Bush Type Flexible Couplings
The function of a flexible coupling is to transmit torque
from one shaft to another in cases where limited misalignment may occur and also to absorb shock
loads.
The Fenner Bush Type Flexible Coupling of the cushioned drive type, transmits the torque through high
tensile steel bolts to the machine input shaft. Highly developed rubber compounds are used in bushes
to absorb shock loads, torsional vibrations and slight misalignments.
Simple and compact in construction, the Fenner Coupling is capable of transmitting high torques at
maximum speeds. The flanges are manufactured with cast iron, grade 20 of IS. 210. This type of
coupling permits drive in either direction and requires neither lubrication nor adjustment after
fitting.The flexible bushes remain unaffected by water. dust and atmospheric conditions.
Two series are now available in Bush Type Flexible Couplings: a. FBC series and b. EFBC series
The EF-BC Bush Type Flexible Coupling of the cushioned drive type transmits the
torque through high tensile steel bolts between Driving & Driven Shafts. Polymer compounds are
used to absorb shock loads, torsional vibrations and misalignments.
Simple and compact in construction, the coupling is capable of transmitting high torque at maximum
speeds. The flanges are manufactured with Cast Iron grade 20 as per IS 210 for Light series & for
Heavy series both in Cast Iron & Cast Steel.
This type of coupling permits drive in either direction and requires neither lubrication nor
adjustment after fitting. The flexible barrel bushes are designed for long lasting performance
against weathering conditions.
Machine which is to be coupled by flexible couplings should first be aligned with all possible
accuracy. The capacity of the coupling will then deal with misalignments which occur by reason of
temperature variations or heavy shaft loading. Setting of machine foundations or bearing wear will
also cause extra loading to be imposed on the coupling. Any or all of these conditions can occur
once the machines have been coupled.
Flanges are bored to suit requirements and are keywayed to British Standard Specification, unless
otherwise stated. They can also be supplied with the listed minimum bore to permit machining on
site. Power requirements for the standard couplings range from 1.0 kW to 13613 kW at 100 rpm. The
size ranges from EFBC 00095 to EFBC 02000.