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

407043 N/A Single Drum N/A 6CB200 N/A Thru Holes N/A 0.50 in13 mm N/A 6 in152 mm N/A 4.250 in108 mm N/A 3.500 in88.9 mm N/A 5.5 lb2.5 kg N/A 0.3 lb·ft²0.01 kg·m² N/A Eaton-Airflex
407045 N/A Single Drum N/A 8CB250 N/A Thru Holes N/A 0.75 in19 mm N/A 8 in203 mm N/A 5.250 in133.4 mm N/A 4.250 in108 mm N/A 12.5 lb5.7 kg N/A 1.1 lb·ft²0.05 kg·m² N/A Eaton-Airflex
407047 N/A Single Drum N/A 10CB300 N/A Thru Holes N/A 0.75 in19 mm N/A 10 in254 mm N/A 7.250 in184.2 mm N/A 6.250 in158.8 mm N/A 19 lb8.6 kg N/A 2.7 lb·ft²0.11 kg·m² N/A Eaton-Airflex
407049 N/A Single 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 30 lb14 kg N/A 5.9 lb·ft²0.25 kg·m² N/A Eaton-Airflex
407051 N/A Single 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 38 lb17 kg N/A 10.5 lb·ft²0.44 kg·m² N/A Eaton-Airflex
407053 N/A Single 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 50 lb23 kg N/A 19 lb·ft²0.8 kg·m² N/A Eaton-Airflex
408285 N/A Single 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 67 lb30 kg N/A 31 lb·ft²1.3 kg·m² N/A Eaton-Airflex
407055 N/A Single 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 72 lb33 kg N/A 43 lb·ft²1.81 kg·m² N/A Eaton-Airflex
408287 N/A Single 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 79 lb36 kg N/A 58 lb·ft²2.44 kg·m² N/A Eaton-Airflex
407057 N/A Single 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 93 lb42 kg N/A 80 lb·ft²3.36 kg·m² N/A Eaton-Airflex
408289 N/A Single 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 108 lb49 kg N/A 110 lb·ft²4.62 kg·m² N/A Eaton-Airflex
407059 N/A Single 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 117 lb53 kg N/A 140 lb·ft²5.88 kg·m² N/A Eaton-Airflex
408343 N/A Single 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 140 lb63 kg N/A 192 lb·ft²8.06 kg·m² N/A Eaton-Airflex
407061 N/A Single 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 160 lb72 kg N/A 252 lb·ft²10.58 kg·m² N/A Eaton-Airflex
407063 N/A Single 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 180 lb81 kg N/A 319 lb·ft²13.4 kg·m² N/A Eaton-Airflex
407065 N/A Single 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 209 lb95 kg N/A 523 lb·ft²21.97 kg·m² N/A Eaton-Airflex
407044 N/A Single Drum N/A 6CB200 N/A Tapped Holes N/A 0.50 in13 mm N/A 6 in152 mm N/A 4.250 in108 mm N/A 3.500 in88.9 mm N/A 5.5 lb2.5 kg N/A 0.3 lb·ft²0.01 kg·m² N/A Eaton-Airflex
407046 N/A Single Drum N/A 8CB250 N/A Tapped Holes N/A 0.75 in19 mm N/A 8 in203 mm N/A 5.250 in133.4 mm N/A 4.250 in108 mm N/A 12.5 lb5.7 kg N/A 1.1 lb·ft²0.05 kg·m² N/A Eaton-Airflex
407048 N/A Single Drum N/A 10CB300 N/A Tapped Holes N/A 0.75 in19 mm N/A 10 in254 mm N/A 7.250 in184.2 mm N/A 6.250 in158.8 mm N/A 19 lb8.6 kg N/A 2.7 lb·ft²0.11 kg·m² N/A Eaton-Airflex
407050 N/A Single Drum N/A 12CB3500 N/A Tapped 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 30 lb14 kg N/A 5.9 lb·ft²0.25 kg·m² N/A Eaton-Airflex
407052 N/A Single Drum N/A 14CB4000 N/A Tapped 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 38 lb17 kg N/A 10.5 lb·ft²0.44 kg·m² N/A Eaton-Airflex
407054 N/A Single Drum N/A 16CB500 N/A Tapped 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 50 lb23 kg N/A 19 lb·ft²0.8 kg·m² N/A Eaton-Airflex
408286 N/A Single Drum N/A 18CB500 N/A Tapped 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 67 lb30 kg N/A 31 lb·ft²1.3 kg·m² N/A Eaton-Airflex
407056 N/A Single Drum N/A 20CB500 N/A Tapped 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 72 lb33 kg N/A 43 lb·ft²1.81 kg·m² N/A Eaton-Airflex
408288 N/A Single Drum N/A 22CB500 N/A Tapped 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 79 lb36 kg N/A 58 lb·ft²2.44 kg·m² N/A Eaton-Airflex
Unit of Measure
1 2