Nexen 909903 is an air engaged tooth clutch with spring release, featuring a machined aluminum air chamber and black oxide pilot. It has a 13 mm unfinished blank bore (finishable up to 25 mm), 230 Nm max static torque, and 3700 RPM max speed. This open design shaft mount clutch is CE and RoHS certified.

Air chamber volume

7.194 cm³

Backlash

0.38 °

Bore details

Unfinished Pilot Bore

Bore size

13 mm, Blank Bore can be finished up to 25 mm

Bore style

Unfinished Blank Bore

CE certified

CE

Clutch response factor

0.06

Drive inertia

15.03 kgcm²

Enclosure

Open

Engagement method

Air

Finish

Machined aluminum air chamber

Hose length

222 mm

Inlet size

0.250-18 BSPTM

Input shaft securement

None, Requires Customer Supplied Collars, Shaft Step And/Or Snap Ring Grooves

Length

93.3 mm

Materials of construction

Machined Aluminum Air Chamber Black Oxide Pilot

Max ambient temperature (°C)

66

Max bore size

25 mm

Max operating pressure (bar)

6.0

Max Speed

3700 RPM

Max static clutch torque

230 Nm

Min ambient temperature (°C)

0

Min bore size

13 mm

Min engagement pressure (bar)

1.4

Min sprocket size

35/40T, 40/32T, 50/26T, 60/22T, 80/17T

Min static clutch torque

51 Nm

Mounting style

Shaft

Number of engagement positions

91

Open or enclosed design

Open

Outer Diameter

115.8 mm

Output bolt circle

88 mm

Output bolt hole size

3, 4 M6-1.00 mm, Holes @ 120° And 90°

Output configuration

Pilot

Output pilot height

17.4 mm

Positioning

Non-Positioning

Product features

Air Engaged, Spring Released, Pilot Mount, Non-Positioning

Release method

Spring

Restrictions

Consult Nexen For Use In Cyclic Applications Or Engagement At Differential Speeds

RoHS compliant

RoHS

RPM

3700

Shaft inertia

3.83 kgcm²

Unit height

7.5 in

Unit width

6.25 in