SNL plummer block housings solve the housing problems

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1 Product information 2 Recommendations 3 Product dataPage ............. 3 Mounting Page ............. 44Mounting SNLhousings with taconitesealsBefore starting installation work, thefollowing instructions should be carefullyread.1. Ensure that the environment is clean.Check the dimensional and form accuracyof the shaft seating.2. Check that the surface roughnessof the support surface R a 12,5 µm.The flatness (planicity) toleranceshould be to IT7. For moderatedemands IT8 may be satisfactory.3. If the bearing is mounted on anadapter sleeve, determine the positionof the housing. The grease nipplearranged at one side of the housingcap (for improved lubrication) shouldalways be at the side opposite to thesleeve nut. It is necessary to considerthe complete housing as the base andcap will only fit together as supplied.4. Position the housing on the supportsurface. Fit the attachment bolts butdo not tighten them.5. Mount the first V-ring together withone labyrinth seal on the shaft in thecorrect position. The lip of the V-ringshould point towards the bearing.Place the split ring over the V-ring andlabyrinth ring and screw together. Thetwo parts of this split ring are not interchangeable.They should be checkedto see that they carry the same identification.6. Mount the bearing on the shaft –either directly on a stepped shaft orusing an adapter sleeve. Completelyfill the bearing with grease. The remainderof the recommended greasequantity should be put in the housingbase at the sides (➔ Table 7 ,page 28).7. Mount the second seal according topoint 5. If the housing is to be used ata shaft end, the second seal is omittedand an end cover inserted in the housingbase instead.8. Use the hollow O-section cord tofix the labyrinth ring in position on theshaft. A screwdriver can be used to fitthe cords whilst rotating the shaft. Mountthe O-ring on the seal outer diameter.9. Lay the shaft with bearing and sealsin the housing base taking care thatthe O-rings are not damaged.10. Put one locating ring (when needed)at each side of the bearing.NB. Locating rings are only used forlocating bearing arrangements, exceptfor CARB bearings which, althoughalways non-locating, must always bemounted with locating rings.11. Carefully align the housing base.Vertical markings at the middle of theside faces and ends of the housingbase can facilitate this. Then lightlytighten the attachment bolts.12. The housing cap should be placedover the base and the cap bolts (to joincap and base) tightened to the torquespecified in Table 12 on page 46.The cap and base of one housing arenot interchangeable with those of otherhousings. The cap and base shouldbe checked to see that they bear thesame identification.13. Fully tighten the attachment boltsin the housing base. Recommendedtightening torques are given inTable 12 on page 46.14. Finally, before the first test run,rotate the shaft and supply greasevia the nipple until it exudes from thelabyrinth rings. The same grease asthat used for the bearing should alsobe used to lubricate the labyrinth rings.42
1 Product information 2 Recommendations 3 Product dataPage ............. 3 Mounting Page ............. 4444GREASELGMT 26520001 S277651010S2700010001 S270001 S279 1112S27140001130001 S270001 S2743
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SNL plummer block housings solve the housing problems

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