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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)
	32036X	T3FD180	180	280	64	48	64	3	2.5	60	1100	1600	630	1100	0.42	1.42	0.78	199	192	247	267	10	16	14.2
	30236	T4GB180	180	320	52	43	57	5	4	62	1000	1500	570	800	0.45	1.33	0.73	211	198	278	297	9	14	17.9
	32236	T4GD180	180	320	86	71	91	5	4	77	950	1400	1020	1660	0.45	1.33	0.73	204	198	267	303	10	20	29.9
	30336	--	180	380	75	64	83	5	4	--	950	1400	935	1230	0.36	1.7	0.92	230	209	343	360	--	--	39.3
	31336	--	180	380	88	60	97	5	4	--	950	1400	1040	1530	0.83	0.7	0.4	230	209	343	360	--	--	47.7
	32336	--	180	380	126	106	134	5	4	-	950	1400	1520	2290	0.37	1.6	0.88	232	205	336	364	--	--	66.8
	32938	--	190	260	42	36	45	2.5	2	--	950	1400	335	645	0.39	1.5	0.85	210	199	244	254	--	--	6.59
	32038X	T4FD190	190	290	64	48	64	3	2.5	63	1000	1500	640	1140	0.44	1.36	0.75	209	202	257	279	10	16	14.8
	30238	T4GB190	190	340	55	46	60	5	4	62	950	1400	530	780	0.39	1.56	0.86	224	207	298	318	9	14	21
	32238	T4GD190	190	340	92	75	97	5	4	81	900	1300	1140	1830	0.44	1.38	0.76	216	207	286	323	10	22	36.7
	31338	--	190	400	92	65	101	5	4	--	900	1300	1120	1630	0.73	0.8	0.5	249	220	355	385	--	--	54.1
	32338	--	190	400	136	109	140	6	5	--	850	1200	1660	1580	0.37	1.6	0.88	249	220	355	385	--	--	78.9
	32940	--	200	280	51	39	51	3	2.5	--	1000	1500	475	950	0.4	1.5	0.8	212	217	268	271	--	--	9.39
	32040X	T4FD200	200	310	70	53	70	3	2.5	67	950	1400	765	1370	0.43	1.39	0.77	221	212	273	297	11	17	18.9
	30240	T4GB200	200	360	58	48	64	5	4	69	900	1300	1320	2160	0.44	2.31	1.52	237	217	315	336	9	16	25.1
	32240	T4GD200	200	360	98	82	104	5	4	83	900	1300	1320	2080	0.41	1.48	0.81	226	217	302	340	11	22	43.7
	30340	--	200	420	80	67	89	6	5	--	850	1200	1030	1390	0.37	1.6	0.88	251	229	372	391	--	--	52.3
	31340	--	200	420	97	70	107	5	4	--	850	1200	1320	1900	0.79	0.8	0.1	251	229	372	391	--	--	65.1
	32340	--	200	420	138	115	146	6	5	--	800	1100	1820	2870	0.37	1.6	0.88	260	229	372	103	--	--	90.9
	32944	--	220	300	51	39	51	3	2.5	--	900	1300	475	1000	0.43	1.4	0.8	--	--	--	--	--	--	10.1
	32044X	T4FD220	220	340	76	57	76	4	3	73	900	1300	900	1630	0.73	1.39	0.77	243	234	300	326	12	19	24.4
	30244	T4GB220	220	400	65	54	72	5	4	75	850	1200	950	1320	0.42	1.43	0.79	255	237	348	371	10	18	34.6
	32244	--	220	400	108	90	114	5	4	94	800	1100	1530	2550	0.44	1.38	0.76	258	237	336	380	12	24	60.2
	30344	--	220	460	88	73	97	6	5	--	750	1000	1430	1990	0.36	1.7	0.92	277	254	414	434	--	--	72.4
	32344	--	220	460	145	122	154	6	5	--	700	950	2020	3200	0.37	1.6	0.88	291	250	405	438	--	--	114
	32948	--	240	320	51	39	51	3	2.5	--	900	1300	490	1080	0.46	1.3	0.7	252	255	308	311	--	--	109
	32048X	--	240	360	76	57	76	4	3	--	850	1200	920	1730	0.46	1.3	0.72	261	253	318	351	--	--	25.1
	30248	--	240	440	72	60	79	5	4	--	800	1100	990	1400	0.44	1.4	0.74	290	267	401	422	--	--	45.2
	32248	--	240	440	120	100	127	5	4	--	750	1000	1630	2730	0.4	1.5	0.82	296	265	397	426	--	--	78
	30348	--	240	500	95	80	105	6	5	--	750	1000	1660	2340	0.36	1.7	0.92	300	277	449	471	--	--	92.6
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