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Nicotra RZR Series User Manual

Nicotra RZR Series
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Mounting Instructions EN
MA-CFB_BEARING 4.4 – 02/2020 3
Self-aligning bearing
with cast housing and tubular strut support
RZR 15-0400/-1000 (IWN)
RZR 19-0400/-1000 (IWN)
TZR B5-0400/-1000 (IWN)
(Page 1 of 2)
Notes
The built-in self-aligning bearings with clamping sleeve are designed for a nominal service life (L
10h
according to DIN ISO 281-
1) of 20,000 respectively 40,000 operating hours. Maintenance must be carried out according to the chapter on
upkeep/maintenance in the RZR / RER operating instructions. If it is required to change the bearings, the safety
instructions stipulated in the RZR / RER operating instructions must be followed without fail!
General info
To expose the fan bearings, various dismounting work (e.g. disconnection from the mains, belt drive, protective and
monitoring devices, ducts), must be performed in compliance with the safety and accident protection regulations and the local
and structural conditions.
Dismounting the bearing
1. Unscrew the bearing cover fastening screws (3) and remove the bearing cover (4)
2. Bend up the safety plate of the sleeve nut and loosen the sleeve nut (6) (approx. 2-3 rotations) until the front face is flush
with the clamping sleeve
3. Set blow cap or pipe section against the sleeve nut and loosen the clamping sleeve with jarring blows
4. Prop and secure running wheel or shaft
5. Unscrew the star-shaped support fastening off the fan housing and remove star-shaped support.
Now the bearing can be replaced.
A-Bearing
(
drive side
)
B-Bearin
g
Spring washer
(only drive site)
10 11

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Nicotra RZR Series Specifications

General IconGeneral
BrandNicotra
ModelRZR Series
CategoryFan
LanguageEnglish

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