Nexen 803900 is an air engaged through shaft mount clutch with a 1.125 in machined bore with keyway. It features a black oxide finish, open design, and standard coefficient clutch facing. The clutch delivers 370 inlb of static torque at 1800 RPM and includes a V-belt pulley output with a 4.50 in OD sheave. Suitable for shaft mounting with optional adapter bushings for bore reduction.

Approximate clutch facing life

572 hphr

Backlash

0.44 °

Bore details

Straight

Bore size

1.125 in, Machined Bore with Keyway, 0.625-1.000 in with Optional Adapter Bushings

Bore style

Machined Bore with Keyway, Nexen Adapter Bushing Required

CE certified

CE

Clutch air chamber volume when new

0.327 in³

Clutch air chamber volume when worn out

0.855 in³

Clutch facing edge color code

Red

Clutch facing effective area

18.62 in²

Clutch Facing Type

Standard coefficient

Clutch heat sink capacity

60000 ftlb

Clutch peak thermal input rate

16.80 hp

Clutch response factor

0.06

Drive inertia

27.83 lbin²

Enclosure

Open

Engagement method

Air

Finish

Black oxide

Inlet size

0.125 NPT

Input bore min shaft insertion

2.50 in, From Pilot End Full From Air Chamber End

Input keyway

0.250 x 0.250 x 1.375L in

Length

5.56 in

Materials of construction

Black oxide

Max ambient temperature (°F)

150

Max bore size

28.575 mm

Max clutch continuous thermal dissipation

0.40 hp

Max operating pressure (psi)

80

Max Speed

1800 RPM

Max static clutch torque

370 inlb

Min ambient temperature (°F)

32

Min bore size

15.875 mm

Min engagement pressure (psi)

5

Mounting style

Shaft

Open or enclosed design

Open

Outer Diameter

6.06 in

Output shaft style

None

Output type

V-Belt Pulley, 2-3V, 4.50 in OD Sheave

Product features

Air Engaged, Keyed, Straight Bore, Shaft Mount

Release method

Spring

Restrictions

This Clutches Bore Can Be Reduced With The Bushings Found In Accessories To The Left

RoHS compliant

RoHS

RPM

1800

Shaft inertia

16.13 lbin²