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Performance Specifications
Magnaloy’s design features which incorporate our exclusive Load-Lock design, Radial Drive Lug orientation and precision machined permanent mold Magnesium castings offer the greatest strength to weight ratio available in the industry. The following Performance Specification table illustrates these features. For proper coupling selection see the Magnaloy Coupling Selection Guide and use the proper Service Factor for the application.

 
Model
Size		 Max
Bore		 Wr2
(lb-ft2)		 Insert
Number		 Rated
Torque
(in-lb)		 Torsional
Rigidity
(in-lb/Deg)		 HP Rating
@100 RPM
PM90 1 1/8 .946 97N
97U
97H		 224.0  
336.0  
672.0   		38.3   
69.9   
158.7    		.36   
.54   
1.08   
100 1 1/8 .0046 170N
170U
170H		 340.7  
511.0  
1,022.1   		42      
53      
182       		.55   
.82   
1.65   
200 1 3/8 .0068 270N
270U
270H		 398.3  
597.4  
1,194.9   		55      
68      
234       		.64   
.96   
1.92   
300 1 5/8 .022 370N
370U
370H		 701.4  
1,052.1  
2,104.2   		81      
148      
336       		1.12   
1.68   
3.36   
400 1 7/8 .031 470N
470U
470H		 1,056.3  
1,584.5  
3,168.9   		138      
310      
488       		1.69   
2.5     
5.1     
500 2 3/8 .071 570N
570U
570H		 2,194.8  
3,292.2  
6,584.4   		314      
695      
1,571       		3.5     
5.3     
10.5     
600 2 5/8 .16 670N
670U
670H		 4,946.7  
7,420.1  
14,840.1   		676      
1,510      
2,960       		7.9     
11.9     
23.7     
700 2 7/8 .34 770N
770U
770H		 11,639.8  
17,459.7  
29,099.5   		1,805      
2,104      
5,960       		18.6     
27.9     
46.5     
800 3 7/8 .95 870N
870U
870H		 21,889.4  
32,834.1  
47,062.2   		3,680      
--         
11,950       		35.0     
52.5     
75.2     
900 4 3/4 4.20 970N
970U		 47,842.3  
71,763.5   		8,428      
--          		76.5     
114.8     


 
 

Service Factors - Load Characteristics
 

Type of Prime Mover

Load Classification

 Standard Motor
or Turbine		 High Torque
Motor		 I.C. Engine
6 or more cyl.		 I.C. Engine
less than 6 cyl.
 Uniform (U) 1.0 1.5 1.5 2.0**
 Moderate (M) 1.5 2.0 2.0* 2.5**
 Heavy (H) 2.0* 2.5* 2.5* 3.0**

 
Uniform Load:
 		 Steady loading, non-reversing, torque does not exceed rating of prime mover.
 
Moderate Load:
 		 Uneven loading with moderate shock, frequent starts, infrequent reversals, peak torque may exceed rating of prime mover by 125%.
 
Heavy Load:
 		 Uneven loading with heavy shock, frequent reversals, peak torque may exceed rating of prime mover by 150%.
 
* Recommend use of Urethane or Hytrel Insert.
** Recommend use of Hytrel Insert.

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