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
	7236ACM	180	320	52	4	1.5	244	399	1500	2000	18.7
	7236CM	180	320	52	4	1.5	256	418	1500	2000	18.7
	7336BM	180	380	75	4	1.5	375	490	1300	1800	42.6
	71938ACM	190	260	33	2	1.1	139	177	1800	2200	4.45
	7038ACM	190	290	46	2.1	1.1	176	265	1600	2200	11.3
	7238BM	190	340	55	4	1.5	284	375	1400	1900	22.5
	7338BM	190	400	78	5	2	410	550	1200	1700	47.2
	7040ACM	200	310	51	2.1	1.1	203	330	1500	2000	15.7
	7240ACM	200	360	58	4	1.5	265	462	1300	1800	26.5
	7240BM	200	360	58	4	1.5	238	417	1300	1800	26.6
	7340BM	200	420	80	5	2	430	600	1100	1600	55.3
	7244ACM	220	400	65	4	1.5	325	605	1100	1600	37.5
	71944CM	220	300	38	2.1	1.1	143	201	1500	2000	7.35
	7244BM	220	400	65	4	1.5	370	530	1100	1600	37.1
	7344BM	220	460	88	5	2	450	665	1000	1500	72.9
	7348BM	240	500	95	5	2	475	670	900	1300	88.5
	7248BM	240	440	72	4	1.5	322	626	1000	1500	52.3
	71852CM	260	320	28	2	1	104	166	1400	1900	4.78
	71952BM	260	360	46	2.1	1.1	212	302	1300	1600	14.3
	71952ACM	260	360	46	2.1	1.1	200	380	1300	1800	14.5
	7252BM	260	480	80	5	2	507	780	900	1300	66
	71956ACM	280	380	46	2.1	1.1	206	405	1100	1600	16.7
	7256BM	280	500	80	5	2	520	850	850	1200	69.5
	7060BM	300	460	74	4	1.5	345	545	950	1400	44.5
	7260BM	300	540	85	5	2.1	553	930	850	1200	86.5
	7064BM	320	480	74	4	1.5	390	670	850	1200	44.5
	7264BM	320	580	82	5	2	624	1120	750	1000	110
	7068BM	340	520	82	5	2	465	820	800	1100	61.8
	71968BM	340	460	56	3	1.1	296	530	850	1200	27
	71972BM	360	480	56	3	1.1	302	550	800	1100	28.5
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