RAM 1550-8 AK1G, Instructions, Parts And Maintenance Manual

Single Reduction Parts List

E n g i n e e r i n g   D a t a

157

800-654-6220 CA

800-866-7973 IN

Item # Description

Basic Single Reduction Unit

1.

Gear Housing

2.

Pipe Plug

3.

Vent Plug

4.

Splash Guard

5.

Input Cover

6.

O-Ring

7.

Hex Head Cap Screw

8.

Input Oil Seal

9.

Input Bearing

10.

Input Bearing

*11.

Retaining Screw

12.  Input Shaft
13.

Output Cover

14.

Output Cover

15.

O-Ring

16.

Output Cover Gasket (as required)

17.

Output Oil Seal

18.

Output Bearing

19.

Hex Head Cap Screw

***20. Single Output Shaft
***21. Double Output Shaft

22. Gear Spacer
23. Gear Key (only used on size 2-5/8” center distance 

and larger units)

24. Output Gear (supplied only with output gear 

on size 1-1/3” through 2-3/8” center distance units)

25. Input Cover (only used on size 4-1/4” center 

distance and larger units)

26. Input Cover
27.

Input Oil Seal

*28.

Retaining Ring - Shaft

29.

Double Input Shaft

170. Internal Pressure Compensation Chamber (optional)
171. Internal Pressure Compensation Chamber Stem Plug
172. Internal Pressure Compensation Chamber Stem Nut

*not used on 4-1/4” center distance and larger units

Quill Motor Flange Unit 

30.

Double Input Shaft

40.  Quill Motor Flange
41.

Input Oil Seal

42.

Hex Head Cap Screw

43.

Retaining Ring - Shaft

44.

Retaining Ring - Housing (only used 
on size 4-1/4” center distance and larger units)

45.

Quill Input Shaft

Hollow Output Shaft Unit 

50.

Gear Housing

51.

Output Cover

52.

Output Oil Seal

53.

Output Bearing

54.

Gear Spacer

***55.

Output Shaft 

56. Setscrew
57.

Gear Key (only used on size 2-5/8” center distance 

and larger units)

Item # Description

58. Output Gear (supplied only with output shaft on size 

11/3” through 2-3/8” center distance units)

Mounting Bracket Options

70. Horizontal Mounting Foot
71. Cap Screw
72. High and Low Riser Bracket
73. Hex Head Cap Screw
74. “J” Mount Bracket
75. Output Flange
76. Machine Faced Output Cover (only used on size 2-

3/8” center distance and larger solid output shaft 
units)

77.

Hex Head Cap Screw

78. Torque Bracket
79. Hex Head Cap Screw

Extended Bearing Unit

90.

Flange

91.

Output Shaft

92.

Bearing

93.

Output Oil Seal

94.

Hex Head Cap Screw

95.

Pipe Plug

96.

Expansion Plug

*97.

Flange Cover

*98.

Gasket

*99.

Hex Head Cap Screw

*only used on size 5-1/4” center distance and larger units

Long Motor Flange and Coupling Kit 

110.

“C” Face Motor Flange

111.

Hex Head Cap Screw

112.

Coupling Key - Reducer Shaft

113.

Setscrew - Reducer Shaft

114.

Coupling Gear - Reducer Shaft

115.

Coupling Sleeve

116.

Setscrew - Motor Shaft

117.

Coupling Gear - Motor Shaft

118.

Coupling Key - Motor Shaft

Vertical Shaft Required Parts

(Supplied only when mounting position 

involves a vertical shaft.)

*129.

Output Cover

*130.  Output Cover
*131.

Output Bearing Grease Retainer

132.

Grease Fitting

133.

Sealed Ball Bearing (only used on size 1-3/4” 

through 2-5/8” center distance units)

**134.

Input Cover

**136.

Input Bearing Grease Retainer

*

Only used on size 4-1/4” center distance and larger units.

** Only used on size 3” center distance and larger units.
*** Supplied only with output gear on size 1-1/3” through 

2-3/8” center distance units.

RAM P/N  AH00004

WORM GEAR REDUCER

PARTS DESCRIPTION