Nexen 818861 spring engaged shaft mount brake with QD bore (0.5 in to 1.000 in, customer taper bushing required). Open design with black oxide finish. Rated 450 in-lb static torque, 1800 RPM max speed. Features high coefficient brake facing, 0.125 NPT inlet, and 90 psi min release pressure. Suitable for cyclic dynamic, e-stop, and holding applications.

Anti rotation style

Anti-Rotation Holes, Optional Torque Pin Bracket

Approximate brake facing life

115 hphr

Backlash

37 ArcMin, Additional 3 ArcMin With Housing Anti-Rotation Torque Pin Bracket 819900

Bore details

QD Type JA

Bore size

0.500 in to 1.000 in Customer Taper Bushing Required

Bore style

Customer Taper Bushing Required

Brake air chamber volume when new

2.100 in³

Brake air chamber volume when worn out

0.900 in³

Brake facing edge color code

Purple

Brake facing effective area

11.9 in²

Brake facing type

High Coefficient

Brake heat sink capacity

30000 ftlb

Brake peak thermal input rate

11.00 hp

Brake response factor

0.09

Brake torque

450 inlb

Braking capability

Cyclic Dynamic, E-Stop, Holding

CE certified

CE

Enclosure

Open

Engagement method

Spring

Finish

Black oxide

Inlet size

0.125 NPT

Length

3.75 in

Materials of construction

Black oxide

Max allowable pressure (psi)

120

Max ambient temperature (°F)

150

Max bore size

25.4 mm

Max brake continuous thermal dissipation

0.52 hp

Max Speed

1800 RPM

Max static brake torque

450 inlb

Min ambient temperature (°F)

32

Min bore size

12.7 mm

Min release pressure (bar)

6.2055 bar

Min release pressure (psi)

90

Mounting style

Shaft

Open or enclosed design

Open

Outer Diameter

5.94 in

Output shaft style

None

Product features

Spring Engaged, Shaft Mount, Taper Bore

Release method

Air

Restrictions

This Brake Should Not Be Flange Mounted Or May Be Damaged

RoHS compliant

RoHS

RPM

1800

Shaft inertia

4.74 lbin²

Unit height

7 in

Unit width

7 in