CONNECTING RODS

Models CR, OTRE and OTRC
Standard, Extension & Compression Overtravel

 Model CR Connecting Rods are used whenever a fixed distance of motion transfer is required.

 Models OTRE and OTRC extension and compression spring-loaded overtravel rods are used to transfer motion to a component that requires a more precise position at the end of its displacement. In such instance, the cam and lever linkage is not capable of achieving the desired accuracy of stroke and a 'kiss block' is used to limit the stroke thus permitting the cam to "overthrow" slightly. The difference is taken up by the over-travel rod. Therefore, the cam follower remains on the cam throughout the cycle, preventing severe shock and or peening.

 Model OTRE provides an extension of the rod when the force is great enough to overcome the spring. This connecting rod extends under load and is positive in compression.

 Model OTRC provides a compression of the rod when the force is great enough to overcome the spring. This connecting rod compresses under load and is positive in tension.

 All models feature one right hand and one left hand threaded rod end for easy length adjustment.
CAD files are available.

Catalog
Number		 D
+.002 -.001
[+.06 -.03]		 C Range of
Adjust.
+ / -
CR-1 .250
[6.35]		 .312
[7.94]		 .50
[12.7]
CR-2 .312
[7.94]		 .375
[9.53]		 .50
[12.7]
CR-3 .375
[9.53]		 .437
[11.11]		 .56
[14.2]
CR-4 .437
[11.11]		 .500
[12.70]		 .62
[15.8]
CR-5 .500
[12.70]		 .562
[14.29]		 .68
[17.4]
Catalog Number Dia. D
+.002 -.001
[+.06 -.03]		 X A B Pre-Load
Lb.
[N]		 Load @X
Lb.
[N]		 L Minimum Range
of
Adjust.
Extension Compression OTRE  OTRC 
OTRE-1 OTRC-1 0.250
[6.35]		 1.00
[25.4]		 0.93
[23.6]		 4.37
[111.0]		 18.9
[84]		 22.4
[100]		 7.00
[177.8]		 8.00
[203.2]		 +.62
-.37
·
[+15.7]
[-9.4]
OTRE-2 OTRC-2 2.00
[50.8]		 5.62
[142.7]		 14.4
[64]		 24.5
[109]		 8.25
[209.6]		 10.25
[260.4]
OTRE-3 OTRC-3 3.00
[76.2]		 6.37
[161.8]		 11.7
[52]		 22.2
[99]		 9.00
[228.6]		 12.00
[304.8]
OTRE-4 OTRC-4 4.00
[101.6]		 8.62
[218.9]		 12.0
[53]		 21.5
[96]		 11.25
[285.8]		 15.25
[387.4]
OTRE-5 OTRC-5 0.313
[7.94]		 1.00
[25.4]		 1.25
[31.8]		 4.37
[111.0]		 18.9
[84]		 22.4
[100]		 7.37
[187.2]		 8.37
[212.6]		 +/- .50
·
[+/-12.7]
OTRE-6 OTRC-6 2.00
[50.8]		 5.62
[142.7]		 14.4
[64]		 24.5
[109]		 8.62
[218.9]		 10.62
[269.7]
OTRE-7 OTRC-7 3.00
[76.2]		 6.37
[161.8]		 11.7
[52]		 22.2
[99]		 9.37
[238.0]		 12.37
[314.2]
OTRE-8 OTRC-8 4.00
[101.6]		 8.62
[218.9]		 12.0
[53]		 21.5
[96]		 11.62
[295.1]		 15.62
[396.7]
OTRE-9 OTRC-9 0.375
[9.53]		 1.00
[25.4]		 1.31
[33.3]		 4.37
[111.0]		 18.9
[84]		 22.4
[100]		 7.75
[196.9]		 8.85
[224.8]		 +/- .50
·
[+/-12.7]
OTRE-10 OTRC-10 2.00
[50.8]		 5.62
[142.7]		 14.4
[64]		 24.5
[109]		 9.00
[228.6]		 11.00
[279.4]
OTRE-11 OTRC-11 3.00
[76.2]		 6.37
[161.8]		 11.7
[52]		 22.2
[99]		 9.75
[247.7]		 12.75
[323.9]
OTRE-12 OTRC-12 4.00
[101.6]		 8.62
[218.9]		 12.0
[53]		 21.5
[96]		 12.00
[304.8]		 16.00
[406.4]
Selecting Connecting Rods: CR, OTRE, and OTRC connecting rods may be used in conjunction with the entire line of automated assembly components available from Dane.  Theoretical Buckling limits
How To Order Connecting Rods:
1.
2.		 Catalog Number
Length, "L" Dimension
 Example CR-2-20.00
Indicates a standard connecting rod,with .312 inch rod end holes,
.375 inch hexrod and 20 inches between rod end holes.
Example OTRE-4-16.38
Indicates an Overtravel Extension Connecting Rod with .250 inch rod
end holes, 4.00 inch overtravel and 16.38 inches between rod end holes.
Example OTRC-1-10.50
Indicates an Overtravel Compression Connecting Rod with .250 inch rod
end holes, 1.00 inch overtravel and 10 1/2 inches between rod end holes.
Note: Indicate "L" dimension to two decimals. We will ship the rod assembled to within .06 of that dimension.
Finish & Material Specifications:
Item Finish Material
CR Hex Stk. Black Oxide Low Carbon Steel
Rod Ends Cadmium Plate
Over Travel Rod None
 Ion Nitrided Steel
Over Travel Barrel Black Oxide 
Notes:
1. The length "L" is established when thread
   engagement in the rod end is nominal to
   provide listed adjustment range. Note that
   OTR* 1-4 rod adjustment range is asymetrical
   to the target design "L". 

2. Additional cost for any length 'L' greater
   than 60 inches, [1.5 M]
Tolerances of dimensions
unless specified otherwise:
Decimal Precision Tolerance
.xxx inches +/- .005
[.xx millimeters] [+/- .13]
.xx inches +/- .06
[.x millimeters] [+/- 1.5]
.x degrees +/- .1
x degrees [+/- .5]
 
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Date last modified - June 9, 2005