Technical data

March 2009
CA08102001E For more information visit: www.eaton.com
33-237
NEMA Contactors & Starters
33
Shoe Brakes — AC and DC Magnetic
511 Series
Table 33-353. Brake Wheels

Bore tolerance: +.000 -.001 inches.

Taper is at rate of 1.25 inches per foot on diameter. In bore size selection, use diameter of tapered shaft. Bore tolerance: +.000 -.005 inches.

Add Suffix Number for bore size to Base Catalog Number.
Table 33-354. Brake Wheel Suffix Numbers

Bore size selected must be between minimum and maximum dimensions listed in brake wheel selection table.

Price Additions
Wheel Size
in Inches
Min.
Bore in
Inches
(mm)
Max.
Bore in
Inches
(mm)
Pilot
Bore in
Inches
(mm)
WK
2
Straight Bore

Tapered Bore

Base

Catalog Number
Finished
Bore
Pilot
Bore Only
Base

Catalog Number
Finished
Bore
Pilot
Bore Only
Price
U.S. $
Price
U.S. $
Price
U.S. $
Price
U.S. $
4.0 .50 (12.7) 1.38 (35.1) .50 (12.7) .06 511H1150 511H1151
5.5 .75 (19.1) 2.00 (50.8) .75 (19.1) .26 511H1160 511H1161
7.0 1.00 (25.4) 2.25 (57.2) .75 (19.1) .77 511H1170 511H1171
Bore Size Suffix Number — Add to Base Catalog Number
Bore

in Inches (mm) Keyway in Inches Suffix Number Bore

in Inches (mm) Keyway in Inches (mm) Suffix Number
Standard Bore Sizes — No Price Addition
Pilot Bore
.625 (15.88)
.750 (19.05)
.875 (22.23)
None
3/16 x 3/32
3/16 x 3/32
3/16 x 3/32
-1
-2
-3
-4
1.625 (41.28)
1.875 (47.63)
2.125 (53.98)
2.375 (60.33)
3/38 x 3/16
1/2 x 1/4
1/2 x 1/4
5/8 x 5/16
-9
-10
-11
-12
1.000 (25.40)
1.125 (28.58)
1.250 (31.75)
1.375 (34.93)
1/4 x 1/8
1/4 x 1/8
1/4 x 1/8
5/16 x 5/32
-5
-6
-7
-8
2.500 (63.50)
2.625 (66.68)
2.750 (69.85)
2.875 (73.03)
5/8 x 5/16
5/8 x 5/16
5/8 x 5/16
3/4 x 3/8
-63
-13
-18
-14
Non-standard Bore Sizes — Make Necessary Price Addition

.500 (12.70)
.750 (19.05)
.875 (22.23)
1.000 (25.40)
1/8 x 1/16
1/4 x 1/8
1/4 x 1/8
5/16 x 5/32
-50
-51
-52
-53
1.687 (42.85)
1.750 (44.45)
1.937 (49.20)
2.000 (50.80)
3/8 x 3/16
3/8 x 3/16
1/2 x 1/4
1/2 x 1/4
-58
-59
-60
-61
1.187 (30.15)
1.375 (34.93)
1.437 (36.50)
1.500 (38.10)
1/4 x 1/8
3/8 x 3/16
3/8 x 3/16
3/8 x 3/16
-54
-55
-56
-57
2.250 (57.15)
—
—
—
1/2 x 1/4
—
—
—
-62
—
—
—
Description Adder
U.S. $
4.0 Inch (101.6 mm)
5.5 Inch (139.7 mm)
7.0 Inch (177.8 mm)
Discount Symbol . . . . . . . . . . . . . . . . . . . . . . . 1CD1C