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Single Row Tapered Roller Bearings (Metric Series)

Products And Drawings

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Design Variants

Cage

Tolerance

Internal clearance

Additional the standard metric single row taper roller bearings listed in the bearing table, DHK also produced single row taper roller bearings with flanges on outer rings (suffix R), only outer rings of taper roller bearing (prefix L), inner rings with the cage and rollers (prefix R) and other special taper roller bearings according to customer

Due to the single row taper roller bearings only can accommodate one direction axial force, these bearings are frequently used as pairs. Upon request, DHK can provide these bearings at Face- to-Face arrangement (suffix DF), Back-to-Back arrangement (suffix DB) or in tandem arrangement (suffix DT), as shown in the below sketch.

图片1.png

Additional the standard metric single row taper roller bearings listed in the bearing table, DHK also produced single row taper roller bearings with flanges on outer rings (suffix R), only outer rings of taper roller bearing (prefix L), inner rings with the cage and rollers (prefix R) and other special taper roller bearings according to customer
Due to the single row taper roller bearings only can accommodate one direction axial force, these bearings are frequently used as pairs. Upon request, DHK can provide these bearings at Face- to-Face arrangement (suffix DF), Back-to-Back arrangement (suffix DB) or in tandem arrangement (suffix DT), as shown in the below sketch.
DHK taper roller bearings are fitted with pressed steel cages as standard. Because the cages of taper roller bearings usually protrude beyond the bearing faces, special care must be taken to follow the recommended abutment dimensions.

DHK single row taper roller bearings are produced to normal tolerance class (PN) as standard.

These bearings also may be produced with closer tolerance such as P6X on request.

Detail tolerance values are listed in the chapter of tolerance of metric taper roller bearings, page 14. The width tolerance of paired bearings is decided by the clearance and Ts.

Tolerances for DHK metric taper roller bearings (excluding tapered roller bearings)

All dimensions shown in (mm):

Tolerances in (um):

Inner Ring

Tolerance class PN/(Normal)

Nominal bore diameter		Deviation	Variation	Variation	Ring width deviation	Radial runout	Ring width deviation
<=	<=	△dmp	Vdp	Vdmp	△Bs	Kia	△Ts	△T1s	△T2s
10 18		0 -12	12	9	0 -120	15	+2000	+1000	+1000
18 30		0 -12	12	9	0 -120	18	+2000	+1000	+1000
30 50		0 -12	12	9	0 -120	20	+2000	+1000	+1000
50 80		0 -15	15	11	0 -150	25	+2000	+1000	+1000
80 120		0 -20	20	15	0 -200	30	+200 -200	+100 -100	+100 -100
120 180		0 -25	25	19	0 -250	35	+350 -250	+150 -150	+200 -100
180 250		0 -30	30	23	0 -300	50	+350 -250	+150 -150	+200 -100
250 315		0 -35	35	26	0 -350	60	+350 -250	+150 -150	+200 -100
315 400		0 -40	40	30	0 -400	70	+400 -400	+200 -200	+200 -200
400 500		0 -45	45	34	0 -450	85	+400 -400
500 630		0 -50	50	38	0 -500	100	+500 -500
630 800		0 -75	75	56	0 -750	120	+600 -600
800 1000		0 -100	100	75	0 -1000	120	+750 -750
1000 1250		0 -1250			0 -1250	120	+1000 -1000
1250 1600		0 -160			0 -1600	120	+1500 -1500
1600 2000		0 -200			0 -2000	120	+1500 -1500

Outer Ring

Tolerance class PN/(Normal)

Nominal outer diameter		Deviation	Variation	Variation	Radial runout
<=	<=	△Dmp	VDp	VDmp	Kia
18 30		0 -12	12	9	18
30 50		0 -14	14	11	20
50 80		0 -16	16	12	25
80 120		0 -18	18	14	35
120 150		0 -20	20	15	40
150 180		0 -25	25	19	45
180 250		0 -30	30	23	50
250 315		0 -35	35	26	60
315 400		0 -40	40	30	70
400 500		0 -45	45	34	80
500 630		0 -50	50	38	100
630 800		0 -70	70	55	120
800 1000		0 -100	100	75	120
1000 1250		0 -125	125	94	120
1250 1600		0 -160	160	120	120
1600 2000		0 -200			120
2000 2500		0 -250

Tolerances for DHK metric taper roller bearings (excluding tapered roller bearings)

All dimensions shown in (mm):

Tolerances in (um):

Inner Ring

Tolerance class P6X

Nominal bore diameter		Deviation	Variation	Variation	Ring width deviation	Radial runout	Ring width deviation
<=	<=	△dmp	Vdp	Vdmp	△Bs	Kia	△Ts	△T1s	△T2s
10 18		0 -12	12	9	0 -50	15	+100 0	+50～0	+50～0
18 30		0 -12	12	9	0 -50	18	+100 0	+50～0	+50～0
30 50		0 -12	12	9	0 -50	20	+100 0	+50～0	+50～0
50 80		0 -15	15	11	0 -50	25	+100 0	+50～0	+50～0
80 120		0 -20	20	15	0 -50	30	+100 0	+50～0	+50～0
120 180		0 -25	25	19	0 -50	35	+150 0	+50～0	+100～0
180 250		0 -30	30	23	0 -50	50	+150 0	+50～0	+100～0
250 315		0 -35	35	26	0 -50	60	+200 0	+100～0	+100～0
315 400		0 -40	40	30	0 -50	70	+200 0	+100～0	+100～0
400 500
500 630
630 800
800 1000

Outer Ring

Tolerance class P6X

Nominal outer diameter		Deviation	Variation	Variation	Ring width deviation	Radial runout
<=	<=	△Dmp	VDp	VDmp	△Cs	Kea
18 30		0 -12	12	9	0 -100	18
30 50		0 -14	14	11	0 -100	20
50 80		0 -16	16	12	0 -100	25
80 120		0 -18	18	14	0 -100	35
120 150		0 -20	20	15	0 -100	40
150 180		0 -25	25	19	0 -100	45
180 250		0 -30	30	23	0 -100	50
250 315		0 -35	35	26	0 -100	60
315 400		0 -40	40	30	0 -100	70
400 500		0 -45	45	34	0 -100	80
500 630		0 -50	50	38	0 -100	100
630 800
800 1000

The width tolerance △Cs is identical to△Bs of inner ring of the same bearing

Tolerances for DHK metric taper roller bearings (excluding tapered roller bearings)

All dimensions shown in (mm):

Tolerances in (um):

Inner Ring

Tolerance class P5

Nominal bore diameter		Deviation	Variation	Variation	Ring width deviation	Radial runout	Side face runout
<=	<=	△dmp	Vdp	Vdmp	△Bs	Kia	Ｓd	△Ts
10 18		0 -7	5	5	0 -200	5	7	+200 -200
18 30		0 -8	6	5	0 -200	5	8	+200 -200
30 50		0 -10	8	5	0 -240	6	8	+200 -200
50 80		0 -12	9	6	0 -300	7	8	+200 -200
80 120		0 -15	11	8	0 -400	8	9	+200 -200
120 180		0 -18	14	9	0 -500	11	10	+350 -250
180 250		0 -22	17	11	0 -600	13	11	+350 -250
250 315		0 -25	19	13	0 -700	16	13	+350 -250
315 400		0 -30	23	15	0 -800	19	15	+400 -400
400 500		0 -35	26	18	0 -900	22	17	+400 -400
500 630		0 -40	30	20	0 -1000	26	20	+500 -500
630 800		0 -50	50	25	0 -1500	30	26	+600 -600
800 1000		0 -65	60	30	0 -2000	35	32	+750 -750

Outer Ring

Tolerance class P5

Nominal outer diameter		Deviation	Variation	Variation	Radial runout	Outside inclination variation
<=	<=	△Dmp	VDp	VDmp	Kea
18 30		0 -8	6	5	6	8
30 50		0 -9	7	5	7	8
50 80		0 -11	8	6	8	8
80 120		0 -13	10	7	10	9
120 150		0 -15	11	8	11	10
150 180		0 -18	14	9	13	10
180 250		0 -20	15	10	15	11
250 315		0 -25	19	13	18	13
315 400		0 -28	22	14	20	13
400 500		0 -33	25	17	23	15
500 630		0 -38	29	19	25	18
630 800		0 -45	34	23	30	20
800 1000		0 -60	45	30	35	25
1000 1250		0 -80	75	38	40	30
1250 1600		0 -100	90	45	45	35

The width tolerance △Cs is identical to△Bs of inner ring of the same bearing

Tolerances for DHK metric taper roller bearings (excluding tapered roller bearings)

All dimensions shown in (mm):

Tolerances in (um):

Inner Ring

Tolerance class P4

Nominal bore diameter		Deviation	Variation	Variation	Ring width deviation	Radial runout	Side face runout	Side face runout	Ring width deviation
<=	<=	△dmp △ds	Vdp	Vdmp	△Bs	kia	Sd	Sia	△Ts
10 18		0 -5	4	4	0 -200	3	3	3	+200 -200
18 30		0 -6	5	4	0 -200	3	4	4	+200 -200
30 50		0 -7	6	5	0 -240	4	4	4	+200 -200
50 80		0 -8	7	5	0 -300	4	5	4	+200 -200
80 120		0 -10	8	5	0 -400	5	5	5	+200 -200
120 180		0 -13	10	7	0 -500	6	6	7	+350 -250
180 250		0 -15	11	8	0 -600	8	7	8	+350 -250

Outer Ring

Tolerance class P4

Nominal outer diameter		Deviation	Variation	Variation	Radial runout	Outside inclination variation	Side face runout
<=	<=	△Dmp △Ds	VDp	VDmp	Kea	SD	Sea
18 30		0 -6	5	4	4	4	5
30 50		0 -7	5	5	5	4	5
50 80		0 -9	7	5	5	4	5
80 130		0 -10	8	5	6	5	6
130 150		0 -11	8	6	7	5	7
150 180		0 -13	10	7	8	5	8
180 250		0 -15	11	8	10	7	10
250 315		0 -18	14	9	11	8	10
315 400		0 -20	15	10	13	10	13

The width tolerance △Cs and VCs are identical to△Bs and VBs of inner ring of the same bearing

The clearance of single row taper roller bearings is adjusted one bearing against another during mounting.

DHK taper roller bearing pairs arranged face-to- face (suffix DF) and back-to-back(suffix DB) are produced with internal clearance values, as listed in the table below. DHK can provide bearing pairs with special axial clearance upon request.

Axial Internal Clearance Of Paired DHK taper roller bearings,arranged face to face(DF) and back to back(DB)

Bore Dia. (mm)		Axial intcrnal clearance Series（μm）
>	<=	329 Min max	320 Min max X	330 Min max	331，3．2，332，332 Min max	303，323 Min max	313 Min max
-- 30		-- --	80 120	-- --	100 140	130 170	60 100
30 40		-- --	100 140	-- --	120 160	140 180	70 110
40 50		-- --	120 160	180 220	140 180	160 200	80 120
50 65		-- --	140 180	200 240	160 200	180 220	100 140
65 80		-- --	160 200	250 290	180 220	200 260	110 170
80 100		270 310	190 230	350 390	210 270	240 300	110 170
100 120		270 330	220 280	340 400	220 280	280 340	130 190
120 140		310 370	240 300	340 400	240 300	330 390	160 220
140 160		370 430	270 330	340 400	270 330	370 430	180 240
160 180		370 430	310 370	-- --	310 370	390 450	-- --
180 190		370 430	340 400	-- --	340 400	440 500	-- --
190 200		390 450	340 400	-- --	340 400	440 500	-- --
200 225		440 500	390 450	-- --	390 450	490 550	-- --
225 250		440 500	440 500	-- --	440 500	540 600	-- --
250 280		540 500	490 55	-- --	490 550	-- --	-- --
280 300		640 700	540 600	-- --	540 600	-- --	-- --
300 340		640 700	590 650	-- --	590 650	-- --	-- --

Dimensions and Parameters

Inquiry	Designation		Boundary dimensions(mm)								Speed ratings		Load ratings[kN]		Calculation factors			Abutment and fillet dimensions(mm)						Mass (kg)
Inquiry	DIN720	ISO355	d	D	B	C	T	r1,r2 min	r3,r4 min	a	grease	oil	dyn Cr	stat Cor	e	Y	Y0	Da max	db min	Da min	Db min	Ca min	Cb min	Mass (kg)
	32028X	T4DC140	140	210	45	34	45	2.5	2	46	1600	2200	346	610	0.46	1.31	0.72	153	150	187	202	8	11	5.18
	33028	--	140	210	56	44	86	2.5	2	--	1500	2000	406	758	0.36	1.37	0.92	152	152	186	202	--	--	6.61
	30228	T4FB140	140	250	42	36	45.75	4	3	47	1400	1900	425	570	0.44	1.38	0.76	163	154	219	234	9	9.5	8.5
	32228	T4FD140	140	250	68	58	71.75	4	3	60	1400	1900	655	100	0.44	1.38	0.76	159	154	210	238	8	13.5	14
	30328	T2GB140	140	300	62	53	67.75	5	4	52	1200	1700	585	735	0.28	2.18	1.2	176	158	255	283	8	14.5	20.5
	31328	T7GB140	140	300	70	47	77	5	4	94	1000	1500	695	900	0.83	0.73	0.4	169	158	235	280	9	30	23.4
	32328	--	140	300	102	85	107.75	5	4	74	1000	1500	1160	1700	0.35	1.74	0.96	170	157	247	280	10	22.5	35.5
	32930	--	150	210	38	30	38	2.5	2	--	1500	2000	270	500	0.33	1.8	1	171	148	193	205	--	--	3.88
	32030X	T4EC150	150	225	48	36	48	3	2.5	50	1500	2000	390	695	0.46	1.31	0.72	164	162	200	216	8	12	6.31
	33030	--	150	225	59	46	59	3	2.5	--	1500	2000	457	865	0.37	1.6	0.9	162	164	213	217	--	--	8.15
	30230	T4GB150	150	270	45	38	49	4	3	52	1300	1800	475	640	0.44	0.38	0.76	175	164	234	250	9	11	11.1
	32230	T4GD150	150	270	73	60	77	4	3	64	1200	1700	750	1160	0.44	1.38	0.76	171	164	226	254	8	17	18.5
	30330	T2GB150	150	320	65	55	72	5	4	60	1100	1600	800	1020	0.35	1.74	0.96	189	168	273	292	9	17	25.5
	31330	T7GB150	150	320	75	50	82	5	4	100	950	1400	780	1020	0.83	0.73	0.4	171	168	251	300	9	32	28.5
	32330	--	150	320	108	90	114	5	4	79	950	1400	1320	1930	0.35	1.74	0.96	184	167	264	299	12	24	45
	32930	--	160	220	36	31	38	2.5	2	--	1100	1600	250	455	0.35	1.7	0.95	178	168	206	215	--	--	4.06
	32032X	T4EC160	160	240	51	38	51	3	2.5	53	1300	1800	425	750	0.46	1.31	0.72	175	172	213	231	8	13	7.78
	30232	T4GB160	160	290	48	40	52	4	3	51	1100	1600	405	585	0.37	1.61	0.89	189	174	252	269	9	12	13.2
	32232	T4GD160	160	290	80	67	84	4	3	69	1100	1600	880	1400	0.44	1.38	0.76	183	172	242	274	10	17	23.8
	30332	T2GB160	160	340	68	58	75	5	4	63	1000	1500	880	1120	0.35	1.74	0.96	201	178	290	310	9	17	29.9
	31332	--	160	340	79	54	87	5	4	--	1000	1500	850	1220	0.83	0.7	0.4	205	185	307	323	--	--	34.5
	32332	--	160	340	114	95	121	5	4	--	950	1400	1210	1770	0.37	1.6	0.88	210	183	301	327	--	--	48.5
	32934	--	170	230	36	31	38	2.5	2	--	1200	1700	258	485	0.36	1.6	0.9	188	178	216	225	--	--	4.3
	32034X	T4EC170	170	260	57	43	57	3	2.5	57	1200	1700	465	800	0.44	1.35	0.74	187	182	230	249	10	14	1.6
	30234	T4GB170	170	310	52	43	57	5	4	60	1000	1500	600	830	0.44	1.38	0.78	203	188	269	288	8	14	17
	32234	T4GD170	170	310	86	71	91	5	4	74	1000	1500	9800	1600	0.44	1.38	0.76	196	188	259	294	10	20	29.1
	30334	--	170	360	72	62	80	5	4	--	950	1400	845	1080	0.37	1.6	0.9	219	198	326	344	--	--	33.5
	31334	--	170	360	84	56	92	5	4	--	950	1400	965	1400	0.83	0.7	0.4	219	198	326	344	--	--	40.9
	32334	--	170	360	120	100	127	5	4	--	900	1300	1370	2050	0.37	1.6	0.88	222	194	319	346	--	--	57
	32936	--	180	250	42	36	45	2.5	2	--	1200	1700	310	570	0.37	1.6	0.88	200	189	234	244	--	--	6.22
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