Pulsafeeder Pulsalube 8 GS Ultra, Operation & Maintenance Manual

Page: 148 / 198

DRIVESYSTEMS
NORD GRIPMAXX
™
RETAIN FOR FUTURE USE
1. General information
The NORD GRIPMAXX
™
keyless bushing system is adaptable
to most all NORD shaft-mounted reducers. The bushing sys-
tem offers interchangeable bushings to accommodate a large
range of driven machine-shaft sizes.
The unique design of the NORD GRIPMAXX
™
bushing system
offers a number of distinct advantages as follows:
• The NORD GRIPMAXX
™
allows the machine builder to
utilize standard cold finished shaft stock, without the need
for additional shaft machining or shaft keys.
• It uses a NORD shrink disc to apply a high-capacity, zero
backlash, interference fit to the driven machine shaft,
while eliminating the typical assembly and disassembly
challenges of using interference fits.
• The built in clearance between the customer shaft and
the bushing system helps to ensure easy installation and
removal of the gearbox. To help ensure easy removal, the
NORD
GRIPMAXX
™
bushings are prepared with a special
low-wear, corrosion-resistant hardened surface treatment,
that minimizes the formation of shaft corrosion and
fretting.
• The NORD GRIPMAXX
™
is ideal for start-stop operation
and bi-directional loading because it does not depend on
keys or keyways that transmit torque, which can also can
become loose or deform when subjected to these loading
conditions.
• Unlike the typical conical or tapered bushing kits, the
NORD GRIPMAXX
™
design allows a tight fit against a
shouldered machine shaft.
• The torque bushing and support bushing are the same
part and are fully interchangeable with one another.
2. GRIPMAXX
™
assembly detail
3
2
1
5
6
4
3*
5
1
4
6
3*
5 1
3
Sideview of GRIPMAXX
™
5
6
1
Assembled GRIPMAXX
™
[1] NORD Shrink Disc
[2] Locking Screw
[3] Bushing (Torque Side)
[3*] Bushing (Support Side) [4] Clamp Ring
[5] Gear Reducer Hollow Shaft
[6] Machine Shaft
IMPORTANT NOTE
NORD recommends that the machine shaft have a yield
strength of at least 52,260psi (360N/mm
2 )
IMPORTANT NOTE
Observe the recommended machine shaft tolerances in
table 1, page 2.
WARNING
The supporting solid shaft or driven machine shaft must
be of adequate size and strength to withstand normal
operating loads and peak loads without damage to
itself or any of the system components.
U10310 - 1 of 3
www.nord.com/docs 03.04.14
NORD Gear Corporation
Toll Free in the United States: 888.314.6673
NORD Gear Limited
Toll Free in Canada: 800.668.4378