Efficiency of Small Machine Elements
Friction and efficiency in bearings and roller chains.
Typical efficiencies of well lubricated small machine elements:
- ordinary bearings : 95 - 98%
- roller bearings : 98%
- ball bearings : 99%
- spur gears with cut teeth including bearings : 99%
- bevel gears with cut teeth including bearings : 98%
- belts : 96 - 98%
- high-class silent power transmission chain : 97 - 99%
- roller chains : 95 - 97%
- bicycle derailer : 87 - 97%
- bicycle gear hub : 86 - 95%
Related Topics
-
Mechanics
The relationships between forces, acceleration, displacement, vectors, motion, momentum, energy of objects and more.
Related Documents
-
Belt driven Fans - Fan vs. Motor Speed
Fan vs. motor speed in belt driven fans. -
Belt Transmissions - Speed and Length of Belts
Calculate length and speed of belt and belt gearing. -
Belts - Power Transmission and Efficiency
Calculate belts power transmission and efficiency -
Electric Motors - Efficiency
Calculate electric motor efficiency. -
Engine & Gear Oil - Recommended Viscosity vs. Outside Temperature
Oil viscosity vs. temperature. -
Friction - Friction Coefficients and Calculator
Friction theory with calculator and friction coefficients for combinations of materials like ice, aluminum, steel, graphite and many more. -
Gear Trains - Bicycle Gearing Calculator
Gear train transmissions - bicycle gearing. -
Gears
Gears effort force vs. load force. -
Industrial Lubricants - Viscosities vs. ISO-VG Grade
ISO-VG viscosity grades for industrial lubricants. -
Rolling Resistance
Rolling friction and rolling resistance.