Dodge USN 500 Series Manual de instrucciones - Página 2
Navegue en línea o descargue pdf Manual de instrucciones para Equipamiento industrial Dodge USN 500 Series. Dodge USN 500 Series 16 páginas. Adapter mount and direct mount plummer blocks
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INSTALLATION
USN 500 & 600 Series Adapter Mount
1.
Apply a coating of light oil or other rust inhibitor to the adapter
area of the shaft.
2.
Measure the internal clearance of the bearing before
mounting. Place the bearing in an upright position as shown
in Figure 1. Seat the inner ring and roller elements by pressing
down firmly on the inner ring bore while rotating the inner ring
a few times. Position the roller assemblies so that a roller is
at the top most position on either side. For bore sizes above
135 mm only, press these top rollers inward ensuring contact
with the center guide ring. Using a feeler gauge measure the
clearance for each side by inserting as far as possible and
sliding over top of roller (Figure 1). Write down the measured
clearance for use in Step 3e.
Note: Do not rotate bearing when moving feeler between
roller and outer ring.
3.
Install the bearing parts in the following sequence. (Refer to
parts drawing)
a.
V-ring Seal—Slide one of the V-ring seals onto the shaft,
making sure lip is toward the bearing.
Note: Do not install V-ring seal on seal ring until
housing cap has been set in place and tightened.
b.
Seal Ring—Install a seal ring on shaft with largest O.D.
toward bearing.
c.
Adapter Sleeve—Slide adapter sleeve onto the shaft,
threaded end outboard to the approximate location of the
bearing. Apply light coating of oil to sleeve O.D. Do Not
Use Grease.
d.
Bearing—Make sure that the internal clearance has
been written down. Install bearing on adapter sleeve,
large end of tapered bore first. Locate bearing in proper
position on shaft.
Figure 1 - Internal Clearance
e.
Lockwasher and Locknut—Install the lockwasher on
the adapter sleeve with inner prong located in the slot
of the sleeve and pointing towards the bearing. Install
locknut, chamfered face toward bearing as
Tighten locknut using a spanner wrench and hammer
until clearance noted in Step 2 is reduced by amount
shown in Table 1. During this step shaft should be
supported so all weight is off the bearing.
Table 1 - Adapter Mount Bearings Only
Shaft Diameter, (mm)
35, 40
45, 50
55, 60, 65
70, 75, 80
85, 90, 100
110, 115, 120
125, 130, 135, 140
* Amount of clearance to be removed from clearance measured in Step 2.
Reduction in Internal Clearance* (mm)
.020 - .025
.025 - .030
.030 - .038
.038 - .051
.046 - .064
.051 - .066
.064 - .089
Now find a lockwasher tab that aligns with a locknut slot and
bend tab into slot. If slot is past tab then tighten, not loosen,
locknut to meet a washer tab.
Steps f and g are not necessary if pillow block housing is a cast
closed end style.
f.
Seal Ring—Install second seal ring with large O.D.
toward locknut.
g.
V-ring Seal—Slide second V-ring seal onto the shaft,
making certain lip is toward bearing. Do not install V-ring
seal on seal ring until housing cap has been set in place
and tightened. For assistance in installing seals, use
instructions supplied with the seals.
4.
Remove any paint, dirt or burrs from the mating surfaces of
the housing halves. Thoroughly clean seal grooves on both
sides. Set lower half of housing on base and apply oil to the
bearing seats.
5.
Apply grease to the bearing and seal rings. The lubricant
should be smeared between the rolling elements (see Grease
Lubrication section). This step and the first sentence of Step
9 do not apply for oil-lubricated bearings.
6.
Place shaft with bearing into lower half while carefully guiding
the seal rings into the housing grooves.
7.
Bolt lower half of the non-expansion bearing to the base.
Move shaft endwise so that spacer ring can be inserted as
shown on Figure 4. Center all other bearings on same shaft in
their housing seats. Note: Only one bearing per shaft is non-
expansion, other bearings should be expansion.
8.
When closed end is required and the block is not a cast
closed, an optional end plug may be fit into the center seal
ring groove of the housing. Shaft extension should not be
beyond adapter end to ensure no rubbing with end plug or
housing on cast closed end.
9.
Grease the bearing seal grooves in the housing cap and place
over the bearing after wiping the mating surfaces (does not
apply for oil-lubricated bearings). The two dowel pins will align
the cap with the lower housing half. Note: Each cap must
be matched with its mating lower half, as these parts are not
interchangeable. Cap and base have serial number stamped
at joint. The serial numbers should line up for proper match. If
the blocks are mounted other than in the horizontal position, a
sealer must be applied at the cap and base mating surfaces.
10. Tighten cap bolts to the recommended torque shown on
Table 2.
11. Assure that there is running clearance at seal rings, then
install V-ring onto the seal rings as shown on Figure 4. Coat
V-ring seal with grease to protect against ozone attack.
12. Misalignment of plummer blocks must not exceed ±1/2º (one-
half degree).
Table 2 - Recommended Torque Value
Bolt Size, mm
10
Grade 8.8
47-51
Stainless Steel
24
A2/A4 Class 70
2
12
16
20
81-89
203-215
415-420
40
110
170
24
720-725
–
MN3066