Double Row Angular Contact Ball bearings

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Design Variants

Misalignment

Cage

Tolerance

Internal clearance

DHK double row angular contact ball bearings have three basic designs:

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1) 32 and 33 type double row angular contact ball bearings(sketch a), feature a filling slot in one face and contact angle of 35 . These bearings must be mounted in such a way the large thrust force acts towards the raceway without the filling slot.

2) 32 B and 33B type double row angular contact ball bearing (sketch b), this is the latest designs, no filling slots, contact angle is 32 . these bearing are capable of accommodating thrust forces equally well in both directions. DHK double row angular contact ball bearings of B design are available with shields or seals on both sides (sketch d and e).For manufacturing reasons, the open design bearings also may have grooves in their outer rings, that are used to locate either shields or seals (sketch c).

3) 33DA type double row angular contact ball bearings, feature two-half inner ring and contact angle of 45 , no filling slots, inner rings are separable (sketch f ).

DHK double row angular contact ball bearings have three basic designs:

1) 32 and 33 type double row angular contact ball bearings(sketch a), feature a filling slot in one face and contact angle of 35 . These bearings must be mounted in such a way the large thrust force acts towards the raceway without the filling slot.
2) 32 B and 33B type double row angular contact ball bearing (sketch b), this is the latest designs, no filling slots, contact angle is 32 . these bearing are capable of accommodating thrust forces equally well in both directions. DHK double row angular contact ball bearings of B design are available with shields or seals on both sides (sketch d and e).For manufacturing reasons, the open design bearings also may have grooves in their outer rings, that are used to locate either shields or seals (sketch c).
3) 33DA type double row angular contact ball bearings, feature two-half inner ring and contact angle of 45 , no filling slots, inner rings are separable (sketch f ).
DHK double row angular contact ball bearings are produced and fitted with pressed steel cages(no suffix indicated), polyamide cages (suffix TV) or brass cages (suffix M).
Kindly please clarify this point period of place an order.

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

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

Tolerances for DHK double 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

DHK double row angular contact ball bearings are produced to axial clearance group CN(normal) as standard. DHK can provide bearings with other axial clearance group on request.

Note: 33DA type application on where have high axial load, there for the press fit to shaft or house will tighten than other bearings, so the normal axial clearance of this design should be C3 group.

Values of clearance groups are listed in the table below.

Axial Internal Clearance Groups Of DHK Double Row Angular Contact Ball Bearings

Bore Dia.(mm)		C2(um)	CN(um)	C3(um)		C4(um)
<=	<=
-- 10		1 11	5 21	12 28		25 45
10 18		1 12	6 23	13 31		27 47
18 24		2 14	7 25	16 34		28 47
24 30		2 15	8 27	18 37		30 50
30 40		2 16	9 29	21 40		33 54
40 50		2 18	11 33	23 44		36 58
50 65		3 22	13 36	26 48		40 63
65 80		3 24	15 40	30 54		46 71
80 100		3 26	18 48	35 63		55 83
100 120		4 30	22 53	42 73		65 96
120 140		4 34	25 59		48 82	74 108

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
	3813B	65	85	15	0.6	--	15.1	18.3	4700	5200	0.182
	3813B.2RSR	65	85	15	0.6	--	15.1	18.3	4700	--	0.182
	3813B.2Z	65	85	15	0.6	--	15.1	18.3	4700	--	0.182
	3913B	65	90	19	1	--	21.4	24.8	4500	5000	0.324
	3913B.2RSR	65	90	19	1	--	21.4	24.8	4500	--	0.324
	3913B.2Z	65	90	19	1	--	21.4	24.8	4500	--	0.324
	3013B	65	100	26	1.1	--	49.5	59.2	4000	4800	0.661
	3013B.2RSR	65	100	26	1.1	--	49.5	59.2	4000	--	0.661
	3013B.2Z	65	100	26	1.1	--	49.5	59.2	4000	--	0.661
	3213B	65	120	38.1	1 5	60	80	73.5	3600	4800	1.8
	3213B.2RSR	65	120	38.1	1.5	60	80	73.5	2400	--	1.8
	3213B.2Z	65	120	38.1	1.5	60	80	73.5	3600	--	1.8
	3313B	65	140	58.7	2.1	71	150	118	3200	4300	4.1
	3313B.2RSR	65	140	58.7	2.1	71	150	118	2100	--	4.1
	3313B.2Z	65	140	58.7	2.1	71	150	118	3200	--	4.1
	3313DA.MA	65	140	58.7	2.1	131	143	137	--	4300	4.25
	3814B	70	90	15	0.6	--	18	21.9	4400	4800	0.19
	3814B.2RSR	70	90	15	0.6	--	18	21.9	4400	--	0.19
	3814B.2Z	70	90	15	0.6	--	18	21.9	4400	--	0.19
	3914B	70	100	23	1	--	25.8	30	4000	4600	0.516
	3914B.2RSR	70	100	23	1	--	25.8	30	4000	--	0.516
	3914B.2Z	70	100	23	1	--	25.8	30	4000	--	0.516
	3014B	70	110	30	1.1	--	54.2	58.9	3600	4400	0.95
	3014B.2RSR	70	110	30	1.1	--	54.2	58.9	3600	--	0.95
	3014B.2Z	70	110	30	1.1	--	54.2	58.9	3600	--	0.95
	3214B	70	125	39.7	1.5	62	83	76.5	3200	4300	1.98
	3214B.2RSR	70	125	39.7	1.5	62	83	76.5	2100	--	1.98
	3214B.2Z	70	125	39.7	1.5	62	83	76.5	3200	--	1.98
	3314B	70	150	63.5	2.1	109	154.5	125.1	2800	3800	4.7
	3314B.2RSR	70	150	63.5	2.1	109	154.5	125.1	2800	--	4.7
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