DE-STA-CO INDEX DRIVES GENERAL SERVICE MANUAL - Manual (Page 4)

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Warnings and Cautions
Statements in this manual preceded by the words WARNING or CAUTION and printed in italics are very
important. We recommend you take special notice of these during service or repair.
WARNING
Means there is the possibility of personal injury to yourself or others.
CAUTION
Means there is the possibility of damage to the CAMCO unit.
Interpretation of Index Drive Model Numbers
In an effort to better understand the type of Index Drive you have purchased, the complete model
number as it appears on the name tag can be divided into five (5) main components.
CAMCO EXAMPLE: 250P4H20-270
250 P 4 H20- 270
(1) (2) (3) (4) (5)
1. The basic CAMCO model series, usually the pitch diameter of the cam follower circle (i.e. 250
means 2.5" diameter).
2. The type of cam and output configuration
P = Parallel cam unit
RA = Right angle cam unit
RAD = Right angle cam / dial mounting output
RD = Roller gear cam / dial mounting output
RG = Roller gear cam unit
RDM = Roller gear cam / dial mounting output / motorized
RNG = Ring index drive
E
= Heavy duty right angle cam units / dial mounting
3. The number of stops.
Four (4) stops means the output shaft will make four starts and stops during one complete
360 degree revolution. The angle of each segment of output rotation (index distance) is
found by dividing 360 by the number of stops.
EXAMPLE: 4 stops = 360/4 = 90° per index
4. Cam follower size in 32nds of an inch.
For example
H20 = 20/32 = .625 inch diameter followers
H96 = 96/32 = 3.00 inch diameter followers
5. Cam motion in degrees.
The cam is divided into two basic parts, motion and dwell. Motion is the angular segment in
which the cam does its work rotating the output shaft one complete index.