Elevators - Gearless and Geared

Elevators Gearless Machines Vs Elevator Geared Machines

Elevator Geared Machine with Machine Room

Geared machines have gearbox and routine oiling is required.
Risk of oil contamination and spill is high.
High Energy consumption.
Limited elevator floor travel.
For high rise towers elevator vibrations are possible.
Low efficiency as compared to Gearless Machine.
Installation  and service costs are higher.
Elevator machine room space required is more as machines are bigger in size.
Harmonics noise is more.
Power consumption is high due to more torque required and efficiency is lower.
Due to high maintenance, doesn't have  a long life.
Electromagnetic brakes are used.
Brake adjustment is less convenient.
Proper routine maintenance required due to more wear and tear.
Periodic oiling and lubrication required.

Elevator Gearless Machine With Machine Room

Gearless machines do not have a gearbox hence, they do not require any type of oiling.
No risk of oil contamination or spillage to the ground.
Less energy consumption, nearly 50% saving in energy costs.
Nearly unlimited elevator floor travel without vibration.
High efficiency as compared to geared machine.
Easy to install and service cost is lower.
Elevator machine room space required is less because machines are small & compact.
Harmonics noise is totally eliminated.
Minimum power consumption and maximum torque & high efficiency.
Maintenance is less and longer life span.
Disc break technology for instant stop.
Jerkless elevator operation with ride comfort and ride quality.
Elevator brake adjustment is more convenient & noise free.
Frequent elevator stops & start operation will not affect the motor.
Hence negligible wear and tear and lower maintenance is required.
Oiling & Lubrication is totally eliminated.