The Rowland Company
The Rowland Company
4900 North 20th St.
Philadelphia, PA 19144
Toll Free: (800) 925-8824
Phone: (215) 455-4900
Fax: (215) 455-8888
Email: rowland@rowland2.com
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Section B
Form CB 428
The type CB element assembly is designed and built to provide dependable clutch or brake service in the most exacting industrial applications. It is suited to high speed, cyclic operations, as well as for coupling and general power transmission.
CB Mounting Components - External Flange Drums
Unit of Measure
Items CB Mounting Components - External Flange Drums
411778
Single Drum 		CB Mounting Components - External Flange Drums
411779
Single Drum 		CB Mounting Components - External Flange Drums
411780
Single Drum 		CB Mounting Components - External Flange Drums
411781
Single Drum 		CB Mounting Components - External Flange Drums
411782
Single Drum
Size N/A 12CB350 N/A 14CB400 N/A 16CB500 N/A 18CB500 N/A 20CB500
Dimension F N/A 0.75 in19 mm N/A 0.75 in19 mm N/A 0.75 in19 mm N/A 0.75 in19 mm N/A 1.00 in25 mm
Dimension H11 N/A 12 in305 mm N/A 14 in356 mm N/A 16 in406 mm N/A 18 in457 mm N/A 20 in508 mm
Dimension D6 N/A 6.00 in152 mm N/A 6.63 in168 mm N/A 8.00 in203 mm N/A 8.00 in203 mm N/A 8.00 in203 mm
Dimension H9 N/A 13.125 in333.4 mm N/A 17.250 in438.2 mm N/A 19.250 in489 mm N/A 21.375 in542.9 mm N/A 25.250 in641.4 mm
Dimension H102 N/A 13.875 in352.4 mm N/A 18.375 in466.7 mm N/A 20.375 in517.5 mm N/A 22.500 in571.5 mm N/A 26.500 in673.1 mm
Number of Mounting Holes N/A 8 N/A 8 N/A 8 N/A 6 N/A 12
Bolt Diameter L N/A 0.406 in10 mm N/A 0.531 in13 mm N/A 0.531 in13 mm N/A 0.531 in13 mm N/A 0.656 in17 mm
Weight N/A 26 lb2.9 kg N/A 45 lb8.2 kg N/A 63 lb14 kg N/A 72 lb20 kg N/A 126 lb46 kg
Inertia N/A 6.4 lb·ft²0.27 kg·m² N/A 18 lb·ft²0.76 kg·m² N/A 31 lb·ft²1.3 kg·m² N/A 44 lb·ft²1.85 kg·m² N/A 102 lb·ft²4.28 kg·m²
Manufacturer N/A Eaton-Airflex
  • 1 Tolerance +0.000/-0.010 in (+0.00/-0.25 mm).
  • 2 Tolerance +0.000/-0.010 in (+0.00/-0.25 mm).