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Rexnord
®
Planetgear™ 7000 Series Speed Reducer s Owners Manual
Sizes Neptune, Neptune Plus, Orion Plus, Saturn Plus & Titan Plus (Page 21 of 32)
Rexnord
158-170
3001 W. Canal St., Milwaukee, WI 53208-4200 January 2015
Telephone: 414-937-4359 Fax: 414-937-4359 www.rexnord.com Supersedes 11-12
19. With an arbor press or a hydraulic press, push on the
inboard end of the shaft to relieve the bearings.
NOTE : A popping noise will sound when bearings are
relieved. If the noise does not occur , an alternative
way to determine if the bearings have been relieved is
if the housing rotates freely on the bearings.
20. Reference Axial Bearing Clearance, Section 6.4 for
proper bearing endplay.
6.3.6 ASSEMBLING INPUT OR OUTPUT
SHAFT ASSEMBLIES (Neptune and
Neptune Plus Input and Output)
1. Clean bearing surface on shaft.
2. Make sure bearing cups are clean and installed
properly in housing; reference Section 6.3.3.
3. Set shaft on end so that shaft is resting on spline end.
4. NEPTUNE AND NEPTUNE PLUS OUTPUT ONLY —
Clean and place bearing spacer onto shaft.
5. Place the inboard bearing cone squarely on the
outboard end of the shaft with the smaller diameter of
the bearing facing outboard; reference Figure 6.3.6.1.
OUTBOARD END OF SHAFT
NOTE : DO NOT APPLY NEVERSEIZE TO THREADS
INBOARD
BEARING CONE
NEPTUNE &
SATURN OUTPUT
APPLY NEVERSEIZE
TO SHAFT
SUPPORT PILOT
(NOT TO EXCEED
SHAFT SPLINE HEIGHT)
BEARING
SPACER
SHAFT SPLINE
Figure 6.3.6.1—Placement of Inboard Bearing Cone on
Shaft
6. With an arbor press or a hydraulic press carefully
push bearing cone until it bottoms on shaft shoulder or
bearing spacer.
NOTE : DO NOT push on bearing rollers or bearing
cage; reference Figure 6.3.6.2 for location.
BEARING
ROLLERS
BEARING
CONE
BEARING
CAGE
Figure 6.3.6.2—Location of Bearing Cage and Roller
Bearing
7. With a 0.001” or 0.040 mm feeler gage, make sure that
there is no gap between the shaft shoulder or bearing
spacer, and the bearing cone to insure proper cone
seating; reference Figure 6.3.6.3.
INBOARD
BEARING CONE
CHECK
THIS AREA
FOR GAP
Figure 6.3.6.3—Checking for Zero Clearance with Feeler
Gauge
NOTE: Any gap between shaft and bearing cone can
result excessive axial bearing clearance or bearing
misalignment and ultimately result in premature bearing
damage.
8. Carefully set the housing, outboard side face up, onto
the inboard bearings.
NOTE : It is helpful to use a crane to lift hub onto shaft;
reference Figure 6.3.6.4.
OUTBOARD SIDE
CHAIN
EYE BOLT
INBOARD
BEARING CONE
Figure 6.3.6.4 — Placing Housing onto Shaft Assembly
9. While rotating the housing on bearings, apply clean oil
to the bearings.
10. Place the outboard bearing cone squarely on the
outboard end of the shaft with the smaller diameter
of the bearing facing the inboard; reference Figure
6.3.6.5.
OUTBOARD END OF SHAFT
NOTE: DO NOT APPLY NEVERSEIZE TO THREADS
OUTBOARD
BEARING CUP
NEPTUNE &
NEPTUNE PLUS OUTPUT
APPLY NEVERSEIZE
TO SHAFT
INBOARD
BEARING CUP
Figure 6.3.6.5—Placing Outboard Bearing Cone onto
Shaft