80 Series End Mount Naval Service Duty, Non-Magnetic

NEMA Frame Sizes 282TC/UC and 286TC/UC
Torque Ratings: 25 to 180 lb-ft
Base Models: 81025-51, 81035-51, 82050-51, 83075-51, 83090-51, 84135-51, 85180-51

Enclosure Type:

Waterproof/Dust-tight Enclosure: NEMA 4X
Cast aluminum enclosure
Painting per MIL-E-917

Specifications:

Reaction Time: 20-25 milliseconds (release and set)
AK: 10.50” Register
AJ: 9.00” Bolt Circle
Maximum RPM: 2400
Conforms to MIL-B-16392 specifications
Nameplate: Engraved stainless steel

Design Features:

No disassembly required for mounting
Direct acting design with no linkages to break
Torque adjustable for specific applications
Deadman manual release
One moving part for longer life
Splined hub
Spring set, electrically released

Brake Model Number Definition

Voltages:

Standard AC Voltages (single and three phase)

Suffix | Voltage
Y1 | 110/220V, 50Hz (single phase only)
11 | 115/208-230V, 60Hz (single phase only)
R1 | 115/230V, 60Hz (single phase only)
T1 or T3 | 220/440V, 60Hz
51 or 53 | 208-230/460V, 60Hz
U1 or U3 | 230/460V, 60Hz or 190/380V, 50Hz
P1 or P3 | 575V, 60Hz

Special Voltages Available

Standard Hub Bore Sizes:

Suffix | Size | Keyway
H | 1-1/8″ | 1/4″ x 1/8″
K | 1-3/8″ | 5/16″ x 5/32″
M | 1-5/8″ | 3/8″ x 3/16″
N | 1-7/8″ | 1/2″ x 1/4″

Special Bore Sizes Available

Available Options:

Suffix | Description
A | Adapter to Next larger Frame Size
AB | Reverse Adapter
F | Foot Mounting Bracket
H | Heavy Duty Friction Disc(s)
R | Internal Space Heater
VO | Vertical Over Motor Mounting
VU | Vertical Under Motor Mounting
XS | Microswitch Warning

Downloads, Instructions & Parts Lists

Torque (lb-ft)	Model #	Weight (lbs)	Thermal Capacity (HPS/Min)	Inertia (lb-ft2)	"C"	"N"	"X"	"AC"
25	81025-51	55	15	0.084	7.56	1.50	1.00	1.50
35	81035-51	55	15	0.084	7.56	1.50	1.00	1.50
50	82050-51	60	17	0.158	8.19	2.13	1.50	2.13
75	83075-51	65	19	0.233	8.81	2.75	2.00	2.75
90	83090-51	65	19	0.233	8.81	2.75	2.00	2.75
135	84135-51	70	21	0.307	9.44	3.38	2.50	3.38
180	85180-51	75	21	0.384	10.06	3.94	3.13	4.00