Miniature Bearings Australia
6903-2RS-T9H-ECO - Datasheet
ECO
Category Information
Bearings - Single Row Ball - Unflanged - Precision - High Speed CageHigh Speed Cage Precision Unflanged Single Row Ball Bearings. This product group includes bearings with cages for high speed applications, including phenolic, nylon and polyamide.
- 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 in this group have various types of high speed cages.
- Speed ratings range from 20 percent to 80 percent increase on standard cage types.
- See individual datasheets, available on request.
- Items with high speed cages usually have the suffixes T9H, TNH, TW or KC
- This category does not include ceramic hybrid bearings with high speed cages. These are listed under Bearings - Ceramic Hybrid
Product Data
Double black rubber sealed economy bearing with a high speed polyamide retainer
- ID (d) : 17.000 mm
- O.D. (D) 30.000 mm
- Width (B) 7.000 mm
- Precision Grade Economy
- Closure Type 2RU
- Bearing Type Radial
- Material Chrome Steel SAE 52100 - High Speed Polyamide Cage
- Lubrication Type Grease
- Lubrication Name Standard Unspecified
- Basic Part 6903
- Limiting Speed 23772.8
- Cage Type Polyamide
- Static Load Rating KGf 248.9
- Dynamic Load Rating KGf 444.6
- Radii 0.30 mm
- Inner Shoulder (UI) 21.00mm
- Outer Shoulder (UO) 27.80 mm
- Number of Balls 11
- Clearance ECO (3 to 33)
- Precision Grade ECO
- Closure Type 2RS
- 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
- Pushbike Bearings
- RC Nitro Engine Parts
- Fairwheel® Bicycle - Size List - High Speed Bearing 17-30-7mm
- Chapman® - DC - 28 - Replacement Bearing
- Enya® - X 2Cand3 - 19 - Replacement Bearing
- Fitzpatrick - 61 With Side Exhaust and ABC Engine - Replacement Bearing
- Irvine® - 15 All Models - Replacement Bearing
- Irvine® - 46 All Models - Replacement Bearing
- K.B - 8702 - 21 - Replacement Bearing
- K.B - Outboard Late Model Marine - 40 - Replacement Bearing
- K.B - Outboard Marine - 3.5 - Replacement Bearing
- K.B - Outboard Marine Late Model - 90 - Replacement Bearing
- K.B - Pro - 67 - Replacement Bearing
- K.B - SS Marine - 7.5 .45CC - Replacement Bearing
- OS Engines® - FSR ABC - 61 - Replacement Bearing
- OS Engines® - FSR Gold Head - 45 - Replacement Bearing
- OS Engines® - FSR RC Special - 90 - Replacement Bearing
- OS Engines® - FSR Ring ED - 108 - Replacement Bearing
- OS Engines® - RF ABC RC - 40 - Replacement Bearing
- OS Engines® - RF-H Pump - 21 - Replacement Bearing
- OS Engines® - RF-H RC With 7H - 21 - Replacement Bearing
- OS Engines® - RF-P - 61 - Replacement Bearing
- OS Engines® - RF-P Ring Hanno Special - 61 - Replacement Bearing
- OS Engines® - SF ABC RC W-Muffler - 61 - Replacement Bearing
- OS Engines® - SF-HP RC - 46 - Replacement Bearing
- OS Engines® - SF-P RC/Pump - 46 - Replacement Bearing
- OS Engines® - VF-H ABC - 25 - Replacement Bearing
- OS Engines® - VF-H RC With 7H - 25 - Replacement Bearing
- Saito® - 4C New - 45 - Replacement Bearing
- Saito® - FA 80 - Replacement Bearing
- YS - 2-C - 24.7 - Replacement Bearing
- YS - 4-C - 140 - Replacement Bearing
- YS - 91 All Models - Replacement Bearing
Cross References
- Fairwheel Bicycle 6903
- 6903T9HRSECO
- 6903T9H2RSECO
- 6903 Basic Size Ref
