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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)
	32348	--	240	500	155	132	165	6	5	--	700	950	2520	4100	0.37	1.6	0.88	307	273	444	479	--	--	145
	32952	--	260	360	63.5	48	63.5	3	2.5	--	900	1300	710	1500	0.41	1.5	0.8	294	253	332	351	--	--	18.8
	32052X	--	260	400	87	65	87	5	4	--	800	1100	1160	2160	0.43	1.4	0.76	287	276	352	389	--	--	38.5
	30252	--	260	480	80	67	89	6	5	--	700	950	1190	1700	0.44	1.4	0.74	318	291	438	461	--	--	60.7
	32252	--	260	480	130	106	137	6	5	--	670	900	2200	3750	0.45	1.39	0.77	306	286	401	460	--	--	103
	30352	--	260	540	102	85	113	6	6	--	630	850	2120	3050	0.35	1.7	0.9	286	325	512	493	--	--	110
	32956	--	280	380	63.5	48	63.5	3	2.5	--	800	1100	710	1560	0.43	1.4	0.8	292	298	368	368	--	--	19.9
	32056X	--	280	420	87	65	87	5	4	--	750	1000	1180	2240	0.46	1.3	0.82	305	295	370	409	--	--	40.6
	30256	--	280	500	80	67	89	6	5	--	700	950	1240	1900	0.44	1.4	0.74	336	313	456	478	--	--	66.3
	32960	--	300	420	76	57	76	4	3	--	700	950	930	2040	0.39	1.5	0.8	314	324	406	405	--	--	31.3
	32060X	--	300	460	100	74	100	5	4	--	670	900	1530	2900	0.43	1.4	0.76	329	317	404	439	--	--	57.2
	30260	--	300	540	95	71	96	6	5	--	650	920	1440	2100	0.44	1.4	0.74	357	331	493	517	--	--	80.6
	32260	--	300	540	140	115	149	6	5	--	600	800	2220	3700	0.46	1.3	0.72	364	329	486	524	--	--	132
	32964	T4FD200	320	440	72	63	76	4	3	--	670	900	1000	2320	0.42	1.4	0.8	334	343	428	426	9	16	33.6
	32064X	--	320	480	100	74	100	5	4	--	630	850	1560	3100	0.46	1.3	0.72	350	338	424	461	--	--	59.4
	30264	--	320	580	92	75	104	6	5	--	600	800	1640	2420	0.44	1.4	0.74	382	354	529	554	--	--	99.3
	32264	--	320	580	150	125	159	5	5	--	550	750	2620	4650	0.47	1.27	0.7	342	369	473	551	--	--	172.1
	32968	--	340	460	76	57	76	4	3	--	630	850	1040	2450	0.44	1.4	0.8	357	361	440	446	--	--	33.6
	32068	--	340	520	106	90	112	5	5	--	500	720	1650	3150	0.37	1.6	0.88	362	374	452	496	--	--	78.7
	32972	--	360	480	76	57	76	4	3	--	600	800	1020	2400	0.46	1.5	0.82	377	380	464	466	--	--	35.8
	32072X	--	360	540	106	90	112	5	5	--	500	720	1740	3300	0.37	1.6	0.88	382	394	476	519	--	--	83.7
	30272	--	360	680	150	125	165	7.5	7.5	--	480	630	3690	6300	0.6	1	0.6	394	416	551	646	--	--	260
	32976	--	380	520	82	71	87	5	4	--	560	750	1210	2550	0.39	1.6	0.86	418	396	487	501	--	--	49.5
	32076X	--	380	560	106	90	112	5	5	--	500	720	1920	3800	0.37	1.6	0.88	402	413	495	539	--	--	89.3
	32980	--	400	540	82	71	87	5	4	--	500	720	1250	2700	0.4	1.5	0.82	439	417	508	530	--	--	52.7
	32080	--	400	600	125	100	125	6	5	--	480	630	1960	4050	0.36	1.7	0.92	453	424	553	580	--	--	116
	32984	--	420	560	82	72	87	5	4	--	480	630	1300	2810	0.41	1.5	0.81	458	436	528	550	--	--	54.8
	32084	--	420	620	118	100	125	6	5	--	450	600	2000	4200	0.37	1.6	0.88	473	444	572	600	--	--	121
	32988	--	440	600	95	82	100	4	4	--	450	600	1600	3450	0.35	1.7	0.93	458	473	543	581	--	--	76
	32088	--	440	650	122	104	130	6	6	--	400	550	2230	4600	0.36	1.7	0.92	496	467	602	630	--	--	136
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