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
1 

Item #

Item Name

Size

Dimension F

Dimension H1

Dimension D6

Dimension H9

Weight

Inertia

Manufacturer

411778 N/A Single Drum N/A 12CB350 N/A 0.75 in19 mm N/A 12 in305 mm N/A 6.00 in152 mm N/A 13.125 in333.4 mm N/A 26 lb2.9 kg N/A 6.4 lb·ft²0.27 kg·m² N/A Eaton-Airflex
411779 N/A Single Drum N/A 14CB400 N/A 0.75 in19 mm N/A 14 in356 mm N/A 6.63 in168 mm N/A 17.250 in438.2 mm N/A 45 lb8.2 kg N/A 18 lb·ft²0.76 kg·m² N/A Eaton-Airflex
411780 N/A Single Drum N/A 16CB500 N/A 0.75 in19 mm N/A 16 in406 mm N/A 8.00 in203 mm N/A 19.250 in489 mm N/A 63 lb14 kg N/A 31 lb·ft²1.3 kg·m² N/A Eaton-Airflex
411781 N/A Single Drum N/A 18CB500 N/A 0.75 in19 mm N/A 18 in457 mm N/A 8.00 in203 mm N/A 21.375 in542.9 mm N/A 72 lb20 kg N/A 44 lb·ft²1.85 kg·m² N/A Eaton-Airflex
411782 N/A Single Drum N/A 20CB500 N/A 1.00 in25 mm N/A 20 in508 mm N/A 8.00 in203 mm N/A 25.250 in641.4 mm N/A 126 lb46 kg N/A 102 lb·ft²4.28 kg·m² N/A Eaton-Airflex
411783 N/A Single Drum N/A 22CB500 N/A 1.00 in25 mm N/A 22 in559 mm N/A 8.00 in203 mm N/A 25.250 in641.4 mm N/A 115 lb47 kg N/A 103 lb·ft²4.33 kg·m² N/A Eaton-Airflex
411784 N/A Single Drum N/A 24CB500 N/A 1.00 in25 mm N/A 24 in610 mm N/A 8.00 in203 mm N/A 27.250 in692.2 mm N/A 130 lb63 kg N/A 139 lb·ft²5.84 kg·m² N/A Eaton-Airflex
411786 N/A Single Drum N/A 26CB525 N/A 1.00 in25 mm N/A 26 in660 mm N/A 8.50 in216 mm N/A 29.250 in743 mm N/A 144 lb81 kg N/A 178 lb·ft²7.48 kg·m² N/A Eaton-Airflex
411785 N/A Single Drum N/A 28CB525 N/A 1.00 in25 mm N/A 28 in711 mm N/A 8.50 in216 mm N/A 30.250 in768.4 mm N/A 143 lb91 kg N/A 200 lb·ft²8.4 kg·m² N/A Eaton-Airflex
411787 N/A Single Drum N/A 30CB525 N/A 1.00 in25 mm N/A 30 in762 mm N/A 8.50 in216 mm N/A 33.000 in838.2 mm N/A 166 lb123 kg N/A 271 lb·ft²11.38 kg·m² N/A Eaton-Airflex
411788 N/A Single Drum N/A 32CB525 N/A 1.00 in25 mm N/A 32 in813 mm N/A 8.50 in216 mm N/A 35.250 in895.4 mm N/A 177 lb148 kg N/A 327 lb·ft²13.73 kg·m² N/A Eaton-Airflex
411789 N/A Single Drum N/A 36CB525 N/A 1.00 in25 mm N/A 36 in914 mm N/A 8.50 in216 mm N/A 39.250 in997 mm N/A 199 lb209 kg N/A 462 lb·ft²19.4 kg·m² N/A Eaton-Airflex
411790 N/A Single Drum N/A 40CB525 N/A 1.00 in25 mm N/A 40 in1016 mm N/A 8.50 in216 mm N/A 43.250 in1098.6 mm N/A 220 lb286 kg N/A 631 lb·ft²26.5 kg·m² N/A Eaton-Airflex
411791 N/A Single Drum N/A 45CB525 N/A 1.00 in25 mm N/A 45 in1143 mm N/A 8.50 in216 mm N/A 48.250 in1225.6 mm N/A 248 lb405 kg N/A 893 lb·ft²37.51 kg·m² N/A Eaton-Airflex
408648 N/A Dual Drum N/A 12CB350 N/A 0.75 in19 mm N/A 12 in305 mm N/A 12.06 in306 mm N/A 17.250 in438.2 mm N/A 100 lb1.18 kg N/A 28 lb·ft² N/A Eaton-Airflex
411707 N/A Dual Drum N/A 14CB400 N/A 0.75 in19 mm N/A 14 in356 mm N/A 13.00 in330 mm N/A 21.375 in542.9 mm N/A 103 lb1.97 kg N/A 47 lb·ft² N/A Eaton-Airflex
408682 N/A Dual Drum N/A 16CB500 N/A 0.75 in19 mm N/A 16 in406 mm N/A 14.31 in363 mm N/A 25.250 in641.4 mm N/A 182 lb82 kg N/A 103 lb·ft²4.33 kg·m² N/A Eaton-Airflex
410523 N/A Dual Drum N/A 18CB500 N/A 0.75 in19 mm N/A 18 in457 mm N/A 16.00 in406 mm N/A 25.250 in641.4 mm N/A 201 lb91 kg N/A 126 lb·ft²5.29 kg·m² N/A Eaton-Airflex
404605 N/A Dual Drum N/A 20CB500 N/A 1.00 in25 mm N/A 20 in508 mm N/A 16.00 in406 mm N/A 25.250 in641.4 mm N/A 191 lb87 kg N/A 144 lb·ft²6.05 kg·m² N/A Eaton-Airflex
406030 N/A Dual Drum N/A 22CB500 N/A 1.00 in25 mm N/A 22 in559 mm N/A 16.00 in406 mm N/A 25.250 in641.4 mm N/A 186 lb84 kg N/A 159 lb·ft²6.68 kg·m² N/A Eaton-Airflex
402145 N/A Dual Drum N/A 24CB500 N/A 1.00 in25 mm N/A 24 in610 mm N/A 16.00 in406 mm N/A 27.250 in692.2 mm N/A 208 lb94 kg N/A 212 lb·ft²8.9 kg·m² N/A Eaton-Airflex
411453 N/A Dual Drum N/A 26CB525 N/A 1.00 in25 mm N/A 26 in660 mm N/A 17.00 in432 mm N/A 29.250 in743 mm N/A 234 lb106 kg N/A 278 lb·ft²11.68 kg·m² N/A Eaton-Airflex
404942 N/A Dual Drum N/A 28CB525 N/A 1.00 in25 mm N/A 28 in711 mm N/A 17.00 in432 mm N/A 30.250 in768.4 mm N/A 240 lb109 kg N/A 326 lb·ft²13.69 kg·m² N/A Eaton-Airflex
Unit of Measure
1