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
	7004C	20	42	12	0.6	0.15	10.5	6.02	14000	19000	0.064
	7004AC	20	42	12	0.6	0.15	10	5.74	14000	19000	0.064
	7204C	20	47	14	1	0.3	15.5	8.91	13000	18000	0.1
	7204AC	20	47	14	1	0.3	15	8.54	13000	18000	0.1
	7204B	20	47	14	1	0.6	13.4	7.65	13000	18000	0.11
	7304B	20	52	15	1.1	0.6	19	10.4	12000	17000	0.15
	7005C	25	47	12	0.6	0.15	12.9	8.58	12000	17000	0.074
	7005AC	25	47	12	0.6	0.15	11.1	7.08	12000	17000	0.074
	7205C	25	52	15	1	0.3	16.6	9.18	11000	16000	0.122
	7205AC	25	52	15	1	0.3	15.9	9.81	11000	16000	0.122
	7205B	25	52	15	1	0.6	14.6	9.3	11000	16000	0.13
	7305C	25	62	17	1.1	0.6	29.9	17.2	9500	14000	0.23
	7305AC	25	62	17	1.1	0.6	28.9	16.7	9500	14000	0.23
	7305B	25	62	17	1.1	0.6	26	15	9500	14000	0.23
	7006C	30	55	13	1	0.3	15.1	10.3	9500	14000	0.11
	7006AC	30	55	13	1	0.3	14.4	9.83	9500	14000	0.11
	7206C	30	62	16	1	0.3	23	14.7	9000	13000	0.198
	7206AC	30	62	16	1	0.3	22.1	14.1	9000	13000	0.198
	7206B	30	62	16	1	0.6	20.4	13.4	9000	13000	0.2
	7306C	30	72	19	1.1	0.6	35.9	22.3	8500	12000	0.35
	7306AC	30	72	19	1.1	0.6	34.6	21.4	8500	12000	0.35
	7306B	30	72	19	1.1	0.6	32.5	20	8000	11000	0.35
	7007C	35	62	14	1	0.3	16.3	12.1	8500	12000	0.15
	7007AC	35	62	14	1	0.3	15.5	11.5	8500	12000	0.15
	7207C	35	72	17	1.1	0.6	32.1	22	8000	11000	0.305
	7207AC	35	72	17	1.1	0.6	30.7	20.7	9000	12000	0.305
	7207B	35	72	17	1.1	0.6	27	18.3	8000	11000	0.3
	7307C	35	80	21	1.5	0.6	44.1	28	7500	10000	0.47
	7307AC	35	80	21	1.5	0.6	42.5	27	7500	10000	0.47
	7307B	35	80	21	1.5	1	39	25	7000	9500	0.46
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