DISASSEMBLY / ASSEMBLY OF BEARING CARRIER
Bearing Carrier for MD2-B Couplings
Bearing Carrier
HousingInternal
Retaining Ring
Set Screw
Outer Magnet
Spacer
Ball Bearings | |
Hub |
“A”
External
Retaining Rings
FIGURE 13
and bearing Carrier
Bearing Carrier for MD2-C Couplings
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| Bearing Carrier |
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| Retaining | Housing |
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| End Cap and |
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| Outer |
| Setscrew |
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| Set | Inner Key | Magnet | |
Lockwasher |
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and Locknut | Spacer | Screw |
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Tapered |
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Roller | |
Bearing, | Hub |
(Outer) |
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Tapered Roller | Lipseal |
Bearing, (Inner) | “A” |
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FIGURE 14
DISASSEMBLY
The bearing carrier for an MD2 B coupling features two sealed ball bearings along with the outer magnet assembly. If further disassembly of this unit is required, reference Figure
7 on page 6 and Figure 13 then proceed as follows:
1.Remove the internal retaining ring. Using a press, press the shaft out of the housing.
2.Remove the external retaining rings from shaft. Place the unit into the press and push out shaft out of the bearings.
ASSEMBLY
1.Place some Loctite® on the O.D. of the first bearing and press into the housing bore. Position the bearing spacer in the bore and insert the second bearing. Center the bearing spacer then press in the shaft with one external retaining ring on shaft. Press down until the ring contacts the bearing race, then install the second ring. Install the internal retaining ring into the bearing housing.
2.Slide the outer magnet assembly onto the pump shaft. Locate the outer magnet per dimension “A” listed below then tighten the two setscrews.
“B” Coupling Outer Magnet
Location Dimension*
Pump Design | “A” Dim. |
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U.S. Inch Design | 8.49 inches |
Metric Design | 196.4 mm |
DISASSEMBLY
The bearing carrier for the MD2 C coupling features two tapered roller bearings secured by a threaded end cap. The unit is greased externally using the grease fitting. If further disassembly is required, reference Figure 8 on page 7 and Figure 14, then proceed as follows:
1.Remove the two setscrews from the
2.Place the inboard side of the shaft in a vise with padded jaws. Bend the lockwasher tab up and gently tap the locknut in a counterclockwise direction. Remove the locknut and lockwasher.
3.Loosen the two setscrews retaining the end cap. Back out the end cap completely. Pull or gently tap the shaft out the back of the bearing housing. Be sure to keep the cup and cone of the outer bearing together. If either the cup or cone requires replacing, it is recommended to replace as a set. The inner cone will probably stay in the housing unless it is to be replaced.
4.One lip seal is pressed into the end cap and the other is pressed into the bearing housing. Do not remove the lipseals unless they require replacement. If removed, pay close attention to the orientation as shown in Figure 14 when installing the new lip seals.
*Dimensions are not the same between designs
Loctite® is a trademark of Henkel Consumer Adhesives, Inc.
SECTION TSM 685.2 ISSUE C | PAGE OF 16 |
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