ZWRZ roller bearing Tapered roller bearing 32907

1.Tapered roller bearing are applicable for heavy load and impact load. 2.Mainly for auto fore wheel,rear wheel,transmission .

Tapered roller bearing is designed in such a way that cone paexes of inner ring raceway,outer ring raceway and roller raceway intesects at one point of its central line.Beside metric series products,there are inch series products,which are applicable for heavy load and impact load.

1,Single row tapered roller bearing

It can bear simultaneously radial load and single row axial load.

When carrying radial load,it creates axial thrust load.Thus two bearings are configured (or combined)face to face or back to back.

According to contact angle difference,it is classified into three types:small come angle, medium cone angle and big cone angle.

2,Double row tapered roller bearing

It is classifide into two types:capped and open.

The former equips two raceway outer rings and two single raceway inner rings.The latter equips two raceway outer rings and one double raceway inner ring.Both of them can bear radial load and double row axial load.In order to make bearing having required internal clearance after eing installed,its inner/outer spacer are thinned preciously.

3,Four row tapered roller bearing

Four row tapered roller bearing is composed of two double row inner rings and one double row outer ring consisting two single outer rings.Between two inner rings,there is one inner spacer.Among these three outer rings, two central spacer is furnished,which can be used to adjust clearance. When borne by heavy radial load, it can bear simultaneously acial load in two different directions.But its allowed speed is not much,which is mainly used for roller bearing of rolling mill.In recent years,fout row tapered roller bearing with double face seal is manufactured and gradually used in diferent industries.

Small sized bearing of this kind is generally made by bearing steel.For large sized one, its is made by carburizing steel.For extremely large sized one,it is made consisting hollow roller and support cage to elongate its sercice life.

4,Tolerance and clearance

Its tolerance is P0 generally.Bearing with much more high level tolerance can be tailored according to client's manufacturing.During assembly,its clearance shall be adjusted according to adjustment specification and bearing manufacturing agreement(or standard clearance if there is no manufacturing agreement).After operating a certain period,client can readjust clearance.

No	d(mm)	D(mm)	B(mm)	No.	d(mm)	D(mm)	B(mm)
32907	35	55	14	32928	140	190	32.5
32910	50	72	15	32930	150	210	38.5
32912	60	85	17.3	32932	160	220	38.5
32913	65	90	17	32934	170	230	38.5
32914	70	100	20.3	32936	180	250	45
32915	75	105	20	32938	190	260	45.5
32916	80	110	20	32940	200	280	51.5
32917	85	120	23.4	32944	220	300	51.5
32918	90	125	23.4	32948	240	320	52.5
32919	95	130	23	32952	260	360	64.5
32920	100	140	25	32956	280	380	63.5
32922	110	150	25.4	32960	300	420	76.5
32924	120	165	29	32964	320	440	76.5
32926	130	180	32.5	32972	360	480	76.5

ZWRZ roller bearing Tapered roller bearing 32907