Warner Electric ATT Tension Brakes - Manual (Page 9)

Electric Brakes and Clutches
ATT Series – Advanced Technology Brakes and Clutches
9 Warner Electric • 800-825-9050 P-221 • 819-0338
Model Unit Bore Key
ATTB-25
.5025 12.76
1/8 Sq.
.5005 12.71
ATTB-25
.6275 15.94
3/16 Sq.
.6255 15.89
ATTB-25 .7525 19.11
3/16 Sq.
ATTB-55 .7505 19.06
ATTB-25 .8775 22.29
3/16 Sq.
ATTB-55 .8755 22.24
Model Unit Bore Key
ATTB-55 1.0025 25.46 1/4 Sq.
1.0005 25.41
ATTB-55 1.1275 28.64 1/4 Sq.
ATTB-115 1.1255 28.59
ATTB-115 1.2525 31.81 1/4 Sq.
1.2505 31.76
ATTB-115 1.7775 34.99 5/16 Sq.
1.3755 34.94
ATTB-115 1.5025 38.16 3/8 Sq.
1.5005 38.11
D E F G H J L M P
Pilot
Model Max. Nom. Max. Dia. Dia. Nom. Max. Nom. Max.
ATTB-25
1.347 4.748 3.767 5.250 5.625/5.623 1.544 .225 3.586 2.080
(34.21) (120.60) (95.68) (133.35) (142.87/142.82) (39.22) (5.71) (91.08) (52.83)
ATTB-55
1.770 5.37 3.767 6.875 7.373/7.375 1.544 .491 4.208 3.105
(44.96) (136.40) (95.68) (174.62) (187.27/187.33) (39.22) (12.47) (106.88) (78.87)
ATTB-115
2.152 6.278 3.767 8.500 9.000/8.998 1.544 .463 5.116 3.105
(54.66) (159.46) (95.68) (215.90) (228.60/228.55) (39.22) (11.76) (129.95) (78.87)
Customer shall maintain:
1. Squareness of brake mounting face with
armature hub shaft within .006 T.I.R.
( )
( )
( )
( )
Shaft Bore and
Keyway Dimensions
( ) denotes millimeters
A B C
Max. Min.
Model Dia. Max. Dia.
ATTB-25
4.822 2.730 .264
(122.48) (69.34) (6.70)
ATTB-55
6.271 3.010 .330
(159.28) (77.97) (8.38)
ATTB-115
7.906 3.625 .330
(200.81) (12.07) (8.38)
For replacement parts list and exploded view drawing, see page 10.
2. Concentricity of brake mounting pilot diameter
with armature hub shaft within .010 T.I.R.
D