing
- ID (d) : 4.000 mm
- O.D. (D) 7.000 mm
- Width (B) 2.500 mm
- Precision Grade Economy
- Closure Type 2YS
- Bearing Type Radial
- Material Stainless Steel AISI 440C - Ceramic Si3N4 Balls
- Lubrication Type Grease
- Lubrication Name Standard Unspecified
- Basic Part MR74A
- Limiting Speed 38760
- Cage Type Standard
- Static Load Rating KGf 8.4
- Dynamic Load Rating KGf 19.8
- Radii 0.10 mm
- Inner Shoulder (UI) 4.80mm
- Outer Shoulder (UO) 6.30 mm
- Number of Balls 11
- Clearance ECO (5 to 23)
- Precision Grade ECO
- Closure Type 2RY
- Max Temperature 80 Deg. C
Product Compliance and Data
Additional Resources
- Catalogue: Ceramic Bearings Catalogue
- Catalogue: Plastic Bearings Catalogue
- Catalogue: Standard Bearings Catalogue
- General: Bearing Cleanliness
- General: Bearing Clearances
- General: Bearing Flanges & Snap Rings
- General: Bearing Retainers (Cages)
- General: General Loads Information
- General: Lubrication
- General: Prefix & Suffix Guide
- General: Static vs Dynamic Loads
- Materials: 316 Stainless
- Materials: CASSTOP Anti-Corrosion Bearing Material
- Materials: Ceramic vs Ceramic Hybrid
- Materials: Ceramic Bearings in Vibratory Applications
- Materials: Ceramic Hybrid Bearings in Vibratory Applications
- Materials: General Bearing Materials
- Materials: Magnetism & Bearings
- Precision: 316 Stainless & Plastic Bearing Tolerances
- Precision: ABEC Basic Information
- Precision: Precision Bearing Tolerances
- Problem Solving: Bearing Failure
- Problem Solving: Fatigue (L10 Life)
- Problem Solving: Noise
Applications & Uses
- RC Helicopter Parts
- Align® - Trex 450 SE Special V2 - Replacement Bearing
- Align® - Trex 600 CF - Replacement Bearing
- AXI - 2808-24 - Replacement Bearing
- Gaui® - Hurricane 550 - Replacement Bearing
- Schluter® - Eolo Pro - Replacement Bearing
- Schluter® - Eolo R22 - Replacement Bearing
- Schluter® - Eolo Spirit Pro - Replacement Bearing
- Schluter® - Spirit Pro - Replacement Bearing
- Synergy® - N9 - Replacement Bearing
- Thunder Tiger® - Raptor 30 - Replacement Bearing
- Thunder Tiger® - Raptor 50 SE - Replacement Bearing
- Thunder Tiger® - Raptor 50 SE Complete Kit - Replacement Bearing
- Thunder Tiger® - Raptor 50 Titan - Replacement Bearing
- Thunder Tiger® - Raptor 50 V2 - Rubber Sealed Bearing
- Thunder Tiger® - Raptor 60 V2 - Rubber Sealed Bearing
- Thunder Tiger® - Raptor 90 SE - Rubber Sealed Bearing
Cross References
- MR74A
- MR74A Basic Size Ref
