Nexen 827804 is an air engaged shaft mount brake with a 25 mm straight machined bore with keyway. It delivers 77 Nm of static brake torque and operates at speeds up to 1800 RPM. The open design features a black oxide finish and a high coefficient brake facing. This brake is suitable for cyclic dynamic, e-stop, and holding applications.

Anti rotation style

Flange, Optional Torque Pin Bracket

Approximate brake facing life

87 kWhr

Approximate engagement response time

70 ms

Bore details

Straight

Bore size

25 mm, Machined Bore with Keyway

Bore style

Machined Bore with Keyway

Brake air chamber volume when new

10.310 cm³

Brake air chamber volume when worn out

23.300 cm³

Brake facing edge color code

Purple

Brake facing effective area

77 cm²

Brake facing type

High Coefficient

Brake heat sink capacity

41000 Joule

Brake peak thermal input rate

8.20 kW

Brake response factor

0.09

Brake torque

77 Nm

Braking capability

Cyclic Dynamic, E-Stop, Holding

CE certified

CE

Enclosure

Open

Engagement method

Air

Finish

Black oxide

Inlet size

0.250 BSPT

Input keyway

8W x 7H x 63.5L mm

Input shaft securement

3, M6 x 1.0 , Set Screws @ 120°

Length

63.6 mm

Materials of construction

Black oxide

Max allowable pressure (bar)

8.3

Max ambient temperature (°C)

66

Max brake continuous thermal dissipation

0.38 kW

Max operating pressure (bar)

6.0

Max Speed

1800 RPM

Max static brake torque

77 Nm

Min ambient temperature (°C)

0

Min engagement pressure (bar)

0.2

Mounting style

Flange, Shaft

Open or enclosed design

Open

Outer Diameter

150.9 mm

Output shaft style

None

Product features

Air Engaged, Metric, Shaft Mount, Straight Bore

Release method

Spring

RoHS compliant

RoHS

RPM

1800

Shaft inertia

14 kgcm²

Unit height

4.75 in

Unit width

7 in