Paired Single Row Tapered Roller Bearings (Back to Back)

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Design Variants

Cage

Tolerance

Internal clearance

Because tapered roller bearings can only bear unidirectional axial load, they are often used in pairs. DHK can provide paired single row tapered roller bearings on demand, face to face pairing (suffix DF), back to back pairing (suffix DB), and series (suffix DT) as shown below:

Because tapered roller bearings can only bear unidirectional axial load, they are often used in pairs. DHK can provide paired single row tapered roller bearings on demand, face to face pairing (suffix DF), back to back pairing (suffix DB), and series (suffix DT) as shown below:
DHK tapered roller bearing adopts pressed steel cage, cage is slightly protruding to the side, so its installation size must be considered.
The width tolerance of the paired bearing is determined by the clearance and △Ts.
The clearance of a single row tapered roller bearing is set by adjusting another set of bearings used with it during installation.
The axial clearance of DHK bearing pairs face to face and back to back is shown in the table below. DHK can be customized with axial clearance as required.

Dimensions and Parameters

Inquiry	Designation	Boundary dimensions（mm）			Load ratings[kN]		Fatigue load limit [kN]	Speed ratings[rpm]		Mass	Bearing dimensions			Abutment and fillet dimensions					Calculation factors
Inquiry	Designation	d	D	T	dyn Cr	stat Cor	pu	grease	Oil	kg	c	r1.2 min	r5 min	db max	Db min	Cb max	ra max	rc max	e	Y1	Y2	Yo
	30308T72DB	40	90	72	170	190	21.6	5300	8000	1.9	61.5	2	0.6	49	82	5	2	0.6	0.35	1.9	2.9	1.8
	30215T70DB	75	130	70	238	355	41.5	3000	5000	3.25	59.5	2	0.6	84	124	5	2	0.6	0.43	1.6	2.3	1.6
	32215T80DB	75	130	80	275	425	49	3000	5000	3.8	67.5	2	0.6	84	125	6	2	0.6	0.43	1.6	2.3	1.6
	32216T78DB	80	140	78	319	490	57	2800	4500	4.45	63.5	2.5	0.6	90	134	7	2	0.6	0.43	1.6	2.3	1.6
	32017T66XDB	85	130	66	238	450	51	2800	4800	2.7	52	1.5	0.6	92	125	7	1.5	0.6	0.44	1.5	2.3	1.4
	33017T70DB	85	130	70	308	620	69.5	2800	4800	3.5	56	1.5	0.6	92	125	7	1.5	0.6	0.44	1.5	2.3	1.4
	30217T71DB	85	150	71	303	440	51	2600	4300	4.1	58.5	2.5	0.6	95	141	6.5	2	0.6	0.43	1.6	2.3	1.6
	31318T103DB	90	190	103	457	630	73.5	1900	3400	12.5	70	4	1	105	179	16.5	3	1	0.83	0.81	1.2	0.8
	32220T108DB	100	180	108	539	880	96.5	2200	3600	10.5	88	3	1	112	171	10	2.5	1	0.43	1.6	2.3	1.6
	32220T140DB	100	180	140	539	880	96.5	2200	3600	12.5	120	3	1	112	171	10	2.5	1	0.43	1.6	2.3	1.6
	32022T84XDB	110	170	84	402	780	85	2200	3600	6.5	66	2.5	0.6	121	163	9	2	0.6	0.43	1.6	2.3	1.6
	32024T84XDB	120	180	84	418	830	88	2000	3400	7	66	2.5	0.6	131	173	9	2	0.6	0.46	1.5	2.2	1.4
	32224T146DB	120	215	146	792	1400	146	1800	3000	21	123	3	1	132	204	11.5	2.5	1	0.43	1.6	2.3	1.6
	31324T146DB	120	260	146	935	1400	146	1400	2400	35	134	4	1	135	244	26	3	1	0.93	0.81	1.2	0.9
	30226T97.5DB	130	230	97.5	627	980	106	1700	2800	15	70	4	1	145	217	9.5	3	1	0.43	1.6	2.3	1.6
	30326T142DB	130	280	142	1080	1600	166	1400	2400	36.5	112.5	5	1.5	150	255	14.5	4	1.5	0.35	1.9	2.9	1.8
	32028T130XDB	140	210	130	561	1160	116	1700	2800	12.7	108	2.5	0.6	152	202	11	2	0.6	0.46	1.5	2.2	1.4
	30228T106DB	140	250	106	721	1140	116	1500	2600	19.5	86.5	4	1	156	234	9.5	3	1	0.43	1.6	2.3	1.6
	32228T158DB	140	250	158	1100	2000	200	1500	2600	31	130.5	4	1	156	238	13.5	3	1	0.43	1.6	2.3	1.6
	32230T167DB	150	270	168	1250	2280	224	1400	2400	38	134	4	1	166	254	17	3	1	0.43	1.6	2.3	1.6
	32230T248DB	150	270	248	1250	2280	224	1400	2400	39.5	214	4	1	166	254	17	3	1	0.43	1.6	2.3	1.6
	31330T179XDB	150	320	179	1340	2040	200	1100	2000	58.5	115	5	1.5	170	300	32	4	1.5	0.83	0.81	1.2	0.8
	32232T179DB	160	290	179	1510	2800	265	1300	2200	52.5	145	4	1	176	274	17	3	1	0.43	1.6	2.3	1.6
	32034T162XDB	170	260	162	880	1830	180	1400	2200	30.5	134	3	1	184	249	14	2.5	1	0.44	1.5	2.3	1.6
	32936T135DB	180	250	135	605	1460	137	1400	2600	14.5	83	2.5	0.6	192	241	11	2	0.6	0.48	1.4	2.1	1.4
	32036T150DB	180	280	150	1100	2320	220	1300	2200	29.5	118	3	1	194	267	16	2.5	1	0.43	1.6	2.3	1.6
	32236T196DB	180	320	196	1720	3250	300	1100	1900	61.5	156	5	1.5	200	297	14	4	1.5	0.44	1.5	2.3	1.4
	32938T102DB	190	260	102	616	1530	143	1300	2400	15	80	2.5	0.6	202	251	11	2	0.6	0.48	1.4	2.1	1.4
	32938T122DB	190	260	122	616	1530	143	1300	2400	15.5	100	2.5	0.6	202	251	11	2	0.6	0.48	1.4	2.1	1.4
	32038T146X.DB	190	290	146	1120	2400	224	1200	2000	31.5	114	3	1	204	279	16	142	1	0.44	1.5	2.3	1.4
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