TSUBAKI E&M CO.
- 2 -
Construction
Installation and usage
1. MZEU series is a modular type Cam Clutch which is delivered as a MZEU series Basic type or MZEU-K series with option parts (E1, E2, E5,
E7 flanges, E3 Torque arm and E4 cover) which are required as separate parts.
2. MZeu12 to MZEU80 are pre-greased and require no lubrication. The operational temperature range is -40F(
–40°C) to 104F(+40°C).
MZEU90 to MZEU150 require oil lubrication.
3. Recommended tolerance of shaft and attaching parts pulley, gear or sprocket to the clutch is shown below.
Clutch Bore or OD of Outer race
Fit Guide
0 to 1.20 inches dia.
0 to 30mm dia.
Line fit to .0008 inches loose
(0.020mm)
1.20 to 2.00 inches dia.
30mm to 50mm dia.
Line fit to .0010 inches loose
(0.025mm)
2.00 to 3.15 inches dia.
50mm to 80mm dia.
Line fit to .0012 inches loose
(0.030mm)
3.15 to 4.70 inches dia.
80mm to 120mm dia.
Line fit to .0014 inches loose
(0.036mm)
4.70 to 7.10 inches dia.
120mm to 180mm dia.
Line fit to .0016 inches loose
(0.041mm)
7.10 to 9.85 inches dia.
180mm to 250mm dia.
Line fit to .0018 inches loose
(0.046mm)
9.85 to 12.40 inches dia.
250mm to 315mm dia.
Line fit to .0020 inches loose
(0.051mm)
12.40 to 15.70 inches dia.
315mm to 400mm dia.
Line fit to .0023 inches loose
(0.058mm)
4. The key should be in accordance with DIN6885.1.
5. Clean the surface of both end of the outer race and the contact surfaces of the flanges, torque arm and cover.
6. Apply seal adhesive to the surface of the outer race at both ends for model MZEU90 to MZEU150.
7. Verify the direction of rotation and attach the flanges, torque arm or cover.
8. When installing sprocket, gear, and other equipment to the clutch, fit them on the surface of the flange by using hexagon socket cap screws.
8. By installing each option part on the opposite side, the direction of rotation can be changed.
9. Fix the grease nipple and set screw to the option parts for model MZEU12 to MZEU80.
10. When mounting the clutch onto the shaft, apply pressure to the inner race but never to the outer race. Tap the inner race lightly with a soft
hammer moving around the race circumference so the Cam Clutch moves slowly and uniformly onto the end of the shaft.
①
Inner race
②
Outer race
③
Cam
④
Spring
⑤
Bearing
⑥
Side plate
MZEU12 to MZEU80
①
Inner race
②
Outer race
③
Cam cage
④
Snap ring
⑤
Bearing
⑥
Plug
MZEU90 to MZEU150
