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 some axial loads 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
Ceramic balls.
- ID (d)
:
4.000
mm
(Equiv. 0.157 in.) - OD (D)
7.000
mm
(Equiv. 0.276 in.) - Width (B)
2.500
mm
(Equiv. 0.098 in.) - 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 - Bearing
- Align - Trex 600 CF - Bearing
- AXI - 2808-24 - 24
- Gaui - Hurricane 550 - 550 Bearing 4-7-2.5mm
- Schluter - Eolo Pro - Bearing
- Schluter - Eolo R22 - Bearing
- Schluter - Eolo Spirit Pro - Bearing
- Schluter - Spirit Pro - Bearing
- Synergy - N9 - Bearing
- Thunder Tiger - Raptor 30 - 30
- Thunder Tiger - Raptor 50 SE - 50
- Thunder Tiger - Raptor 50 SE Complete Kit - 50
- Thunder Tiger - Raptor 50 Titan - Bearing
- Thunder Tiger - Raptor 50 V2 - Rubber Sealed Bearing 4-7-2.5mm
- Thunder Tiger - Raptor 60 V2 - Rubber Sealed Bearing 4-7-2.5mm
- Thunder Tiger - Raptor 90 SE - Rubber Sealed Bearing 4-7-2.5mm
Cross References
- MR74A
- MR74A Basic Size Ref
