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 420
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 - Internal Flange Drums
Unit of Measure
1 2 

Item #

Item Name

Size

Type

Dimension D31

Dimension H1

Dimension H9

Dimension H10

Weight

Inertia

Manufacturer

407058 N/A Single Drum N/A 24CB500 N/A Tapped Holes N/A 1.00 in25 mm N/A 24 in610 mm N/A 19.750 in501.7 mm N/A 18.000 in457.2 mm N/A 93 lb42 kg N/A 80 lb·ft²3.36 kg·m² N/A Eaton-Airflex
408342 N/A Single Drum N/A 26CB525 N/A Tapped Holes N/A 1.00 in25 mm N/A 26 in660 mm N/A 21.500 in546.1 mm N/A 19.500 in495.3 mm N/A 108 lb49 kg N/A 110 lb·ft²4.62 kg·m² N/A Eaton-Airflex
407060 N/A Single Drum N/A 28CB525 N/A Tapped Holes N/A 1.00 in25 mm N/A 28 in711 mm N/A 23.500 in596.9 mm N/A 21.500 in546.1 mm N/A 117 lb53 kg N/A 140 lb·ft²5.88 kg·m² N/A Eaton-Airflex
408344 N/A Single Drum N/A 30CB525 N/A Tapped Holes N/A 1.00 in25 mm N/A 30 in762 mm N/A 25.000 in635 mm N/A 23.000 in584.2 mm N/A 140 lb63 kg N/A 192 lb·ft²8.06 kg·m² N/A Eaton-Airflex
407062 N/A Single Drum N/A 32CB525 N/A Tapped Holes N/A 1.00 in25 mm N/A 32 in813 mm N/A 27.000 in685.8 mm N/A 25.000 in635 mm N/A 160 lb72 kg N/A 252 lb·ft²10.58 kg·m² N/A Eaton-Airflex
407064 N/A Single Drum N/A 36CB525 N/A Tapped Holes N/A 1.00 in25 mm N/A 36 in914 mm N/A 31.000 in787.4 mm N/A 29.000 in736.6 mm N/A 180 lb81 kg N/A 319 lb·ft²13.4 kg·m² N/A Eaton-Airflex
407066 N/A Single Drum N/A 40CB525 N/A Tapped Holes N/A 1.00 in25 mm N/A 40 in1016 mm N/A 34.500 in876.3 mm N/A 32.500 in825.5 mm N/A 209 lb95 kg N/A 523 lb·ft²21.97 kg·m² N/A Eaton-Airflex
411860 N/A Dual Drum N/A 12CB3500 N/A Thru Holes N/A 0.75 in19 mm N/A 12 in305 mm N/A 7.250 in184.2 mm N/A 6.250 in158.8 mm N/A 61 lb61 kg N/A 13 lb·ft²0.55 kg·m² N/A Eaton-Airflex
411861 N/A Dual Drum N/A 14CB4000 N/A Thru Holes N/A 0.75 in19 mm N/A 14 in356 mm N/A 9.250 in235 mm N/A 8.250 in209.6 mm N/A 83 lb83 kg N/A 24 lb·ft²1.01 kg·m² N/A Eaton-Airflex
411862 N/A Dual Drum N/A 16CB500 N/A Thru Holes N/A 0.75 in19 mm N/A 16 in406 mm N/A 12.000 in304.8 mm N/A 10.750 in273.1 mm N/A 109 lb109 kg N/A 43 lb·ft²1.81 kg·m² N/A Eaton-Airflex
411863 N/A Dual Drum N/A 18CB500 N/A Thru Holes N/A 1.00 in25 mm N/A 18 in457 mm N/A 13.500 in342.9 mm N/A 12.125 in308 mm N/A 126 lb126 kg N/A 63 lb·ft²2.65 kg·m² N/A Eaton-Airflex
411864 N/A Dual Drum N/A 20CB500 N/A Thru Holes N/A 1.00 in25 mm N/A 20 in508 mm N/A 16.000 in406.4 mm N/A 14.625 in371.5 mm N/A 139 lb139 kg N/A 87 lb·ft²3.65 kg·m² N/A Eaton-Airflex
411865 N/A Dual Drum N/A 22CB500 N/A Thru Holes N/A 1.00 in25 mm N/A 22 in559 mm N/A 18.500 in469.9 mm N/A 16.750 in425.5 mm N/A 152 lb152 kg N/A 117 lb·ft²4.91 kg·m² N/A Eaton-Airflex
411866 N/A Dual Drum N/A 24CB500 N/A Thru Holes N/A 1.00 in25 mm N/A 24 in610 mm N/A 19.750 in501.7 mm N/A 18.000 in457.2 mm N/A 173 lb173 kg N/A 156 lb·ft²6.55 kg·m² N/A Eaton-Airflex
411867 N/A Dual Drum N/A 26CB525 N/A Thru Holes N/A 1.00 in25 mm N/A 26 in660 mm N/A 21.500 in546.1 mm N/A 19.500 in495.3 mm N/A 198 lb198 kg N/A 211 lb·ft²8.86 kg·m² N/A Eaton-Airflex
411868 N/A Dual Drum N/A 28CB525 N/A Thru Holes N/A 1.00 in25 mm N/A 28 in711 mm N/A 23.500 in596.9 mm N/A 21.500 in546.1 mm N/A 216 lb216 kg N/A 268 lb·ft²11.26 kg·m² N/A Eaton-Airflex
411869 N/A Dual Drum N/A 30CB525 N/A Thru Holes N/A 1.00 in25 mm N/A 30 in762 mm N/A 25.000 in635 mm N/A 23.000 in584.2 mm N/A 237 lb237 kg N/A 337 lb·ft²14.15 kg·m² N/A Eaton-Airflex
411870 N/A Dual Drum N/A 32CB525 N/A Thru Holes N/A 1.00 in25 mm N/A 32 in813 mm N/A 27.000 in685.8 mm N/A 25.000 in635 mm N/A 254 lb254 kg N/A 413 lb·ft²17.35 kg·m² N/A Eaton-Airflex
411871 N/A Dual Drum N/A 36CB525 N/A Thru Holes N/A 1.00 in25 mm N/A 36 in914 mm N/A 31.000 in787.4 mm N/A 29.000 in736.6 mm N/A 287 lb287 kg N/A 597 lb·ft²25.07 kg·m² N/A Eaton-Airflex
411872 N/A Dual Drum N/A 40CB525 N/A Thru Holes N/A 1.00 in25 mm N/A 40 in1016 mm N/A 34.500 in876.3 mm N/A 32.500 in825.5 mm N/A 327 lb327 kg N/A 840 lb·ft²35.28 kg·m² N/A Eaton-Airflex
Unit of Measure
1 2