Appendix J • Falk Quadrive Shaft Mounted Drives Model A
(Page 44 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 Recommendations Using TA Taper Bushing
INTRODUCTION —
These instructions are for use when a
flange-mounted 5107-5315JF drive is to be used and the
manufacture of a tapered drive shaft is not feasible For
JF tapered drive shaft recommendations, see Appendix
H Use this appendix to retrofit existing applications or for
outfitting new installations Parts required are the Basic
drive, TA Taper bushing and a thrust plate kit
This appendix will allow the use of a straight drive shaft
with the tapered bushing (without spanner nut) on flange-
mounted applications Provided are dimensions (Table
4) for shaft recommendations and instructions for the
installation and removal of the assembly All bushing bore
sizes, which are available in the standard Quadrive, are
possible with this setup
Drives are provided with tapped holes in the output face of
the housing along with a female register to allow mounting
to the driven equipment JF drives are mounted to the
equipment without the use of an adapter flange Optional
adapter flanges are available, consult the Factory
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 driven 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
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 driven shaft, to provide the shoulder, but stress
concentrations 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 drive shaft
manufactured per the recommendations shown, and the
bushing selected for the proper shaft diameter, remove
and discard the retaining ring and spanner nut from the
bushing assembly
Slide the bushing (flange 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 Bring the
drive into position, line-up the hollow shaft keyway with the
key, and slide the bushing and drive shaft into the hollow
shaft bore
Attach the drive to the mounting surface with fasteners (not
provided) Refer to Table 1 for fastener size and tightening
torque 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 screw driver 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 — JF Drive – Foundation Fastener
& Tightening Torque
(Non-Lubricated Fasteners)
DRIVE
SIZE
Fastener Size
& Grade
Max Tightening
Torque
lb-ft (Nm)
Min. Fastener
Engagement Into
Drive Housing
Inch (mm)
5107
.500-13UNC, GR. 5
69 (94)
.76 (19.3)
5115
.625-11UNC, GR. 5
137 (186)
.94 (23.9)
5203
.750-10UNC, GR. 5
245 (332)
.76 (19.3)
5207
.875- 9UNC, GR. 5
380 (515)
.88 (22.4)
5215
1.000- 8UNC, GR. 5
567 (769)
1.00 (25.4)
5307
1.000- 8UNC, GR. 8
792 (1074)
1.24 (31.5)
5315
1.000- 8UNC, GR. 8
792 (1074)
1.24 (31.5)
Figure 1
