Miniature Bearings Australia
MR254-14-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 some axial loads 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
- ID (d)
:
14.000
mm
(Equiv. 0.551 in.) - OD (D)
25.400
mm
(Equiv. 1 in.) - Width (B)
6.000
mm
(Equiv. 0.236 in.) - Precision Grade Economy
- Closure Type Open
- Bearing Type Radial
- Material Chrome Steel SAE 52100 - High Speed Polyamide Cage
- Lubrication Type Grease
- Lubrication Name Standard Unspecified
- Basic Part MR25.4-14
- Limiting Speed 22375.9
- Cage Type Polyamide
- Static Load Rating KGf 142.5
- Dynamic Load Rating KGf 279.3
- Radii Undefined mm
- Inner Shoulder (UI) Undefinedmm
- Outer Shoulder (UO) Undefined mm
- Number of Balls Undefined
- Clearance ECO (3 to 33)
- Precision Grade ECO
- Closure Type Open
- Max Temperature 120 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 Nitro Engine Parts
- Bergonzoni - XR21 - 28 RR Engine - Bearing 14-25.4-6mm
- JP Racing - PR.21 P5 Off Road - 95 - Bearing 14-25.4-6mm
- JP Racing - PR.21 Race World - 95 - Bearing 14-25.4-6mm
- Mugen - MR21 BO1 - 90 - Bearing 14-25.4-6mm
- Mugen - MR21 R01 - 15 - Bearing 14-25.4-6mm
- Nova Rossi - 09.20-C - 25 - Bearing 14-25.4-6mm
- Nova Rossi - BS21SB - 2000 - Bearing 14-25.4-6mm
- Nova Rossi - JP Pro - 12 2.1CC - Bearing 14-25.4-6mm
- Nova Rossi - PR21 P5T/N Rex - Rear Bearing 14-25.4-6mm
- Nova Rossi - PR21P5/N Rex - 21 - Bearing 14-25.4-6mm
- Nova Rossi - PR21P5T/N Rex - 12 - Bearing 14-25.4-6mm
- Nova Rossi - PR21R1WC Rex - 21 - Bearing 14-25.4-6mm
- Nova Rossi - PR321P Rex - 21 2.5CC - Bearing 14-25.4-6mm
- Nova Rossi - PR421B Rex - 21 2.5CC - Bearing 14-25.4-6mm
- Nova Rossi - PR421P Rex - 21 2.5CC - Bearing 14-25.4-6mm
- Nova Rossi - PT21P5 Top - 21 2.5CC - Bearing 14-25.4-6mm
- Nova Rossi - PT21P5T Top - 21 2.5CC - Bearing 14-25.4-6mm
- Nova Rossi - PT21R1WC Top - 21 2.5CC - Bearing 14-25.4-6mm
- Nova Rossi - PT21RR1/N Top - 21 - Bearing 14-25.4-6mm
- Nova Rossi - PT321P Top - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - PT421P Top - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - RBC5BB - 28 4.6CC - Bearing 14-25.4-6mm
- Nova Rossi - RX21-FR/N - 12 2.1CC - Bearing 14-25.4-6mm
- Nova Rossi - RX21MR2/N - 12 2.1CC - Bearing 14-25.4-6mm
- Nova Rossi - RX21P5 - 12 - Bearing 14-25.4-6mm
- Nova Rossi - RX21P5T - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - RX21R1WC - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - RX21RR1/N - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - RX321P - 21 - Bearing 14-25.4-6mm
- Nova Rossi - RX421P - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - S421B - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - S421B/N - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - S421R - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - T421B Top - 21 3.5CC - Bearing 14-25.4-6mm
- Nova Rossi - T421R Top - 21 3.5CC - Bearing 14-25.4-6mm
- OS - VG-P - 30 - Bearing 14-25.4-6mm
- OS - VZ-B V-Spec T 21 - 46 - Bearing 14-25.4-6mm
- OS - VZ-R P With 20K - 21 - Bearing 14-25.4-6mm
- Picco - P3 - 12 - Bearing 14-25.4-6mm
- Picco - P7-Evo - 21 - Bearing 14-25.4-6mm
- Picco - P7-R - 21 - Bearing 14-25.4-6mm
- Picco - XP - 21 - Bearing 14-25.4-6mm
- RB - 3.5cc 21 - Rear Bearing 14-25.4-6mm
- RB - C4 - 32 - Bearing 14-25.4-6mm
- RB - C5 Buggy - 12 - Bearing 14-25.4-6mm
- RB - C5 Rody - 15 - Bearing 14-25.4-6mm
- Rex Nova Rossi - PR21 P5T/N - Rear Bearing 14-25.4-6mm
- Serpent - Mega ZX 12 - 90 - Bearing 14-25.4-6mm
- SVN Crono - RS7 - 40 - Bearing 14-25.4-6mm
- Trinity - Adam Drake - 3.3 - Bearing 14-25.4-6mm
Cross References
- NOVA ROSSI 2422
- BOCA MR25414-TH9-C3
- MR25414TH9C3
- MR25.4-14
- MR25.4-14 Basic Size Ref
