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
	3314B.2Z	70	150	63.5	2.1	109	154.5	125.1	2800	--	4.7
	3314DA	70	150	63.5	2.1	141	163	156	--	4000	5.24
	3815B	75	95	15	0.6	--	16	20.3	4200	4700	0.224
	3815B.2RSR	75	95	15	0.6	--	16	20.3	4200	--	0.224
	3815B.2Z	75	95	15	0.6	--	16	20.3	4200	--	0.224
	3915B	75	105	23	1	--	26	31.3	3800	4300	0.546
	3915B.2RSR	75	105	23	1	--	26	31.3	3800	--	0.546
	3915B.2Z	75	105	23	1	--	26	31.3	3800	--	0.546
	3015B	75	115	30	1.1	--	57.7	66.5	3400	4000	1.003
	3015B.2RSR	75	115	30	1.1	--	57.7	66.5	3400	--	1.003
	3015B.2Z	75	115	30	1.1	--	57.7	66.5	3400	--	1.003
	3215B	75	130	41.3	1.5	61.3	87.9	81.4	3000	3600	2.01
	3215B.2RSR	75	130	41.3	1.5	61.3	87.9	81.4	3000	--	2.01
	3215B.2Z	75	130	41.3	1.5	61.3	87.9	81.4	3000	--	2.01
	3315B	75	160	68.3	2.1	117	163	193	2600	3600	6.2
	3315B.2RSR	75	160	68.3	2.1	117	171.4	134.8	2600	--	6.3
	3315B.2Z	75	160	68.3	2.1	117	171.4	134.8	2600	--	6.3
	3816B	80	100	15	0.6	--	16.5	21.7	4000	4400	0.23
	3816B.2RSR	80	100	15	0.6	--	16.5	21.7	4000	--	0.23
	3816B.2Z	80	100	15	0.6	--	16.5	21.7	4000	--	0.23
	3916B	80	110	23	1	--	26.7	32.5	3500	4000	0.576
	3916B.2RSR	80	110	23	1	--	26.7	32.5	3500	--	0.576
	3916.2Z	80	110	23	1	--	26.7	32.5	3500	--	0.576
	3016B	80	125	34	1.1	--	63.5	67.8	3100	3800	1.38
	3016B.2RSR	80	125	34	1.1	--	63.5	67.8	3100	--	1.38
	3016B.2Z	80	125	34	1.1	--	63.5	67.8	3100	--	1.38
	3216B	80	140	44.4	2	69	103.7	97.5	2800	3600	2.48
	3216B.2RSR	80	140	44.4	2	69	103.7	97.5	2800	--	2.48
	3216.2Z	80	140	44.4	2	69	103.7	97.5	2800	--	2.48
	3316	80	170	68.3	2.1	123	176	212	2400	3400	7
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