multiplate in-line slip clutches i - sdp/si · both directions, slip when the torque setting is...
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
0 1Inch
FUNCTION:Multiplate slip clutches control torque for intermittent, continuous, or overload slip. It will drive in both directions, slip when the torque setting is reached, and resume driving as the load is reduced. These clutches are excellent as continuous or intermittent drag brakes, protection against overloads, for “soft starts,” slip at the end of a stroke, as friction hinges, for screwing on container caps, etc.
CONSTRUCTION:The clutch consists of two assemblies: a cartridge and a housing (see cutaway above). The cartridge is set-screwed or keyed to the input shaft. The housing is either set-screwed or keyed to the output shaft or, as shown, is attached to the output gear or pulley with a bronze bearing to allow relative motion between the input shaft and the output gear/pulley. Torque is transmitted from the flats on the hub to the mating flats on the inner plates, through the friction pads to the outer plates, through the torque pins to the housing and the output gear/pulley. The torque level is controlled by compressing the springs with the adjusting nut. For a fixed torque clutch, a collar is attached to the hub in a fixed position instead of the adjusting nut. In operation, either the input shaft or the housing can be the input member, with the other member being driven.
CAPACITY:The clutch capacity as noted in the catalog is based on continuous operation at 50 rpm for over 25 million cycles. Torque, rpm, duty cycle and life are interdependent. A reduction of any of these will allow an increase in any other. Running at 25 rpm will allow twice the torque, or running for only 10% of the cycle will allow higher rpm, etc.The limit is based on heat buildup measured in watts: English Unit Watts = Torque (lbf-in.) x rpm x 0.0118 x % Duty CycleMetric Unit Watts = Torque (N • m) x rpm x 0.104 x % Duty Cycle
For typical applications, see examples on page 13-?.
INNER PLATESMATE WITHFLATS ON HUB
TORQUE PINS
INPUTSHAFT
HOUSINGCARTRIDGE
DETENTPLATE
OUTPUTPULLEY
THRUSTPLATE
FRICTION PADS
SPRINGS
HUB
INNER PLATES(DRIVING)
OUTER PLATES(DRIVEN)
TORQUEADJUSTINGNUT
MULTIPLATE IN-LINE SLIP CLUTCHES
13-3D820
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A13-3D805
Metric
0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
IN-LINE SLIP CLUTCHES
MULTIPLATE DESIGN
MATERIAL:Fig. 1 - Housing - Zinc Plated Steel Plates - Brass Friction Materials - Proprietary (Nonasbestos)Fig. 2 - Housing - Aluminum Plates - Brass Friction Materials - Proprietary (Nonasbestos)
FEATURES:Fully adjustable within rating limits Low stick / slip ratioContinuous slip within dissipation limitAvailable with bronze bearing in hub end so thatgear, pulley, etc. can be mounted on hub “D1”Available with other bores as special order
Catalog Number
METRIC COMPONENT
Std.+0.05
0
Max. Bore Spec.
DBody Dia.± 0.5
D1Hub Dia.± 0.05
LLength± 0.05 Fr
ictio
nSu
rfac
esl1Hub
Length Hub End
Cart. End Watts
Bore Depthd Bore
Dis
sip.
*Po
werTorque*
RangeN • cm
@ 50 rpm
26.933.325.4 8 10 19.3 6.3
15.8
S98CA6MMEC250827S98CA6MMEC250833 7.8
19.125.4
0.23 to 22.61.13 to 113
28
Fig. 1
Catalog Number Std.+0.05 0
Max. Bore Spec.
DBody Dia.± 0.5
D1Hub Dia.± 0.05
LLength± 0.05 Fr
ictio
nSu
rfac
esl1Hub
Length Hub End
D2 D3Cart. End Watts
Bore Depthd Bore
Dis
sip.
*Po
werTorque*
RangeN • cm
@ 50 rpmFig. 2
S98CA6MMOC320838S98CA6MMOC381063S98CA6MMOC511273S98CA6MMOC701273
38.163.5 72.9
614.52943
31.838.150.869.9
810 12
1013 16
19.325.735.141.4
6.3 9.4 12.7
25.444.5 47.7
12.719.1 25.4
8 12
12
1.13 to 1135.65 to 2829.04 to 56411.3 to 847
2.383.17 4.78
26.9833.3242.4760.33
HOUSING
ADJUSTABLETORQUE
ADJUSTINGNUT
L
LHOUSING
ADJUSTING NUT
CARTRIDGE
Fig. 1
Fig. 2
Ød
ØD33 PINS @ 120°ON BCD D2
ADJUSTABLETORQUE
ØD
ØD
ØD1
ØD1
l1
l1
2 x l1
CARTRIDGE
Ød
Fig. 1
Fig. 2
* See Technical Applications page.
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
0 1Inch
UNLIMITED APPLICATIONS:*Intermittent motion Torque limiting Indexing Hinging Phase adjustment Many more Feeding
*The ingenuity of engineering has led to applications with labelers, indexing, film transport, instrumentation, business machines, computer peripherals, packaging, mailing, plotters, paper feeds and many more. We supply stock clutches or we work with you to develop units for your specific applications.
TYPICAL MULTIPLATE SLIP CLUTCH APPLICATIONS:
S98CA6(-,M) tech pages–XP2 of 2
05-18-98 GWREV: 5-23-19 JC
D815 PD820 P13-5D810 P13-4D805 P13-4
TIMING BELT ON HOUSINGTiming belt drives housing. Torque transmitted through adjustable pressure plates to shaft. Also operates as shaft input to timing belt.
SHAFT-TO-SHAFT CONTROLEither shaft as input. Fixed torque transmitted through pressure plates. Shafts must be journalized. Also can be adjustable torque.
SLIP CARTRIDGE WITH GEARPressure pads transmit torque directly to gear for space saving package.
CLUTCH WITH A MODIFIED GEARTorque transmitted directly from gear through pins to adjustable pressure plates.
KNOB WITH TORQUE PROTECTIONKnob connected directly to housing. Fixed torque transmitted to shaft.Will slip above preset torque.
BRAKE TO FRAME OF MACHINEOuter pressure plates held to machine frame. Adjustable braking pressure transmitted to shaft.
“SINGLE” REVOLUTION CLUTCHInput shaft turns continuously. Output shaft turns when latch is disengaged. Single revolution, partial revolution, or multi-revolutions can be designed.
CONSTANT TORQUE – SUPPLY OR REWIND SPOOLSlip clutch mounted directly to spool will give constant torque. Mounted directly to constant diameter cylinder will give constant tension. Many variations available to control wire supply system.
YOURSPOOL
LATCH
MULTIPLATE IN-LINE SLIP CLUTCH APPLICATIONS
13-5D820
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
Metric
0 10
13-8
SPRING-WRAPPED SLIP CLUTCHES
FEATURES:Long life under continuous slip conditionsUnidirectional or bidirectional operationSame or different clockwise and counterclockwise torquesPrecise and stable limit torque calibration (range: 0.007 to 4.24 N • m)Same torque at breakaway as at high slip velocitiesMounting provisions for gear, sprocket or pulleyCorrosion-resistant materials
APPLICATIONS:Tension control of film or tape drivesTransmission overload protection
SPECIAL DESIGNS:
The standard line of slip elements provides a wide selection of limit torques, sizes and coupling arrangements. In addi-tion, our engineers will modify designs to meet your specific requirements in such areas as:ConfigurationDriving arrangementLimit torques from a fraction of a N • cm to many N • m’sCalibration of torque to a tolerance of ± 5%Different limit torques for the two directions of rotationSpring windup and limit torque combination. The spring action of the slip element is useful for tensioning of tape and prevention of slack loops.
*Stock units are calibrated with equal clockwise and counterclockwise slip torques corresponding to the tabulated Upper Limit Torques. Other torques are readily available from full, down to 1/8 of the Upper Limit Torque for each model. Torque values are independent of each other for clockwise and counterclockwise rotation, and may be specified the same or different for the two directions.
**All clutches in this series have a pilot diameter “D3” and three tapped holes “T1” for mounting a gear, sprocket or pulley on the input hub. Screw penetration into the clutch housing must not exceed the depth specified in column “T1”. Concentricity of pilot diameter “D3” to bore “d” is 0.025 T.I.R. max.
All slip clutches are designed for long life under continuous slip conditions. The useful life of these elements is a function of the transmitted torque and slip speed.
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
Metric
0 10
13-9
SPRING-WRAPPED SLIP CLUTCHES
Covered by U.S. Patents and Patents Pending
Catalog Number
METRIC COMPONENT
LD S
dBore+0.025 0
TSet
Screwl2l1 l3
D1
Max.Wt.
gD2
Max.
Upper* Limit
Torque N • m
D4 T1
D3 0 -0.025
Fig.No.
11111221111112222111111
26.726.731.531.531.535.335.335.335.342.442.447.847.847.847.847.847.847.847.847.858.458.458.4
161625.425.425.431.7531.7538.138.147.547.547.547.557.15 57.1557.1557.1566.55 66.5566.5576.276.276.2
4.574.575.335.335.335.845.845.845.846.356.357.377.377.377.377.377.378.138.138.13
–––
3 4 4 6 8 6 8 6 8 6 81012 6 81012 810 12161920
2.032.032.412.412.413.33.33.33.33.33.33.33.33.33.33.33.33.33.33.35.725.725.72
18.2918.2921.5921.5921.5923.8823.8823.8823.8830.4830.4834.0434.0434.0434.0434.0434.0433.2733.2733.2750.1750.1750.17
S9940YMSWC16X03S9940YMSWC16X04S9940YMSWC25X04S9940YMSWC25X06S9940YMSWC25X08S9940YMSWC32X06S9940YMSWC32X08S9940YMSWC38X06S9940YMSWC38X08S9940YMSWC48X06S9940YMSWC48X08S9940YMSWC48X10S9940YMSWC48X12S9940YMSWC57X06S9940YMSWC57X08S9940YMSWC57X10S9940YMSWC57X12S9940YMSWC67X08S9940YMSWC67X10S9940YMSWC67X12S9940YMSWC76X16S9940YMSWC76X19S9940YMSWC76X20
0.760.761.021.021.021.021.021.021.021.021.021.021.021.021.021.021.021.021.021.021.171.171.17
M1.6M1.6M3M3M3M4M4M4M4M4M4M4M4M4M4M4M4M5M5M5M62@
120°
131322.422.422.425.725.725.7323238.438.438.438.451.151.151.151.151.151.176.576.576.5
9.5 9.512.67512.67512.67512.67512.67512.67512.67512.67512.67512.67519.02519.02519.02519.02519.02519.02519.02519.02528.5528.5528.55
11.43 11.43 17.27 17.27 17.27 17.27 17.27 17.27 17.27 17.27 17.27 17.27 17.2718.818.818.818.818.818.818.8
27.94 27.94 27.94
12.712.7
16.51 16.51 16.5123.523.523.523.519.219.2
29.72 29.72 29.72 29.72 29.72 29.72 29.72 29.72 29.7237.637.637.6
0.064± 0.007
0.141± 0.014 0.339± 0.035 0.565± 0.057 0.847± 0.085 1.059± 0.106
1.695± 0.170
2.540± 0.250
3.390± 0.340
M2X3M2X3M2X3M2X3M2X3M2X3M2X3M3X4M3X4M3X4M3X4M3X4M3X4M3X4M3X4M3X4M3X4M4X5M4X5M4X5M2X3M2X3M2X3
26 26 68 68 68117117213213355355482482582582582582794794794993993993
OUTPUT OUTPUT
LL
T T
ØDØD
ØD1 ØD1
ØD3 ØD2 ØD3 ØD2
ØD4 ØD4
T1T1
Ød Ød
SS
l3 l3
l2
l2l1
l1
CUSTOMER'S**INPUT
Fig. 2Fig. 1
CUSTOMER'S**INPUT
* or ** See Preceding Page
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