Design Variations Meet Wide
Range of Mixer Applications
Nord Drivesystems now offers several variations
of its VL heavy-duty, spread-bearing
designs for mixers, all which have specific
features and advantages based on the specific
mixing and agitating application
requirements. The first variation (VL2)
offers reinforced output shaft bearings with
increased bearing distance. This design
accommodates high overhung thrust loads
and allows for longer bearing service life.
Included with the VL2 design is a grease
fitting for the lower bearing and a removable
plug to allow excess grease to purge
from the bearing cavity. The VL3 dry cavity
design adds additional oil leak protective
measures to the VL2 spread bearing
design. NORD’s Quadralip sealing system
prevents oil from leaking from the gearbox
into the VL2 flange. If oil does happen to
leak past the Quadralip seals, it flows down
to an oil slinger mounted onto the shaft. As
the shaft rotates, the oil will sling off into
the dry cavity. A sight tube is provided in
order to monitor the dry cavity.
The VL4 is a heavy-duty drop-bearing
model. This version provides the highcapacity
bearing design of the VL2/VL3
with the addition of a drywell. While most
drywell designs simply have a small oil
dam tube inside the gear unit, Nord’s stationary
oil dam tube extends vertically
above the top of the gear unit housing.
This, according to the supplier, provides a
much higher degree of leak safety. A sealing
O-ring at the top of the oil dam adds
maximum protection.
www.nord.com
As featured in Womp 2016 Vol 03 - www.womp-int.com
