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HEB250 Brake
MI 850A346 1 B
Page 4
Table 1.
Part number codes for bore diameter and rotor set screw tightening torques
(Highlighted Bores are Standard)
Part Code
Bore Diameter
Bore
Units
Keyway
Keyway
Units
Set Screws
Set Screw Torque
Nm [lb-in]
43
3/4
0.7500
inch
3/16 x 3/16
inch
1/4-20 UNC
10 [90]
44
13/16
0.8125
inch
3/16 x 3/16
inch
45
7/8
0.8750
inch
3/16 x 3/16
inch
46
15/16
0.9375
inch
1/4 x 1/4
inch
5/16-18 UNC
19 [170]
47
1
1.0000
inch
1/4 x 1/4
inch
48
1-1/16
1.0625
inch
1/4 x 1/4
inch
49
1-1/8
1.1250
inch
1/4 x 1/4
inch
50
1-3/16
1.1875
inch
1/4 x 1/4
inch
51
1-1/4
1.2500
inch
1/4 x 1/4
inch
52
1-5/16
1.3125
inch
5/16 x 5/16
inch
3/8-16 UNC
34 [300]
53
1-3/8
1.3750
inch
5/16 x 5/16
inch
54
1-7/16
1.4375
inch
3/8 x 3/8
inch
55
1-1/2
1.5000
inch
3/8 x 3/8
inch
56
1-9/16
1.5625
inch
3/8 x 3/8
inch
57
1-5/8
1.6250
inch
3/8 x 3/8
inch
58
1-1/16
1.6875
inch
3/8 x 3/8
inch
59
1-3/4
1.7500
inch
3/8 x 3/8
inch
3/8-16 UNC
34 [300]
60
1-13/16
1.8125
inch
1/2 x 1/2
inch
1/2-13 UNC
70 [625]
61
1-7/8
1.8750
inch
1/2 x 1/2
inch
62
1-15/16
1.9375
inch
1/2 x 1/2
inch
63
2
2.0000
inch
1/2 x 1/2
inch
64
2-1/16
2.0625
inch
1/2 x 1/2
inch
65
2-1/8
2.1250
inch
1/2 x 1/2
inch
66
2-3/16
2.1875
inch
1/2 x 1/2
inch
67
2-1/4
2.2500
inch
1/2 x 1/2
inch
68
2-5/16
2.3125
inch
5/8 x 5/8
inch
Serial Number Key:
Serial number consists of a date code followed by a sequence number. Date is formatted as 2 digits for month, then 2
digits for day, then 2 digits for year followed by a 3-digit number sequence starting at 001 each day.
Example serial number:
021312002 - This brake was produced on Feb. 13, 2012 and it was the second brake made that day.
Available Models:
All combinations of options are available except a proximity sensor without a fan.
A fan shroud is used to mount the fan and the connections for the proximity sensor. Models without a fan or proximity
sensor do not have a fan shroud.
For models with a proximity sensor one of the calipers is used to mount the sensor, so the maximum number of calipers
with pads is 5.