Single Row Angular Contact Ball Bearings

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Design Variants

Misalignment

Cage

Tolerance

Internal clearance

DHK single row angular contact ball bearings are non-separable radial bearings, Due to their different contact angles , they have four design variants.

1) Contact angle with 15 , bearing designation with suffix C.

2) Contact angle with 25 , bearing designation with suffix AC.

3) Contact angle with 35 , bearing designation with suffix A.

4) Contact angle with 40 , bearing designation with suffix B.

Paired Bearings：

Single row angular contact ball bearings are ofen used as pairs. DHK can produced different arrangements bearing pairs, the customer can use the pairs direct so to save the mounting works and avoid the mistake of adjusting the mounting clearance. The frequently used arrangement pairs as the follows.

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DHK single row angular contact ball bearings are non-separable radial bearings, Due to their different contact angles , they have four design variants.
1) Contact angle with 15 , bearing designation with suffix C.
2) Contact angle with 25 , bearing designation with suffix AC.
3) Contact angle with 35 , bearing designation with suffix A.
4) Contact angle with 40 , bearing designation with suffix B.

Paired Bearings：
Single row angular contact ball bearings are ofen used as pairs. DHK can produced different arrangements bearing pairs, the customer can use the pairs direct so to save the mounting works and avoid the mistake of adjusting the mounting clearance. The frequently used arrangement pairs as the follows.
Single row angular contact ball bearings have a very limited ability to accommodate misalignments. Any operating misalignments applied to this bearings will reduce their service life and generates higher running noise.
Normally, up to 2 angular minutes misalignment form the centre p0stion does not effact the bearings negatively.
DHK single row angular contact ball bearings are fitted with plastic cage (suffix TVP) as standard. Large size have machined solid brass(Suffix M) fitted as standard.
On reguest, DHK also can produce this bearing with pressed steel cage(suffix JP) or phenolic resin cage(Suffix TPA).

DHK single row angular contact ball bearings are produced to normal tolerance class(PN) as standard.

On request, DHK also can produce the bearings with closer tolerance, such as P6, P5 or P4.

Detailed values are listed in chapter of tolerance of redial bearing, page 8.

Tolerances for DHK single row angular contact ball bearings (excluding tapered roller bearings)

All dimensions shown in (mm):

Tolerances in (um):

Inner Ring

PN/(Normal)

Nominal Bore diameter		Deviation dmp	Variation Vdp Series			Variation Vdmp	Taper bore 1:12 Deviation/ Variation
>	<=	△dmp	7．8．9	0．1	2．3．4	Vdmp	△dmp	△d1mp-dmp	Vdp
2.5 10		0 -8	10	8	6	6	+15 0	+15 0	10
10 18		0 -8	10	8	6	6	+18 0	+18 0	10
18 30		0 -10	13	10	8	8	+21 0	+21 0	13
30 50		0 -12	15	12	9	9	+25 0	+25 0	15
50 80		0 -15	19	19	11	11	+30 0	+30 0	19
80 120		0 -20	25	25	15	15	+35 0	+35 0	25
120 180		0 -25	31	31	19	19	+40 0	+40 0	31
180 250		0 -30	38	38	23	23	+46 0	+46 0	38
250 315		0 -35	44	44	26	26	+52 0	+52 0	44
315 400		0 -40	50	50	30	30	+57 0	+57 0	50
400 500		0 -45	56	56	34	34	+63 0	+63 0	56
500 630		0 -50	63	63	38	38	+70 0	+70 0
630 800		0 -75					+80 0	+80 0
800 1000		0 -100					+90 0	+90 0
1000 1250		0 -125					+105 0	+105 0
1250 1600		0 -160
1600 2000		0 -200

Outer ring

PN/(Normal)

Nominal Outer diameter		Deviation	Variation Vdp Series			Sealed bearing	Variation	Radial runout
>	<=	△Dmp	7．8．9	0．1	2．3．4	2 3 4	VDmp	Kea
6 18		0 -8	10	8	6	10	6	15
18 30		0 -9	12	9	7	12	7	15
30 50		0 -11	14	11	8	16	8	20
50 80		0 -13	16	13	10	20	10	25
80 120		0 -15	19	19	11	26	11	35
120 150		0 -18	23	23	14	30	14	40
150 180		0 -25	31	31	19	38	19	45
180 250		0 -30	38	38	23		23	50
250 315		0 -35	44	44	26		26	60
315 400		0 -40	50	50	30		30	70
400 500		0 -45	56	56	34		34	80
500 630		0 -50	63	63	38		38	100
630 800		0 -75	94	94	55		55	120
800 1000		0 -100	125	125	75		75	140
1000 1250		0 -125						160
1250 1600		0 -160						190
1600 2000		0 -200						220
2000 2500		0 -250						250

Dimensions and Parameters

Inquiry	Designations	Boundary dimensions					Load ratings[KN]		Speed ratings[rpm]		Mass
Inquiry	Designations	d	D	B	r1,r2 Min	a ≈	Dynmic Cr	stat Cor	grease	oil	Mass
	7322BM	110	240	50	3	1.1	164	212	2200	3200	11.5
	71924CM	120	165	22	1.1	0.6	51.2	52.2	2200	3200	1.51
	7024ACM	120	180	28	2	1	77	107	2600	3600	2.62
	7224CM	120	215	40	2.1	1.1	190	179	2400	3400	5.4
	7224ACM	120	215	40	2.1	1.1	146	184	2200	3200	6.04
	7224BM	120	215	40	2.1	1.1	193	262	2400	3400	6.13
	7324CM	120	260	55	3	1.1	279	288	2200	3200	14.8
	7324BM	120	260	55	3	1.1	193	262	1900	2800	14.6
	7324ACM	120	260	55	3	1.1	204	269	1900	2800	14.1
	7226ACM	130	230	40	3	1.1	155	200	1900	2800	7.26
	7226BM	130	230	40	3	1.1	135	175	1900	2800	7.56
	7226CM	130	230	40	3	1.1	165	210	1900	2800	7.28
	7326BM	130	280	58	4	1.5	251	270	1800	2600	17.5
	7028ACM	140	210	33	2	1	98	137	2000	3000	4.14
	7228CM	140	250	42	3	1.1	180	243	1800	2600	8.83
	7228ACM	140	250	42	3	1.1	170	237	1800	2600	8.71
	7228BM	140	250	42	3	1.1	147	207	1800	2600	8.59
	7328BM	140	300	62	4	1.5	212	310	1700	2400	21.6
	7030ACM	150	225	35	2.1	1.1	137	154	1900	2800	4.8
	7230ACM	150	270	45	3	1.1	248	280	1700	2400	12.6
	7230BM	150	270	45	3	1.1	225	254	1700	2400	11.2
	7330BM	150	320	65	4	1.5	289	340	1600	2200	26.7
	7330ACM	150	320	65	4	1.5	315	370	1600	2200	26
	7032ACM	160	240	38	2.1	1.1	155	176	1800	2600	5.95
	7232ACM	160	290	48	3	1.1	263	305	1600	2200	14.5
	7232CM	160	290	48	3	1.1	279	324	1600	2200	14.5
	7332BM	160	340	68	4	1.5	315	385	1400	2000	30.8
	7034ACM	170	260	42	2.1	1.1	186	214	1700	2400	8.27
	7234CM	170	310	52	4	1.5	295	360	1600	2200	18.3
	7234ACM	170	310	52	4	1.5	266	325	1600	2200	18.3
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