Staffa Dual Displacement
Hydraulic Motor
HMC
080
Kawasaki Motors Corp., U.S.A.
Precision Machinery Division
2
CONTENTS
Page
1. General Description ................................ 2
2. Functional Symbols
................................ 2
3. Model Code
................................................. 3
4. Performance Data:
Motor selection
......................................... 3
Rating definitions ..................................... 4
Output torques .......................................... 5
Bearing life .................................................. 6
Volumetric efficiency
............................. 6
5. Circuit and Application Notes:
Displacement selection
........................ 7
Starting torques ........................................ 7
Low speed operation ............................
7
Small displacements
............................. 7
High back pressure ................................ 7
Boost pressure ..........................................
7
Cooling flow
................................................ 8
Motor casing pressure ......................... 8
6. Hydraulic Fluids
........................................ 8
7. Temperature Limits
................................ 8
8. Filtration
........................................................ 8
9. Noise Levels
............................................... 8
10. Polar Moment of Inertia
....................... 8
11. Mass
................................................................ 8
12. Installation Data:
General
........................................................... 8
Motor axis horizontal ............................. 8
Motor axis upwards ............................... 8
Motor axis downwards ........................ 8
Start-up ......................................................... 8
13. Installation Dimensions
..........
8 to 11
1. GENERAL DESCRIPTION
Kawasaki “Staffa” high torque, low
speed radial piston motors use
hydrostatic balancing techniques to
achieve high efficiency, combined with
good break-out torque and smooth
running capability.
The HMC series dual displacement
models have two pre-set displacements
which can be chosen from a wide
range to suit specific application
requirements. The displacements are
hydraulically selected by a directional
control valve which can be remote
from, or mounted directly on, the motor.
Displacements can be changed when
the motor is running.
The range of HMC motors extends from
the HMC010 of 202 cm
3
(12.3 in
3
) to
the HMC325 of 5330 cm
3
(325 in
3
)
displacement.
These motors are also available in a
continuously variable version using
either hydro-mechanical or electro-
hydraulic control methods.
Other mounting options are available on
request to match many of the
competitor interfaces.
The HMC080 is one of 8 frame sizes
and is capable of developing torques up
to 6050 Nm (4460 lbf ft) with a
continuous output power of 112 kW
(150 hp).
The Kawasaki range also includes fixed
displacement motors, plus matching
brakes and gearboxes to extend the
torque range.
2. FUNCTIONAL SYMBOLS
All model types with variants in model code positions & .
76
-SO3-X- -F(M)-X-
DR
Max.
Min.
2
1
X
Y
DR
P1
P2
P1
P2
Max.
Max.
Min.
Min.
2
DR
2
1
1
X
PC
PC
APBT
P1
P2
Max.
Min.
DR
2
1
PC
PC
APBT
P1 (P2)
P2 (P1)
Max.
Min.
DR
2(1)
1(2)
PC
PC
APBT
External pilot
supply
Max.
Min.
DR
2
1
PC
PC
APBT
External pilot
supply
Y
-F(M)-C-
-F(M)-C1- (-F-(M)-C2- in brackets)
-SO3-C-
-F(M)3-CS-
3
3. MODEL CODE
Features shown in brackets ( ) may be left blank according to requirements.
All other features must be specified.
(F**)-HM(*)C080-**-**-**-**-**-(T*)-30-(PL**)
FLUID TYPE
Blank = Petroleum oil
F3 = Phosphate ester (HF-D
fluid)
F11 = Water-based fluids (HF-A,
HF-B)
MODEL TYPE
Blank = Standard (“HMC”)
M = To NCB (UK) specification
463/1981 (“HMMC”)
SHAFT TYPE
P* = Cylindrical shaft with
parallel key ▲
S* = Cylindrical, 14 splines to
BS 3550
Q* = Female, 24 splines to BS
3550
Z* = Cylindrical shaft to DIN
5480 (W70 x 3 x 7h)
* For installations where shaft is vertically
upwards specify “V” after shaft type letter
to ensure that additional high level drain
port is provided.
▲ Max. torque 5400 Nm (3920 lbf ft)
HIGH DISPLACEMENT CODE
90 to 45 in
3
, in 5 in
3
steps
LOW DISPLACEMENT CODE
5 to 70 in
3
, in 5 in
3
steps
MAIN PORT CONNECTIONS
SO3 = 6-bolt (UNF) flange: 3"
valve (Staffa original valve
housing)
F3 = SAE 1
1
/4" 4-bolt (UNC)
flanges: 3" valve.
FM3 = SAE 1
1
/4" 4-bolt (metric)
flanges: 3" valve.
DISPLACEMENT CONTROL PORTS
(AND SHUTTLE VALVE)
Threaded ports/bi-directional shaft
rotation:
X = X and Y ports G
1
/4" (BSPF
to ISO 228/1)
ISO 4401 size 03 mounting face/bi-
directional shaft rotation:
C = No shuttle valve
CS■ = With shuttle valve
7
6
5
4
3
2
1
ISO 4401 size 03 mounting
face/uni-directional shaft rotation
(viewed on shaft end):
C1 = Control pressure from main
port 1 (shaft rotation
clockwise with flow into
port 1)
C2 = Control pressure from main
port 2 (shaft rotation
counter-clockwise with
flow into port 2)
■ Not available with “SO3” type main port
connections
TACHO/ENCODER DRIVE
T = Staffa original tacho drive
T1 = Suitable for Hohner 3000
series encoders. (Encoder
to be ordered separately)
Omit if not required.
DESIGN NUMBER, 30 SERIES
Subject to change. Installation and
performance details remain
unaltered for design numbers 30 to
39 inclusive.
SPECIAL FEATURES
PL** = non-catalogued features,
e.g.:
High pressure shaft seals
Stainless steel shaft sleeves
Alternative encoder and tacho drives
HFC fluids
Motor valve housing orientation
Shaft variants
Special paint
** Number assigned as required to specific
customer build.
10
9
8
6
1 2 3 4 5 6 7 8 9 10
4
4. PERFORMANCE DATA
Performance data is valid for Staffa
HMC080 motors fully run in and
operating with petroleum oil. Leakage
values are at fluid viscosity of 50 cSt
(232 SUS).
MOTOR SELECTION
Use table 1 to select appropriate
displacements for each application.
Refer to table 2 for pressure and speed
limits when using fire-resistant fluids.
RATING DEFINITIONS
●
CONTINUOUS RATING
For continuous duty the motor must be
operating within each of the maximum
values for speed, pressure and power
as specified for each displacement
code.
●
INTERMITTENT RATING
Operation within the intermittent power
rating (up to the maximum continuous
speed) is permitted on a 15% duty
basis, for periods up to 5 minutes
maximum.
●
INTERMITTENT MAX. PRESSURE
Up to 275 bar (4000 psi) is allowable on
the following basis:
(a) Up to 50 r/min: 15% duty for
periods up to 5 minutes maximum.
(b) Over 50 r/min: 2% duty for periods
up to 30 seconds maximum.
TABLE 1
Displacement code*
(Model code positions
and ) 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 05
Displacement cm
3
1475 1393 1310 1230 1147 1065 983 900 820 737 655 574 492 410 328 246 164 82
volume in
3
90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 05
Average actual Nm/bar 22,02 20,80 19,66 18,48 17,11 15,90 14,55 13,20 12,00 10,60 9,24 7,87 6,48 5,31 3,93 2,56 1,57 0
running torque lbf ft/psi 1.12 1.06 1.00 0.94 0.87 0.81 0.74 0.67 0.61 0.54 0.47 0.40 0.33 0.27 0.20 0.13 0.08 0
Max. continuous
speed r/min 300 315 335 360 385 415 450 490 540 600 600 600 600 600 600 600 600 1000
Max. continuous kW 112 109 105 103 100 96 93 89 85 80 75 64 52 42 31 21 10 0
output hp 150 146 141 138 134 129 125 120 114 108 100 86 70 56 42 28 14 0
Max. intermittent kW 138 133 128 125 121 118 114 110 103 98 91 78 64 51 38 25 13 0
output hp 185 178 172 168 163 158 153 147 139 132 122 105 86 68 51 34 17 0
Max. continuous bar 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 250 17
◆
pressure psi 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 3626 250◆
Max. intermittent bar 275 275 275 275 275 275 275 275 275 275 275 275 275 275 275 275 275 17◆
pressure psi 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 4000 250◆
54
* Intermediate displacements are available to special order.
◆ See “Small displacements” page 5 for information about higher pressure applications.
TABLE 2
Fluid type Pressure, bar (psi) Max. speed r/min
Continuous Intermittent
HFA, 5/95% oil-in-water 50% of limits
emulsion
103 (1500) 138 (2000)
for petroleum oil
HFB, 60/40% water-in-oil
emulsion
138 (2000) 172 (2500) As for petroleum oil
HFC, 50% of limits
water glycol
103 (1500) 138 (2000)
for petroleum oil
HFD, phosphate ester 250 (3626) 275 (4000) As for petroleum oil
5
OUTPUT TORQUES
The torque curves indicate, for each
displacement, the maximum output
torque of the motor with an inlet
pressure of 250 bar (3626 psi) and
zero output pressure. High return
line pressures will reduce the torque
for any given pressure differential.
The solid line portion of each curve
indicates the levels of maximum
torque and speed that are permitted
on a “continuous” basis.
The dotted portion of each curve
indicates the levels of torque and
speed at which the motor can
operate at an “intermittent” rating.
The starting torques shown on the
graph are average and will vary with
crank angle.
0
500
1000
1500
0 100 200 300 400 500 600
Shaft speed, r/min
1000
2000
3000
4000
5000
6000
2000
2500
3000
3500
4000
4500
Torque
lbf ft Nm
90
85
80
75
70
65
60
55
50
45
40
35
30
25
112kW
105kW
90 kW
75kW
60kW
45kW
30kW
15kW
6
The nomograph allows the median
▲
bearing life to be determined for
conditions of:
1. No side load and no axial thrust
2. Side load and no axial thrust
▲ To determine L10 life predictions per ISO 281-
1-1977 multiply the median figure by 0,2.
For more precise life prediction, or
where axial thrusts are incurred, a
computer analysis can be provided by
Kawasaki on receipt of machine duty
cycle.
●
SHAFT STRESS LIMIT
The shaft stress limit in the nomograph
is based on the fatigue rating of shaft
types “S” and “P”; for shaft type “Z”
the shaft stress limit is approx. 20%
higher. Infrequent loading above these
limits may be permitted; consult
Kawasaki.
VOLUMETRIC EFFICIENCY
This nomograph enables the average
volumetric efficiency, crankcase (drain)
leakage and “winch slip”/shaft creep
speed to be estimated.
Example (follow chain dotted line):
Given:
1. Pressure
....................175 bar (2500 psi)
2. Displacement code.....................70 (in
3
/r)
3. Speed ..............................................300 r/min
To obtain:
4. Volumetric efficiency
.....................96.1%
5. Crankcase leakage .......................7 l/min
(430 in
3
/min)
6. Shaft creep speed ....................6,5 r/min
The shaft creep occurs when the load
attempts to rotate the motor against
closed ports as may occur, for example,
in winch applications.
BEARING LIFE
(h)
(i)
(c)
L
median 50 000
100 000
40 30 20 000 10 000 5000 4 3 2500
lb kN
10
2000
4000
6000
8000
10 000
12 000
20
30
40
50
60
N = 600
(b)
(g)
(a)
(e)
(f)
W
A = 50 m
m
(2")
A = 100 mm (4")
Shaft stress limit
A = 200 mm (8")
A = 150 mm (6")
P = 250 bar (3600 psi)
P = 138 bar (2000 psi)
P = 70 bar (1000 psi)
N = 25
N = 100
N = 50
N = 200
N = 300
N = 450
(d)
P = 207 bar (3000 psi)
W = Side load
A = Distance from mounting
face to load centre
P = Max. pressure on port 1
or port 2
N = Shaft speed, r/min
W
A
HMC080
Example 1 (follow chain dotted line):
Side load (W) a) 0
System pressure (P) b) 207 bar (3000 psi)
Speed (N) c) 300 r/min
Median bearing life d) 23 000 hrs
L10 bearing rating = median x 0.2 4600 hrs
Example 2 (follow chain dotted line):
Side load (W) e) 40 kN (9000 lbf)
Load offset (A) from motor mounting face f) 50 mm (2.0 in)
System pressure (P) g) 207 bar (3000 psi)
Speed (N) h) 25 r/min
Median bearing life i) 39 000 hrs
L10 bearing rating = median x 0.2 7800 hrs
7
VOLUMETRIC EFFICIENCY
5. CIRCUIT AND
APPLICATION NOTES
DISPLACEMENT SELECTION
To select either displacement, a
pressure at least equal to 2/3 of the
motor inlet/outlet pressure (whichever is
higher) is required. In most applications
the motor inlet pressure will be used.
For inlet/outlet pressures below 3,5 bar
(50 psi) a minimum control pressure of
3,5 bar (50 psi) is required. In the event
of loss of control pressure the motor
will shift to its highest displacement.
For rapid reversing applications it is
recommended to externally source the
control oil supply direct from the system
pump (use displacement control type
“X” or “C” - not “CS”, “C1” or “C2” -
in model code position ).
STARTING TORQUES
The starting torques shown on the
graph on page 3 are average and will
vary with system parameters. For
motors with low displacement below
25 in
3
and starting under load it is
recommended to select high
displacement for start-up.
7
LOW SPEED OPERATION
(High displacement mode)
Minimum operating speeds are
determined by load conditions (load
inertia, drive elasticity, etc.) For
operation at speeds below 3 r/min
consult Kawasaki.
SMALL DISPLACEMENTS
(5 in
3
and below)
The pressures given in the table on
page 2 for displacement code “05” (and
below) are based on 1000 r/min output
shaft speed. These pressures can be
increased for shaft speeds less than
1000 r/min; consult Kawasaki for
details.
In addition to 5 in
3
, a zero swept
volume displacement (for free wheeling
requirements) is available on request,
subject to Kawasaki approving the
application.
HIGH BACK PRESSURE
When both inlet and outlet ports are
pressurized continuously, the lower
pressure in one port must not exceed
70 bar (1000 psi). Consult Kawasaki on
applications beyond this limit. Note that
high back pressures reduce the
effective torque output of the motor.
BOOST PRESSURE
When operating as a motor the outlet
pressure should equal or exceed the
crankcase pressure. If pumping occurs
(i.e. overrunning loads) then a positive
pressure, “P”, is required at the motor
ports. Calculate “P” from:
P (bar) = 1 + N
2
x V
2
+ C bar
1,6 x 10
10
P (psi) = P (bar) x 14.5
Where:
N = speed, r/min
C = crankcase pressure, bar
V = displacement, cm
3
/r
The flow rate of oil needed for the
make-up system can be estimated from
the crankcase leakage figure (see
Volumetric Efficiency graph above) plus
an allowance for changing
displacement; e.g. to change high to
low in 0,25 sec requires 32 l/min (8.4
USgpm).
Allowance should be made for other
system losses and also for “fair wear
and tear” during the life of the motor,
pump and other system components.
25
10
20
18
16
14
12
10
8
6
4
2
Shaft creep speed (winch slip) (r/min)
25
30
35
40
50
60
70
80
90
0 125 250 375
0246
Crankcase leakage
0
0
1000 2000
100
Pressure
500 600
810
3000
200 250 bar
psi
in
3
/min
l/min
60 70 80 90 100
Volumetric efficiency (%)
Displacement code (in
3
/r) 50 100 200 300 600
Shaft speed (r/min)
8
COOLING FLOW
Operation within the continuous ratings
does not require any additional cooling.
For operating conditions above
“continuous”, up to the “intermittent”
ratings, additional cooling oil may be
required. This can be introduced
through the spare crankcase drain
holes, or in special cases through the
valve spool end cap. Consult Kawasaki
about such applications.
MOTOR CASING PRESSURE
With the standard shaft seal fitted,
the motor casing pressure should
not exceed 3,5 bar (50 psi). On
installations with long drain lines
a relief valve is recommended to
prevent over-pressurizing the seal.
Notes:
1. The casing pressure at all times must not
exceed either the motor inlet or outlet pressure.
2. High pressure shaft seals are available to
special order for casing pressures of:
Continuous: 10 bar (150 psi)
Intermittent: 15 bar (225 psi)
3. Check installation dimensions (page 7) for
maximum crankcase drain fitting depth.
6. HYDRAULIC FLUIDS
Dependent on motor (see Model Code
position ) suitable fluids include:
- Antiwear hydraulic oils.
- Phosphate esters (HFD fluids)
- Water glycols (HFC fluids)■
- 60/40% water-in-oil emulsions
(HFB fluids)■
- 5/95% oil-in-water emulsions
(HFA fluids)■
■
Reduced pressure and speed limits, see page 3.
Viscosity limits when using any fluid
except oil-in-water (5/95) emulsions are:
Max. off load .......... 2000 cSt (9270 SUS)
Max. on load
................ 150 cSt (695 SUS)
Optimum
............................ 50 cSt (232 SUS)
Minimum ........................... 25 cSt (119 SUS)
PETROLEUM OIL RECOMMENDATIONS
The fluid should be a good hydraulic
grade, non-detergent petroleum oil. It
should contain anti-oxidant, anti-foam
and demulsifying additives. It must
contain antiwear or EP additives.
Automatic transmission fluids and motor
oils are not recommended.
7. TEMPERATURE LIMITS
Ambient min. ...........................-30°C (-22°F)
Ambient max. ........................+70°C (158°F)
Max. operating temperature range
Petroleum Water-
oil containing
Min. -20°C (-4°F) +10°C (50°F)
Max.* +80°C (175°F) +54°C (130°F)
1
* To obtain optimum service life from both fluid
and hydraulic system components, 65°C
(150°F) normally is the maximum temperature
except for water-containing fluids.
8. FILTRATION
Full flow filtration (open circuit), or full
boost flow filtration (closed circuit) to
ensure system cleanliness to ISO
4406/1986 code 18/14 or cleaner.
9. NOISE LEVELS
The airborne noise level is less than
66.7 dB(A) DIN (70 dB(A) NFPA)
throughout the “continuous” operating
envelope.
Where noise is a critical factor,
installation resonances can be reduced
by isolating the motor by elastomeric
means from the structure and the
return line installation. Potential return
line resonances originating from liquid
borne noise can be further attenuated
by providing a return line back pressure
of 2 to 5 bar (30 to 70 psi).
10. POLAR MOMENT OF
INERTIA
Typical data
Displacement kg m
2
lb in
2
code
90 0,052 180
45 0,044 150
11. MASS
Approx. all models: 172 kg (380 lb)
12. INSTALLATION DATA
GENERAL
●
Spigot
The motor should be located by the
mounting spigot on a flat, robust
surface using correctly sized bolts. The
diametral clearance between the motor
spigot and the mounting must not
exceed 0,15 mm (0.006"). If the
application incurs shock loading,
frequent reversing or high speed
running, then high tensile bolts should
be used, including one fitted bolt.
●
Bolt torque
The recommended torque wrench
setting for the M20 bolts is:
407±14 Nm (300±10 lbf ft)
●
Shaft coupling
Where the motor is solidly coupled to a
shaft having independent bearings the
shafts must be aligned to within 0,13
mm (0.005") TIR.
CRANKCASE DRAIN
The crankcase drain must be taken
from a position above the horizontal
centre line of the motor.
Axis vertical, shaft up
Additional drain
port G
1
/4" (BSPF)
0,35 bar (5 psi)
Standard drain port
3
/4" - 16 UNF
An additional G
1
/4" (BSPF) drain
port in the front mounting flange is
provided when the “V” (shaft
vertically upwards) designator is
given after the shaft type letter in
position of the model code. This
additional drain should be
connected into the main motor
casing drain line downstream of a
0,35 bar (5 psi) check valve to
ensure lubrication of the upper
bearing. See above diagram.
3
Axis vertical, shaft down
Use any drain position. The drain
line should be run above the level
of the uppermost bearing; if there is
risk of syphoning then a syphon
breaker should be fitted.
Motor axis horizontal
9
13. INSTALLATION DIMENSIONS IN MM (INCHES)
■ Port connection details (model code position )
Symbol Flange Bolt
nominal size tappings
F3 1
1
/4" SAE 4-bolt flange
7
/16"-14 UNC-2B x 1.06" deep
FM3 1
1
/4" SAE 4-bolt flange M12-6H x 1,75 x 27,0 (1.06) deep
SO3 Staffa 3" 6-bolt, see separate
view below.
6
●
Suitable for M20 or
3
/
4
" bolts. Maximum reaming diameter 21,0
(0.83) (for fitted bolt); see “Installation Data”.
3rd angle
projection
START-UP
Fill the crankcase with system fluid.
Where practical, a short period (30
minutes) of “running in” should be
carried out with the motor set to its
high displacement (pressure to port Y,
or to port B of the size 03 pilot valve).
87,0 (3.43)
Ø 535,0 (21.1 dia)
159,0
(6.3)
5 holes Ø 20,0 (0.79 dia)
equi-spaced as shown
on 327,03 (12,875) pcd
and spotfaced to
Ø 38,0 (1.5 dia). ●
See “Displacement control
connections” below
3 drain ports (two normally
plugged)
3
/
4"-16 UNF-2B with
Ø 38,0 (1.5 dia) spotface.
Warning: Pipe fittings must
not enter ports by more than
12,0 (0.5) from face
Flow directions for
shaft rotation shown.
Reverse directions for
opposite rotation.
Port 2 ■
37,0
(1.46)
37,0
(1.46)
58,7 (2.31)
58,7 (2.31)
Port 1 ■
30,2 (1.19)
46,5 (1.83)
303,8 (11.96)
Mounting face
59,0 (2.34)
21,0 (0.82)
Spigot
Ø 301,57/
301,50
(11.873/
11.870 dia)
Ø 365,0
(14.4) max
Housing profile for
type Q shaft,
see next page
28,6
(1.125)
See “Shaft
types” on
next page
394,0
(15.5)
174,0 (6.8)
100,0
(3.94)
30,2 (1.19)
Pressure gauge connection into each main
port; supplied plugged.
0.5625"-18 UNF-2B thread for main ports
code “F3”.
G
1
/
4
" for main ports code “FM3”.
(Note: Not on type SO3 flange, see below)
HMC080 MOTOR WITH TYPE “F3”/”FM3” MAIN PORTS CONNECTION
See additional views for displacement control connections, all shaft types and alternative
main port connections.
Ø 254,0
(10 dia)
10
VALVE HOUSING WITH 3" 6-BOLT FLANGE, “SO3”
IN MODEL CODE POSITION
6
DISPLACEMENT CONTROL CONNECTIONS,
MODEL CODE POSITION
7
◆ Displacement selector valve is not supplied with the motor; specify and order
separately.
Type X
G
1
/4" (BSPF) tapped ports X and Y
Displacement selection (via remotely
located valve ◆):
High displacement: P to Y; X to T
Low displacement: P to X; Y to T
Types C, CS, C1 and C2
Mounting interface for directional
control valve ◆ to: ISO 4401 size 03
ANSI/B93. 7M size D03
Displacement selection:
High displacement: P to B; A to T
Low displacement: P to A; B to T
27,2 (1.07)
17,0 (0.67) 11,7 (0.46)
174,0 (6.8)
to motor
mounting face
4 holes
M5 x 12,0
(0.5) deep
Ø 4,0 (0.15 dia)
x 6,0 (0.23)
deep hole for
orientation pin
2 ports G
1
/4" (BSPF)
x 15,0 (0.59)
full thread depth
2 connections to P
port, G
1
/
4
" x 15,0
(0.59) full thread
depth, supplied
plugged.
11,0
(0.43)
13,0
(0.51)
174,0 (6.8)
to motor
mounting face
Ø 254,0 (10)
Mounting face
Flow direction for shaft
rotation shown on main
drawings on page 9.
Reverse flow for opposite
direction of shaft rotation.
394,0 (15.5)
r. 19.0 (0.75)
Port 1
▲
▲
Ø 28 (1.125 dia) with recess for 31,0 (1.22) i/d x Ø 4 (0.157 dia)
section O-ring
Port 2
▲
60,0 (2.375)
70,0 (2.75)
44,0 (1.75)
6 holes
0.375"-24 UNF-2B,
16,0 (0.62) deep
10,0 (0.375)
129,0 (5.06)
51,0 51,0
(2.0) (2.0)
321,0 (12.62)
84,0 (3.32)
A
B
T
P
X
Y
63,0
(2.5)
11
SHAFT TYPE “P”, MODEL CODE POSITION
Straight shaft with rectangular key
Warning: Maximum allowable torque for this shaft is 5400
Nm (3920 lbf ft)
3
SHAFT TYPE “S”, MODEL CODE POSITION
Cylindrical shaft with 14 splines to BS 3550
SHAFT TYPE “Z”, MODEL CODE POSITION
Cylindrical shaft to DIN 5480
3
3
SHAFT TYPE “Q”, MODEL CODE POSITION
Female straight shaft with 24 splines to BS 3550
Note: The type “Q” shaft will transmit the maximum
torques given on page 3. However, customers should
ensure that their own mating shaft will transmit the torque
required in their application.
3
Key (supplied):
18,037/18,019 (0.7101/0.7094) wide
x 11,99/11,94 (0.472/0.470) deep
18,001/18,030
(0.7087/0.7098)
71,04/69,44
(2.797/2.734)
60,0 (2.4)
21,0 (0.8)
8,0
(0.3)
Motor mounting face
Spigot
Ø 301,57/
301,50
(11.873/
11.870 dia)
Ø 203,2 (8.0 dia) nominal ■
79,2/78,4
(3.115/3.085)
Ø 54,2
(2.134 dia)
17,3
(0.68)
Ø 74,7
(2.94 dia)
9,8 (0.39)
Spline data
69,6
(2.74)
72,0
(2.83)
135,4/133,6 (5.33/5.26)
to motor mounting face
1
/
2"-20 UNF-2B x 32
(1.25) deep
54,04/53,94
(2.128/2.124)
Ø 60,013/ 59,992
(2.3627/2.3619 da)
For type S shaft
To BS 3550/SAE J498c (ANSI B92.1-1970, class 5)
Flat root, side fit, class 1
Pressure angle 30°
Number of teeth 14
Pitch 6/12
Major diameter 62,553/62,425 (2.4627/2.4577)
Form diameter 55,052 (2.1674)
Minor diameter 54,085/53,525 (2.1293/2.1073)
Pin diameter 8,128 (0.3200)
Diameter over pins 71,593/71,544 (2.8186/2.8167)
For type Z shaft
DIN 5480, W70 x 3 x 22 x 7h
To BS 3550
Flat root, side fit, modified
Pressure angle 30°
Number of teeth 24
Pitch 12/24
Major diameter 53,246/52,916 (2.0963/2.0833)
Minor diameter 48,811/48,684 (1.9217/1.9167)
Pin diameter 3,658 (0.1440)
Pin flatted to 3,560 (0.1400)
Diameter over pins 45,626/45,550 (1.7963/1.7933)
■ Use mounting face spigot for motor location
135,4/133,6 (5.33/5.26)
to motor mounting face
Spline data
54,0 (2.125)
77,0 (3.03)
1
/2"-20 UNF-2B x 32
(1.25) deep
Presented by:
P-969-0012B B/GB301 The right to modification for technical improvement is reserved. SG1M 10/99
Staffa hydraulic motors are
manufactured to the highest
quality standards in a Kawasaki
ISO 9001 certified facility.
Certification No. 891150
