Installation and Operation Instruction
For Housing Freewheels FHD 1000 to FHD 18000
E 08.794e
Issue: 21.12.2021
Version : 03
drawn: KISR
checked: HEUT pages: 14
page: 6
4. Types
Housing Freewheels FHD are available in the type with roller cages. This type is characterized by
very low power loss at high speed Operation.
Please note!
Further information especially on design, function and selection, permissible torques
as well the lifting speeds and maximum drive speeds of these freewheels is provid-
ed in RINGSPANN E-sheet E08.096. Please contact RINGSPANN GmbH if you
need assistance.
5. General instruction
The Housing Freewheels FH are mounted in a rugged cast iron housing in which the input and
output shaft are supported. The housing serves as an oil reservoir.
The input and output shaft should be connected via suitable separate shaft couplings with the
machine or the drive
Caution!
The maximum permissible freewheel torque must not be exceeded due to torque
peaks in specific applications.
To avoid torque peaks that could harm the freewheel, we recommend the use of
torsionally stiff shaft couplings.
The maximum freewheel torque should be calculated according to RINGSPANN E-
sheet E08.096. Please consult with RINGSPANN if you need assistance.
Freewheel damage resulting by excessive torque peaks impair component
function and can result in excessive overheating of the Housing Freewheel!
Caution!
If the system is exposed to axial and/or radial loads, the roller bearings in the free-
wheel should be checked with reference to the rules for calculation provided
by the bearing manufacturer. It is essential to ensure that bearings will not be dam-
aged
.
Bearing damage can result in overheating and the impairment of freewheel
function!
