WCB11070 (PDF FORMAT)
25
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Copyright Eaton Corp. 2007, All Rights reserved.
TABLE 13
Wear Limits for WCB2 Components (Ref. Figs. 1 & 2 and Section 4.0)
Item
Discription
Wear Limit
Remarks
#3
Wear Plate
Friction Wear
Signature
Maximum Wear is :
8, 14, 18 WCB2 - 0.030”
24 WCB2 - 0.045”
36 WCB2 - 0.050”
48 WCB2 - 0.060”
Wear will be in form of even wear or
circular grooves in the copper surface.
#8
Friction Disc
Friction Material
Fully Worn at bottom of
dust groove, or step on
O.D. for size 48”. See Fig-
ure 6. Friction Material
must also be replaced if
contaminated with oil or
greese.
Brake have adjustment provision.
See Section 4.2.
#9, #28
Friction Disc Core &
Gear
Gear Backlash
Maximum total backlash is
0.060” (1.5 mm).
If step is worn in gear, gear must be
replaced.
#12
Clamp Tube
Reaction Area
Maximum wear is 0.015”
(0.38 mm).
Wear will be in the form of notch or
step on the side of tube.
#13, #30, #54
Reaction Holes
Maximum wear is 0.031”
(0.80 mm).
Wear will be in the form of elongation
of the holes. Original hole diameters
are shown on the table below.
#19
Cylinder
Seal Area
Maximum wear is 0.005”
(0.13 mm).
Wear will be in form of grooves where
the seals contact the cylinder wall.
#34 Spring
Spring Free Height
Maximum free height
shown on the table below
Original free height shown on the
table below. Springs must be replaced
in complete sets.
Reaction hole size (NEW) and Spring Free Height Limit
Size
Original Reaction Hole
Sizes (#14, #31 & 54)
inches (mm)
Spring (#34) Free Height
Original inches (mm)
Minimum inches (mm)
8WCB2
0.938” (23,83)
2.14” (54,36)
2.07” (52,58)
14WCB2
1.312” (33,33)
3.16” (80,26)
3.06” (77,72)
18WCB2
1.312” (33,33
3.16” (80,26)
3.06” (77,72)
24WCB2
1.668” (42,88)
4.000” (101,6)
3.88” (98,55)
36WCB2
2.065” (52,45)
4.000” (101,6)
3.88” (98,55)
48WCB2
2.375” (60,33)
5.000” (127,6)
4.85” (123,19)
