Product Details

Product Description

32318 original ntn japan brand tapered roller bearings 32318

A part of our products:

Pictures show

Related models and specifications

Bearing No.	Boundary dimensions							Basic load rating(kN)		Limiting speed		Mass
	mm							Dynamic	Static	rpm		Kg
	d	D	T	B	C	Rmin	rmin	Cr	Cor	Grease	Oil	≈
32303	17	47	20.25	19	16	1	1	35.4	36.6	8000	11000	0.174
32304	20	52	22.25	21	18	1.5	1.5	42.7	46.4	7500	10000	0.231
32305	25	62	25.25	24	20	1.5	1.5	61.7	68.9	6000	8000	0.367
32306	30	72	28.75	27	23	1.5	1.5	81.7	97.6	5300	7000	0.56
32307	35	80	32.75	31	25	2	1.5	99.1	119	4800	6300	0.77
32308	40	90	35.25	33	27	2	1.5	115	149	4000	5300	1.05
32309	45	100	38.25	36	30	2	1.5	145	191	3600	4800	1.4
32310	50	110	42.25	40	33	2.5	2	177	239	3200	4300	1.89
32311	55	120	45.5	43	35	2.5	2	203	274	3000	4000	2.37
32312	60	130	48.5	46	37	3	2.5	226	306	2600	3600	2.9
32313	65	140	51	48	39	3	2.5	259	353	2400	3400	3.51
32314	70	150	54	51	42	3	2.5	298	413	2000	3000	4.35
32315	75	160	58	55	45	3	2.5	346	488	2000	3000	5.34
32316	80	170	61.5	58	48	3	2.5	387	549	1900	2800	6.38
32317	85	180	63.5	60	49	4	3	421	599	1800	2600	7.3
32318	90	190	67.5	64	53	4	3	477	690	1700	2400	8.78
32319	95	200	71.5	67	55	4	3	515	745	1700	2400	10.7
32320	100	215	77.5	73	60	4	3	572	780	1600	2200	3
32321	105	225	81.5	77	63	4	3	646	955	1500	2000	14.5
32322	110	240	84.5	80	65	4	3	722	1070	1400	1900	17.8
32324	120	260	90.5	86	69	4	3	824	1240	1300	1800	21.7
32334	170	360	128	120	100	3.7	1.3	1300	1760	850	1100	59.5

Description and application

Tapered roller bearing can be separated. It is a component , composed of inner ring , outer ring , rollers and cage . It can be installed separately. The contact line corrected for contact between the roller and the raceway reduces stress concentration. It can stand large radial loads and axial loads. As the tapered roller bearings can only send one-way axial load, it need another tapered roller bearing with a symmetrical mounting to send in the opposite direction of axial load.

Single row tapered roller bearing has an outer ring. Inner ring and a group of tapered roller are encased in a basket-shaped cage into an inner ring assembly. The outer ring can be separated from the inner ring assembly. According to the ISO standard of tapered roller bearing outer dimension specification, any standard type of inner and outer rings can be able to achieve international exchange with the outer ring or inner ring of the same models. Scilicet, in addition to the external dimensions, tolerances of outer ring in the same modles should comply with the regulations of ISO492GB307,the cone angle of the inner component and the diameter of component cone must also meet the relevant provisions of the swap.

Usually the cone Angle of outer ring raceway on single row tapered roller bearing is between 10°~19°,it can simultaneously stand the combined effect of bearing load and radial load. The greater the Angle,the more axial load can be bear. Big cone Angle bearings,end number to add B means the cone angle between 25 ° ~ 29 °. It can can withstand a large axial load. In addition, the single row taper roller bearings can adjust the clearance in the process of the device's size.

The inner or outer ring of double row taper roller bearing is a whole. The small end of two inner (or outer) rings are similar. There is a spacer between two rings. The clearance is adjusted by the thickness of the spacer. The spacer can also be used to adjust the pre-surplus of double row tapered roller bearings.

35000 double row tapered roller bearings have a variety of internal structure:

-- with a spacer and a steel plate punched window-type cage

-- with a spacer , hollow roller and pillar steel cage

37000-type structure of double row tapered roller bearings have a variety of internal structure:

-- with a spacer, cage and steel plate.

-- with a spacer, hollow roller and steel pillar type cage.

Application

Tapered roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastics machinery and other industries.

Single row taper roller is the most be used of the taper roller bearing series. The small sizes Double row taper roller are used in the car wheel hub in the recently years. Four-row taper roller bearings were used in large cold, hot rolling mill, and other heavy machinery.

Double row tapered roller bearings are mainly used for gear boxes, lifting equipment, rolling mills and for mining machinery, such as tunnel boring machine.