NTN Plummer blocks & self-aligning ball bearing with an adapter
1.NTN Plummer blocks
& self-aligning ball bearing with an adapter,thinly apply highly viscous mineral oil to the taper,threading and the chamfered face of the nut before press fitting.in particular ,apply molybdenum bisulfide paste to these areas on a large self aligning ball bearings,this prevents scuffing, and allows easy self aligning ball bearing removal, before the installation work, remove oil from the shaft and the bore face of sleeve with a clean factory cloth.
2.Mount the adapter to a correct position considering the dimension in the bearing data, when fitting the adapter sleeve onto the shaft, open the slit with a flat blade
screwdriver for easy fitting.
3.fit the bearing over the adapter sleeve on the shaft as tight as possible, so that the self aligning ball bearing inner ring is fully seated onto the taper on adapter sleeve.
4.lightly tighten the nut until the sleeve is seated on the shaft.
5.When fully tightening a self aligning ball bearing, make sure that its radial clearance becomes approximatly 1/2 that before fitting, for a NTN Self aligning ball bearing,tighten the nut while meansuring its radial clearance with a thickness gage so that the reduction of radial internal clearance value is reached,make sure
that an installed self aligning ball bearing can turn smoothly by hand.
6.to tighten the nut,use a spanner wrench illustrated,when tightening the nut with a hammer and a drift , be sure that the chip from the drift does not enter
the NTN self aligning ball bearing.
7.if it is difficult to tighten a large self aligning ball bearing by manual force,use a hydraulic nut or ram for easier assembly.
8.Make sure the NTN Self aligning ball bearing clearance is as specified,then bend one tab on the washer that corresponds with the cutout on the circumference of the nut to maintain the adjustment . do not loosen the nut to allow the cutout to match the tab.
9.when a large self aligning ball bearing is installed to a shaft,its outer ring will be reformed by its own weight into an elliptical form,the clearance measurement at the lowest point on a deformed bearing will be greater than a true clearance,remember that a radial clearance value measurement at this point will result in excessively large tightening allowance.
10.the adapter used on a large NTN self aligning ball bearing whose bore number is 44 or greater is a lock plate type,for this arrangement,first tighten the nut, then fit the lock plate into the cutout on the nut, in this case too,donot loosen the nut to allow the cutout to match the lock plate, once the lock plate is seated
in the cutout ,secure the adjustment with a spring washer and a hexagonal nut.
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& factory & exporter & supplier ,it can supply NTN Plummer blocks & self-aligning ball bearing with an adapter,
Our large quantity NTN Plummer blocks & self-aligning ball bearing with an adapter Stock can meet your need with lowest price and fast delivery
We accepted DHL,FEDEX,TNT express for small order and samples order,also the transportation By AIR or By Sea,by Train are all available.we are sure we can ship NTN Plummer blocks & self-aligning ball bearing with an adapter to your office at the first time.