Appendix K • Falk Quadrive Shaft Mounted Drives Model A
(Page 46 of 52)
Sizes 5107-5315
378-200
(PN-2128394)
Rexnord
January 2019
3001 W. Canal St., Milwaukee, WI 53208-4200 USA
Supersedes 04-17
Telephone:
414-342-3131
Fax:
414-937-4359
www.rexnord.com
Drive Shaft Recomendations Using (TCB) Kit
INTRODUCTION —
These instructions are for use when a
screw conveyor 5107 - 5315JSC drive is to be used and the
following conditions exist: Falk standard or 316 stainless steel
JSC tapered drive shafts can not be used due to special
extension dimensions or materials; or manufacturing a
special tapered drive shaft is not feasible Use this appendix
to retrofit existing applications or for outfitting new installations
where the above conditions warrant For tapered shaft
recommendations, see Appendix H
This appendix will allow the use of a straight (non-tapered)
drive shaft with a special bushing conversion kit on screw
conveyor applications This kit provides one bushing bore per
drive size as shown in Table 4 Provided in this appendix are
dimensions for drive shaft recommendations and instructions
for the installation and removal of the assembly
FIGURE 2 —
The hollow shaft of the drive has a tapered
bore which accepts the tapered bushing When the
bushing is drawn into the taper, a clamping force is applied
to the drive shaft The drive shaft is drawn into the hollow
shaft via a fastener in the thrust plate The bushing seats
against a shoulder on the drive shaft and is drawn into the
drive with the shaft Removal is accomplished by using a
jackscrew in the thrust plate and forcing the drive shaft out
of the drive The retaining ring in the drive shaft assures
that the bushing will be removed along with the shaft
The packing gland sealing option (sizes 5107-5315) is
usable with the bushing kit, but the clamp ring must be
assembled from the extension end of the drive shaft on
sizes 5307 and 5315
DRIVE SHAFT RECOMMENDATIONS —
The
recommendations for the drive shaft consist of two major
features The first is the shoulder which must be provided
in the location shown in Figure 2 This shoulder provides
the backing necessary to draw the bushing into the taper A
permanently fixed shoulder must be provided in order for this
design to be effective The shoulder may be a welded collar
or an integral step SET COLLARS ARE NOT ACCEPTABLE
A retaining ring may be used in the drive shaft, to provide the
shoulder, but stress concentrations can occur at the groove
and therefore shaft stresses must be checked The second
major feature on the shaft is the retaining ring groove in the
shaft end This feature is recommended to ensure positive
removal of the bushing when the drive shaft is removed from
the drive The threaded hole in the end of the drive shaft
accepts the thrust plate fastener
WARNING:
Lock out power source and remove all external
loads from system before servicing drive or accessories.
INSTALLATION PROCEDURE —
With the shaft manufactured
per the recommendations shown, proceed as follows:
5107-5215JSC —
The seal housing may be assembled to
the drive before or after the drive shaft is installed into the
drive, depending on the shaft extension diameter
5307-5315JSC —
The seal housing must be assembled
over the drive shaft from the extension end of the shaft, or
the shaft shoulder must be fixed in position after the seal
housing is assembled over the drive shaft (see Figure 2)
ALL JSC DRIVES —
Slide the bushing (large end first)
onto the drive shaft until it contacts the shoulder on the
shaft Insert the key through the bushing and into the
drive shaft keyway Install the retaining ring into the
groove
in the drive shaft Line up the keyway in the drive hollow
shaft with the key in the drive shaft and slide shaft/bushing
assembly into the hollow shaft Attach the seal housing to
the drive with the fasteners provided
Tighten fasteners to torque given in Table 1 Assemble the
thrust plate and retaining ring into the counterbore in the
hollow shaft Insert the thrust plate fastener through the
thrust plate and thread into the drive shaft end Tighten to
the torque given in Table 2 Install all covers and guards
REMOVAL PROCEDURE —
Remove low-speed shaft input
end cover Remove the thrust plate fastener, retaining ring and
thrust plate from the hollow shaft Refer to Table 3 and select a
backing bolt and flat washer and install them into the drive shaft
as illustrated in Figure 1 The head of the backing bolt provides
a working surface for the removal bolt Reinsert the thrust plate
and retaining ring into the hollow shaft and select a removal bolt
from Table 3 Thread the removal bolt into the thrust plate until it
contacts the backing bolt head Tighten the removal bolt to the
torque indicated in Table 3 (if the thrust plate rotates in the shaft,
align the slot in the plate with the hollow shaft keyway and insert
a screwdriver or piece of key stock to prevent rotation of the
plate) After torquing the bolt, as instructed, strike the bolt sharply
with a hammer and re-torque the bolt if separation of the drive
from the shaft did not occur Repeat this procedure, re-torquing
the bolt after each blow, until separation occurs
HOLLOW
SHAFT
THRUST
PLATE
RETAINING
RING
FLAT WASHER
TAPPED HOLE
IN DRIVE SHAFT
DRIVE SHAFT
RETAINING
RING
BUSHING
BACKING BOLT
REMOVAL
BOLT
TABLE 1 — Seal Housing Fastener Tightening
Torque
(Non-Lubricated Fasteners)
DRIVE
SIZE
Fastener Size
Max Tightening
Torque lb-ft (Nm)
5107
.500-13UNC
69 (94)
5115
.625-11UNC
137 (186)
5203
.750-10UNC
245 (332)
5207
.875- 9UNC
380 (515)
5215
1.000- 8UNC
567 (769)
5307
1.000- 8UNC
792 (1074)
5315
1.000- 8UNC
792 (1074)
Figure 1
TABLE 2 — Thrust Plate Fastener Data
(Non-Lubricated Fasteners)
DRIVE
SIZE
Fastener Grade
& Size
Max Tightening
Torque lb-ft (Nm)
Min Thread Depth
Inches (mm)
5107
.500-13UNC x 3.50, GR.8
92 (125)
2.00 (50.8)
5115
.500-13UNC x 4.00, GR.8
92 (125)
2.00 (50.8)
5203
.625-11UNC x 3.50, GR.8
183 (248)
2.00 (50.8)
5207
.625-11UNC x 3.50, GR.8
183 (248)
2.00 (50.8)
5215
.875- 9UNC x 5.00, GR.8
533 (723)
2.50 (63.5)
5307
1.000- 8UNC x 5.00, GR.5
567 (769)
2.50 (63.5)
5315
1.000- 8UNC x 5.00, GR.8
792 (1074)
2.50 (63.5)
c
Fasteners may be hex socket head or hex head except for size 5307,
which must be a hex head to clear input end cover
