Nexen 822466 is a spring engaged (fail-safe) shaft mount brake with a 50 mm machined straight bore and keyway. It delivers 280 Nm of static brake torque at 1800 RPM. The open design features a black oxide finish, 0.125 BSPT inlet, and anti-rotation holes. Suitable for cyclic dynamic, e-stop, and holding applications.

Anti rotation style

Anti-Rotation Holes, Optional Torque Pin Bracket

Approximate brake facing life

548 kWhr

Backlash

0.39 °

Bore details

Straight

Bore size

50 mm, Machined Bore with Keyway

Bore style

Machined Bore with Keyway

Brake air chamber volume when new

122.500 cm³

Brake air chamber volume when worn out

56.900 cm³

Brake facing edge color code

Purple

Brake facing effective area

198 cm²

Brake facing type

High Coefficient

Brake heat sink capacity

169000 Joule

Brake peak thermal input rate

20.90 kW

Brake response factor

0.199

Brake torque

280 Nm

Braking capability

Cyclic Dynamic, E-Stop, Holding

CE certified

CE

Enclosure

Open

Engagement method

Spring

Finish

Black oxide

Inlet size

0.125 BSPT

Length

118.0 mm

Materials of construction

Black oxide

Max allowable pressure (bar)

8.3

Max ambient temperature (°F)

150

Max brake continuous thermal dissipation

1.66 kW

Max Speed

1800 RPM

Max static brake torque

280 Nm

Min ambient temperature (°F)

32

Min release pressure (bar)

6.0

Mounting style

Shaft

Open or enclosed design

Open

Outer Diameter

229.0 mm

Output shaft style

None

Product features

Spring Engaged, Shaft Mount, Straight Bore

Release method

Air

Restrictions

Consult Nexen For Use In Cyclic Applications

RoHS compliant

RoHS

RPM

1800

Shaft inertia

335 kgcm²

Unit height

5.5 in

Unit width

10 in