Ball Bearing
Free-Wheel Clutches
INSTALLATION
Mounting tolerance:
bore D = N7 for size 6207 and 6208 bore = N6
shaft d = n6
Keyway specifications according to DIN 6885, Bl. 3 (P9) with
back clearance, for size 6207 to DIN 6885 Bl. 1.
Machine parts, in which Free-wheel Clutches are pressed in
or on can be of ferrous or nonferrous material. If you considered
to use nonferrous material please contact our technical staff
first.
For pressed in or on rings, no retainers are necessary for
axial or radial security. During mounting do not apply pressure
to bearing balls. Even the keywayed inner rings of series
FKN 62.. have to be press fitted for proper function. Press fit
will be achieved by using the correct tolerance of the shaft
"n6"!
Attention: Please take care for total
cleaning of Free-wheel rings and mating parts before press fitting
(no grease particles left in the press fit area).
After installation a radial clearance between C2 and C5 will
be reached. To create a clearance of C2 you should produce
your shaft at the highest point and your housing at the lowest
point of the allowed tolerances.
The RSR-seals used for these clutches would seal against
dust and grease lubrication. Oil lubrication and merging into
liquids is not possible. The "open" and "2RS"
style are the standard program. With these types it is not
necessary to specify clutch engagement direction.
Engagement direction:
With the
"RS" style it is necessary to specify clutch engagement
direction. A single seal is always mounted beside the clutch,
not beside the ball bearing.
 Engagement
direction "right": Engagement direction of the inner
ring, view at the seal
Engagement direction "left": When ordering a Free-wheel Clutch
with opposite engagement, the suffix "L" must be
placed after the catalog number.
Lubrication: GMN Clutches (except the sealed clutches of series
FK 62.. and FKN 62..) are shipped rust protected - not lubricated.
Sealed ball bearing clutches "RS" and "2RS"
are shipped grease lubricated for life time.
For further information please see our indications of lubrication.
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