OEM/ODM Series 32300-Single Row Tapered Roller Bearings Company, Factory

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Series 32300-Single Row Tapered Roller Bearings

Metric Series
Inch series

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.
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	-- --	-- --

Model		Dimensions								Extreme speed		Rated load		Calculation factor			Abutment and fillet dimensions(mm)						Weight [kg]
DIN720	ISO355	d	D	B	C	T	r1,r2 min	r3,r4 min	a	Grease lubrication	Oil lubrication	Dynamic load	Static load	e	Y	Yo	Da max	db min	da min	Db min	Ca min	Cb min	Weight [kg]
32303	T2FD017	17	47	19	16	20.25	1	1	12	9000	13000	36.5	36.5	0.29	2.11	1.16	24	23	39	43	3	4	0.18
32304	T2FD020	20	52	21	18	22.25	1.5	1.5	14	8000	11000	46.5	48	0.3	2	1.1	27	27	43	47	3	4	0.25
32305	T2FD025	25	62	24	20	25.25	1.5	1.5	16	6700	9000	63	65.5	0.3	2	1.1	33	32	53	57	3	5	0.38
32306	T2FD030	30	72	27	23	28.75	1.5	1.5	18	5600	7500	81.5	90	0.31	1.9	1.05	39	37	59	66	4	5.5	0.59
32307	T5FE035	35	80	31	25	32.75	2	2	25	4800	6300	96.5	118	0.55	1.1	0.6	42	44	61	76	4	7.5	0.83
32308	T2FD040	40	90	33	27	35.25	2	1.5	23	4300	5600	122	150	0.35	1.1	0.6	50	49	73	82	4	8	1.2
32309	T5FD045	45	100	36	30	38.25	2	1.5	30	3600	4800	146	190	0.55	1.1	0.6	55	54	76	94	5	8	1.5
32310	T5FD050	50	110	40	33	42.25	2.5	2	33	3200	4300	166	224	0.55	1.1	0.6	60	60	83	103	5	9	1.9
32311	T5FD055	55	120	43	35	45.5	2.5	2	30	2800	3800	196	270	0.35	1.1	0.6	65	65	91	112	5	10.5	2.55
32312	T5FD060	60	130	46	37	48.5	3	2.5	39	2600	3600	224	305	0.55	1.1	0.6	71	72	100	122	6	11.5	3.15
32313	T5GD065	65	140	48	39	51	3	2.5	41	2200	3200	250	345	0.55	1.1	0.6	77	77	109	133	6	12	3.82
32314	T5GD070	70	150	51	42	54	3	2.5	44	2000	3000	285	375	0.55	1.1	0.6	83	82	117	143	7	12	4.64
32315	T5GD075	75	160	55	45	58	3	2.5	47	1900	2800	335	475	0.55	1.1	0.6	90	87	124	151	7	14	5.7
32316	T5GD080	80	170	58	48	61.5	3	2.5	49	1800	2600	360	510	0.55	1.1	0.6	96	92	130	160	7	13.5	6.74
32317	T5GD085	85	180	60	49	63.5	4	3	51	1800	2600	415	600	0.55	1.1	0.6	102	99	138	169	7	14.5	7.86
32318	T2GD090	90	190	64	53	67.5	4	3	47	1700	2400	490	655	0.35	1.74	0.96	108	104	157	177	8	14.5	8.5
32319	T5GD095	95	200	67	55	71.5	4	3	49	1700	2400	530	710	0.35	1.74	0.96	115	109	166	186	8	16.5	10.3
32320	T2GD100	100	215	73	60	77.5	4	3	53	1600	2200	610	850	0.35	1.74	0.96	123	114	177	200	8	17.5	13.1
32321	T2GD105	105	225	77	63	81.5	4	3	56	1500	2000	670	930	0.35	1.74	0.96	128	119	185	209	9	18.5	15.1
32322	T2GD110	110	240	80	65	84.5	4	3	58	1400	1900	735	1020	0.35	1.74	0.96	137	124	198	222	9	19.5	18.1
32324	T2GD120	120	260	86	69	90.5	4	3	66	1300	1800	670	965	0.39	1.53	0.84	148	134	213	239	9	21.5	21.1
32326	--	130	280	93	78	98.75	5	4	68	1100	1600	830	1120	0.34	1.75	0.96	160	147	230	260	10	20.5	30.2
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
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
32332	--	160	340	114	95	121	5	4	--	950	1400	1210	1770	0.37	1.6	0.88	210	183	301	327	--	--	48.5
32334	--	170	360	120	100	127	5	4	--	900	1300	1370	2050	0.37	1.6	0.88	222	194	319	346	--	--	57
32336	--	180	380	126	106	134	5	4	-	950	1400	1520	2290	0.37	1.6	0.88	232	205	336	364	--	--	66.8
32338	--	190	400	136	109	140	6	5	--	850	1200	1660	1580	0.37	1.6	0.88	249	220	355	385	--	--	78.9
32340	--	200	420	138	115	146	6	5	--	800	1100	1820	2870	0.37	1.6	0.88	260	229	372	103	--	--	90.9
32344	--	220	460	145	122	154	6	5	--	700	950	2020	3200	0.37	1.6	0.88	291	250	405	438	--	--	114
32348	--	240	500	155	132	165	6	5	--	700	950	2520	4100	0.37	1.6	0.88	307	273	444	479	--	--	145

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1. Calculation Factors of Series 32300 Bearings

The efficacy of Series 32300 bearings hinges significantly on several calculation factors that govern their performance characteristics. Among these factors, 'e,' denoting the internal design of the bearing, assumes paramount importance. With a calculated value of 0.29, 'e' reflects the bearing's ability to accommodate misalignment and deflection within the system. This feature is crucial in real-world applications where operational conditions may not always align perfectly with theoretical ideals. By allowing for a degree of misalignment, Series 32300 bearings enhance system robustness and reliability, mitigating the risk of premature wear and failure. Factors 'Y' and 'Yo' play pivotal roles in optimizing the load distribution and frictional characteristics of the bearing. Factor 'Y' accounts for the internal geometry of the bearing, influencing its ability to distribute loads evenly across the roller elements and raceways. A value of 2.21 for 'Y' signifies an efficient design that minimizes stress concentrations and ensures uniform loading, thereby enhancing bearing longevity and performance. Similarly, factor 'Yo,' with a standard value of 1.16, accounts for the material properties of the bearing components. By optimizing material selection and heat treatment processes, Series 32300 bearings achieve the ideal balance between hardness, strength, and ductility. This ensures that the bearing components withstand the rigors of operation without succumbing to premature fatigue or deformation, thereby guaranteeing sustained performance over prolonged service intervals.

2. Performance Optimization of Series 32300-Single Row Tapered Roller Bearings

Achieving optimal performance with Series 32300 bearings entails a multifaceted approach that encompasses meticulous design considerations, proper installation techniques, and proactive maintenance practices. Engineers must carefully evaluate the specific requirements of their application and tailor the bearing selection and configuration accordingly. One critical aspect of performance optimization involves ensuring proper lubrication of the bearing assembly. Adequate lubrication serves to reduce friction, dissipate heat, and prevent metal-to-metal contact between bearing components. By selecting the appropriate lubricant type and replenishing it at regular intervals, engineers can minimize wear and extend the operational lifespan of Series 32300 bearings. Attention to detail during the bearing installation process is paramount. Proper mounting procedures, including accurate alignment and precise torque application, help prevent premature bearing failure due to misalignment or overloading. Additionally, employing advanced predictive maintenance techniques, such as vibration analysis and thermal imaging, enables early detection of potential issues, allowing for timely intervention and mitigating the risk of costly downtime. By embracing a proactive approach to performance optimization, engineers can unlock the full potential of Series 32300 bearings, leveraging their inherent strengths to enhance system efficiency, reliability, and longevity. Through continuous monitoring, maintenance, and optimization efforts, Series 32300 bearings can serve as reliable cornerstones in a wide range of mechanical applications, supporting innovation and progress across industries.

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What are the key benefits of using spherical roller bearings in heavy-duty applications?

How can the misalignment of angular contact ball bearings affect their operational efficiency?

How can improper installation affect the performance of paired single row tapered roller bearings?

Industry Knowledge Expansion

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Series 32300-Single Row Tapered Roller Bearings

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Latest News

What are the key advantages of using Four Row Cylindrical Roller Bearings in heavy-duty applications?

In what types of machinery or systems are paired single-row tapered roller bearings most commonly used?

How does the internal geometry of spherical roller bearings impact their load-carrying capacity?

What are the key benefits of using spherical roller bearings in heavy-duty applications?

How can the misalignment of angular contact ball bearings affect their operational efficiency?

How can improper installation affect the performance of paired single row tapered roller bearings?

Industry Knowledge Expansion

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