TABLE 13
Wear Limits for WCB2 Components (Ref. Figs. 1 & 2 and Section 4.0)
Item
Description
Wear Limit
Remarks
#3
Wear Plate
Friction Wear
Surface
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 Figure 6.
Friction material must also be
replaced if contaminated with
oil or grease.
Brakes 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 a notch or
step on the side of the 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 radial wear is
0.005" (0.13 mm).
Wear will be in the form of grooves
where the seals contact the cylinder wall.
#34 Spring
Spring Free Height
Minimum 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" (127,0)
4.85" (123,19)
WCB 11070 VP 4.2 Format
27
© Copyright Eaton Corp., 2003. All rights reserved
April 2002 (Revised June 2003)