Power Jacks EMA Actuators - Manual (Page 15)

EMA Linear Actuator
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9. Parts List - General
(refer to section 9.1 for EMA Electric Linear Actuator general assembly diagram)
Item
Description
1. Gearbox housing
2. Rear clevis guide bush.
3. Pinnion bearing
4. Pinnion
5. Pinnion bearing
6. Shims
7. Thrust ring
8. Circlip
9. Grub screw for locking bearing cap.
10. Shims
11. Rear bearing for gear
12. Grub screw for locking gear to lifting screw.
13. Gear
14. Front bearing for gear.
15. Bearing end cap
16. Lead screw (trapezoidal or ball screw).
17. Emergency end stop pin
18. Outer tube
19. Guide bush for ram
20. Seal/wiper unit for ram
21. Lifting nut
22. Grub screw for locking ram to lifting nut.
23. Inner tube (ram)
24. Clutch - Distance piece
25. Clutch - Bearing washer (raceway)
26. Clutch - Bearing cage assembly
27. Clutch - Spindle
28. Clutch - Housing
29. Clutch - Ring Assembly (Lock nut, tab washer, conical ring)
30. Ram end (clevis, fork end or top plate)
31. Grub screw for locking ram end.
32. Electric motor
33. Trunnion Ring - Not shown on diagram (welded to outer
tube at customer specified point)