CAM CLUTCH

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A-1-3. High-Speed Overrunning and Low-Speed Engagement (Overrunning speed = 700 r/min and up) (Engaging speed = up to 200 r/min) Fan Drive Systems Applicable Series Series Advantage Note Page Cam Clutch Box OB-ON OB-PN TB BR, BREU MZ, MZEU • Can withstand extended continuous running. • Easy installation and space saving are possible with the TB and TEW types that are combined with speed reducers. • Minimal lubrication maintenance required. • The cam is the inner race overrunning type that lifts off. • Grease is sealed in, so lubrication maintenance is not required. Please specify on the approval drawing that TSUBAKI issues when you place an order. — — 73 to 76 56 to 68 22 to 31 MR • The cam is the outer race overrunning type that lifts off. — 70 Smoke ventilation and gas mixing fans operate in high temperature environments. In order to prevent excessive thermal transfer from distorting the fan shaft, an auxiliary drive system is used to keep the fans rotating slowly when the main motor shuts down. Using a Cam Clutch at the auxiliary motor eliminates the need for manual clutch operation. Thermal expansion in the fan shaft must be absorbed through an expandable coupling. During main motor operation, the Cam Clutch rotates as a normal bearing, so service life is greatly extended. Turbine Auxiliary Drive Systems This example shows a Cam Clutch installed in the auxiliary drive system of a steam turbine. The auxiliary drive system powers the turbine at low speed through the engaged Cam Clutch, until steam pressure accelerates the turbine to the Cam Clutch release speed. Then the cam automatically disengages and runs as a high speed ball bearing, because there is no mechanical contact in the clutch. 11
A-1-3. Medium and Low-Speed Overrunning and Medium and Low-Speed Engagement (Overrunning speed = Up to 700 r/min) (Engaging speed = Up to 700 r/min) In this application, one driven unit is driven at twospeeds by two medium and low-speed drive units, both at speeds lower than 700 r/min. Two Cam Clutches enable automatic switching between the drive units. Example of pasting roll drive The above figure shows an example of Cam Clutches being used with the pasting rolls of a corrugating machine for making cardboard. The pasting rolls are driven continuously by the main motor. During this time, Cam Clutch A engages and Cam Clutch B overruns. When the main motor must be stopped temporarily to fix a problem, it is necessary to keep rotating the pasting rolls in order to prevent paste on the roll surface from drying. To do this, the rolls are driven by an auxiliary motor at a low speed sufficient to prevent the paste from drying (Cam Clutch A overruns, while B engages). This system is also used with meat choppers and screw feeds in food processing machinery. Applicable Series Series Advantage Page MZ, MZEU MG BB PB 200 • Grease is sealed in, so lubrication maintenance is not required. • Compact and transmits high torque. • Excellent wear resistance when overrunning. • Same dimensions as the #62 type bearing. • Integrated Cam Clutch and bearing. • Sleeve-type outer race enables mounting of sprocket or gear with small outer diameter. • Use of oil-impregnanted alloy bearings makes oiling to the bearing section unnecessary. • Since this series is mounted directly on the shaft, it is possible to use a shaft of large diameter. • Compact designs are possible. 22 to 31 69 33, 34 • Grease is sealed in, so lubrication maintenance LD is not required. 38 • For light loads and low-speed drive. TSS • Outside dimensions ara the same as #62 type bering. 35 • Compact designs are possible. TFS • Outside dimensions ara the same as #63 type bering. 36 37 32 A-2. NORMAL ENGAGEMENT REVERSE OVERRUNNING In this application, the normal rotating input power is held for a certain time and, after driving the driven side through the engagement of the Cam Clutch, the Cam Clutch is put into the overrunning state by reversing the input power. This application is classified into the following three kinds, depending upon the purpose for overrunning the Cam Clutch: 1. To simply break the linkage between the input side and the driven unit (for details, see A-2-1 below). 2. To make the driven unit rotate in reverse by drive from another source after making the input side rotate in reverse, and brake the load by engagement of the clutch when the speed of rotation of the driven unit has reached that of the input side (for details, see A-2-2 below). 3. To selectively drive either one of the driven units A or B connected respectively to the outer races of the different aligned Cam Clutches A and B, which are connected to the same drive shaft. When Cam Clutch A engages due to normal rotation of the shaft, Cam Clutch B overruns, and when Cam Clutch B engages due to reverse rotation of the shaft, Cam Clutch A overruns (for details, see A-2-3 below). A-2-1. Application requires breaking connection only (see the figure below) This example shows the use of a Cam Clutch with an inclined pump. If the motor is wired in reverse by mistake at installation, it will rotate the pump in reverse. By mounting a Cam Clutch between the motor and the pump, reverse rotation of the pump (which must not be allowed) is prevented because the Cam Clutch will overrun if the motor rotates in reverse. The Cam Clutch stays engaged at all times when the rotation is normal. Inclined pump 12
Page 1 and 2: CAM CLUTCH
Page 3 and 4: MX Series Page 40 MI-S Series Page
Page 5 and 6: ■ STANDARD SPRAG TYPE CAM CLUTCH
Page 7 and 8: ■ MODES OF OPERATION TSUBAKI Cam
Page 9 and 10: USE IN VARIOUS APPLICATIONS To sele
Page 11: Example of energy saving pump (powe
Page 15 and 16: A-3. FREE WHEELING To prevent diffe
Page 17 and 18: B-2. MEDIUM AND LOW SPEED AND SMALL
Page 19 and 20: B-6. SPEED CHANGE (Feed frequency :
Page 21 and 22: C-1. BACKSTOPPING FOR LOW-SPEED OVE
Page 23 and 24: MZ SERIES CAM CLUTCH ■ MODELS MZ
Page 25 and 26: MZEU SERIES CAM CLUTCH Basic type 1
Page 27 and 28: E2 Flange + E3 Torque arm R Q S 1 8
Page 29 and 30: E5 Flange + E5 Flange BF 1 7 5 6 2
Page 31 and 32: COUPLING 2 1 4 3 5 q MZEU cam clutc
Page 33 and 34: 200 SERIES CAM CLUTCH ■ MODELS B2
Page 35 and 36: A P - 2 - t BB SERIES CAM CLUTCH BB
Page 37 and 38: TFS SERIES CAM CLUTCH t rw ey q F F
Page 39 and 40: LD SERIES CAM CLUTCH ■ MODELS LD
Page 41 and 42: MX SERIES CAM CLUTCH ■ MODELS MX
Page 43 and 44: PO, PG, PS SERIES CAM CLUTCH ■ MO
Page 45 and 46: BS & BS-HS SERIES CAM CLUTCH Dimens
Page 47 and 48: BS & BS-HS SERIES CAM CLUTCH Dimens
Page 49 and 50: BS-R SERIES CAM CLUTCH ■ MODELS B
Page 51 and 52: BS-R SERIES CAM CLUTCH ■ BS-R INS
Page 53 and 54: TORQUE ARM FOR BS SERIES ■ TORQUE
Page 55 and 56: BSEU SERIES CAM CLUTCH J D2 dH7
Page 57 and 58: BR SERIES CAM CLUTCH ■ MODELS BR2
Page 59 and 60: ■ USING THE BR SERIES OPEN TYPE C
Page 61 and 62: BREU SERIES CAM CLUTCH Capacities T
Page 63 and 64:
E1 Flange + E2 Flange 1 6 5 4 2 3 7
Page 65 and 66:
E3 Torque arm + E4 Cover 1 6 5 4 2
Page 67 and 68:
E2 Flange + E7 Flange 1 7 5 4 2 3 6
Page 69 and 70:
Lubrication BREU series Cam Clutche
Page 71 and 72:
MR SERIES CAM CLUTCH ■ MODELS MR
Page 73 and 74:
MZ-C, MG-C SERIES CAM CLUTCH ■ MO
Page 75 and 76:
OB-ON SERIES CAM CLUTCH BOX ■ MOD
Page 77 and 78:
TB SERIES CAM CLUTCH BOX ■ MODELS
Page 79 and 80:
a) Calculate the static torque reve
Page 81 and 82:
■ LUBRICATION FOR THE BR SERIES B
Page 83 and 84:
■ LUBRICANT REPLENISHING METHOD F
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■ LIFE OF BR SERIES CAM CLUTCH Th
Page 87 and 88:
TFS Series 6000 5000 4000 3000 2000
Page 89 and 90:
MG MI MR Series 200000 100000 50000
Page 91 and 92:
TB Series Speed of rotation (r/min)
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CAM CLUTCH

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