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Angular Contact Ball Bearings Double Row DB Combination (E-B7012-DB)

Volume Discount

MiSUMi Economy

Angular Contact Ball Bearings Double Row DB Combination
Angular contact ball bearings double row are commonly used in applications that require high precision, high speed. These bearings are available in various sizes to choose from.
[Feature]
● Bearing Size Standards: Metric System
● Inner Diameter Minimum / Maximum (mm.) : 10 and 100
● Outer Diameter Minimum / Maximum (mm.) : 26 and 180
● Width Minimum / Maximum (mm.) : 8 and 34
● Precision (JIS) : Class 5
● Bearing Type : Open (No cover)
● Load Direction : Radial / Thrust Load or Axial Load
[Application]
It is used to support and guide rotating machine's components, such as shafts, wheels, pulleys ,etc

RoHS

Part Number

Configured Part Number is shown.

E-B7012-DB

Drawing/Specifications
3D Preview
Part Numbers

Features

· Because angular contact ball bearings have a contact angle, back-to-back combinations (DB combinations) can
support radial loads and axial loads in both directions simultaneously.
Parallel combinations (DT combinations) can support radial loads and axial loads in one direction at the same time.
Suitable when the axial load in one direction is large.

Drawing

E-B70□□-DB
E-B72□□-DB

(Installation Diagram)

[ M ]Material: SUJ2 Equivalent
Bearing Accuracy: JIS B 1514 Class 5
Contact Angle: 25°

Specification

Order Example	Part Number	-	Double Row Combination
Order Example	E-B7000	-	DB

Part Number	Double Row Combination	d	D	B	Basic Load Rating		Allowable Rotational Speed rpm (Reference)		r (min)	r₁ (min)	Pressure Cone Apex a	Mounting Dimensions				Mass
					Basic Load Rating		Allowable Rotational Speed rpm (Reference)					Ds	dh	R	R₁	(g)
					Cr (Dynamic) kN	Cor (Static) kN	Grease	Oil Lubrication				(min.)	(max.)	(max.)	(max.)	(Reference)
E−B7000	DB	10	26	8	8.1	4.65	27000	34000	0.3	0.15	18.4	12.5	24.8	0.3	(0.15)	42
E−B7200	(Back)	10	30	9	7.55	4.4	23000	29000	0.6	0.3	20.5	15	27.5	0.6	(0.3)	62
E−B7001		12	28	8	8.8	5.45	23000	29000	0.3	0.15	19.5	14.5	26.8	0.3	(0.15)	48
E−B7201		12	32	10	12.1	7.25	22000	27000	0.6	0.3	22.7	17	29.5	0.6	(0.3)	76
E−B7002		15	32	9	9.95	6.85	20000	26000	0.3	0.15	22.6	17.5	30.8	0.3	(0.15)	70
E−B7202		15	35	11	13.2	8.55	19000	24000	0.6	0.3	25.4	20	32.5	0.6	(0.3)	96
E−B7003		17	35	10	10.9	8.25	18000	23000	0.3	0.15	25	19.5	33.8	0.3	(0.15)	90
E−B7203		17	40	12	16.5	11	17000	21000	0.6	0.3	28.5	22	37.5	0.6	(0.3)	140
E−B7004		20	42	12	16.7	12.2	15000	19000	0.6	0.3	29.9	25	39.5	0.6	(0.3)	158
E−B7204		20	47	14	23.5	16.8	14000	17000	1	0.6	33.3	26	42	1	(0.6)	224
E−B7005		25	47	12	18.3	14.8	13000	17000	0.6	0.3	32.8	30	44.5	0.6	(0.3)	182
E−B7205		25	52	15	24.9	19	12000	15000	1	0.6	37.2	31	47	1	(0.6)	270
E−B7006		30	55	13	23.6	20.2	11000	14000			37.5	6	50			266
E−B7206		30	62	16	34.7	27.4	10000	13000			42.6	36	57			416
E−B7007		35	62	14	28.4	25.2	9800	12000	(1)	(0.6)	(42)	(41)	(57)	(1)		340
E−B7207		35	72	17	45.7	37.3	8800	11000	1.1	0.6	47.9	42	67	1		590
E−B7008		40	68	15	30.4	29.2	8900	11000	(1)	(0.6)	(46.2)	(46)	(63)	(1)		420
E−B7208		40	80	18	54.6	46.7	8000	10000	1.1	0.6	52.6	47	75	1		764
E−B7009		45	75	16	36.2	35.4	8000	10000	(1)	(0.6)	(50.6)	(51)	(70)	(1)		520
E−B7209		45	85	19	61.3	53.2	7500	9400	1.1	0.6	56.5	52	80	1		860
E−B7010		50	80	16	38.4	40.2	7300	9200	(1)	(0.6)	(53.5)	(56)	(75)	(1)		580
E−B7210		50	90	20	64	58.7	6800	8500	1.1	0.6	60.4	57	85	1		970
E−B7011		55	90	18	50.5	52.5	6600	8300	(1.1)	(0.6)	(59.9)	(62)	(85)	(1)		840
E−B7211		55	100	21	79.1	74.2	6100	7600	(1.5)	(1)	(65.7)	(64)	(94)	(1.5)	(1)	1270
E−B7012		60	95	18	51.8	56.1	6200	7700	(1.1)	(0.6)	(62.7)	(67)	(90)	(1)	(0.6)	900
E−B7212		60	110	22	95.7	91.5	5500	6900	(1.5)	(1)	(71.1)	(69)	(104)	(1.5)	(1)	1640
E−B7013		65	100	18	54.7	62.8	5800	7200	(1.1)	(0.6)	(65.5)	(72)	(95)	(1)	(0.6)	940
E−B7213		65	120	23	109	108	5200	6400	(1.5)	(1)	(76.4)	(74)	(114)	(1.5)	(1)	2040
E−B7014		70	110	20	69.3	78.7	5300	6600	(1.1)	(0.6)	(72)	(77)	(105)	(1)	(0.6)	1320
E−B7214		70	125	24	113	111	4900	6100	(1.5)	(1)	(80.3)	(79)	(119)	(1.5)	(1)	2240
E−B7015		75	115	20	70.9	83.4	5000	6300	(1.1)	(0.6)	(74.8)	(82)	(110)	(1)	(0.6)	1380
E−B7215		75	130	25	129	130	4600	5800	(1.5)	(1)	(84.2)	(84)	(124)	(1.5)	(1)	2460
E−B7016		80	125	22	86.7	101	4600	5800	(1.1)	(0.6)	(81.2)	(87)	(120)	(1)	(0.6)	1860
E−B7216		80	140	26	139	143	4300	5400	(2)	(1)	(89.5)	(90)	(134)	(2)	(1)	3000
E−B7017		85	130	22	88.6	107	4400	5500	(1.1)	(0.6)	(84.1)	(92)	(125)	(1)	(0.6)	1940
E−B7217		85	150	28	160	167	4000	5000	(2)	(1)	(95.8)	(95)	(144)	(2)	(1)	3740
E−B7018		90	140	24	106	127	4100	5100	(1.5)		(90.4)	(99)	(134)	(1.5)		2520
E−B7218		90	160	30	183	193	3800	4700	(2)		(102.2)	(100)	(154)	(2)		4600
E−B7019		95	145	24	108	134	3900	4800	(1.5)		(93.3)	(104)	(139)	(1.5)		2640
E−B7219		95	170	32	198	207	3500	4400	(2.1)	(1.1)	(108.5)	(107)	(163)	(2)		5560
E−B7020		100	150	24	111	141	3800	4700	(1.5)	(1)	(96.2)	(109)	(144)	(1.5)		2740
E−B7220		100	180	34	223	235	3300	4100	(2.1)	(1.1)	(114.8)	(112)	(173)	(2)		6640

Technical Information

Inner and Outer Dimension Tolerance (JIS B 1514 Class 5)

d Inner Diameter Tolerance

ｄ (mm)		Inner Diameter Tolerance (mm)

Over	or Less
0.6	2.5	0
		-0.005
2.5	10	0
		-0.005
10	18	0
		-0.005
18	30	0
		-0.006
30	50	0
		-0.008
50	80	0
		-0.009

D Outer Diameter Tolerance

D (mm)		Outer Diameter Tolerance (mm)

Over	or Less
2.5	6	0
		-0.005
6	18	0
		-0.005
18	30	0
		-0.006
30	50	0
		-0.007
50	80	0
		-0.009
80	120	0
		-0.01

Cautions/Prohibitions

If the shaft and housing have poor precision, the bearing may not be able to perform as it should. For example, if the accuracy of the bearing mounting part is poor, this may cause the inner and outer rings to tilt. In this case, in addition to the load applied to the bearing, a peripheral stress centralized load (Edge Load) is also applied, which not only reduces the fatigue life of the bearing, but in severe cases can cause damage such as breakage and seizure of the retainer.

*Please use the following dedicated installation tools to install and remove bearings.

Bearing Heater
ベアリングヒーター

Correct installation of bearing heaters will extend the life of the bearings.
When properly installed and maintained, rolling bearings are reliable mechanical components with a long service life.
If you use an induction heater, the bearing will expand outward in the cylindrical direction after heating, preventing damage during installation.
Heating with induction heaters is the most scientific heating method and does not require preheating and can reach up to 110°C within seconds or minutes depending on the weight of the bearing,
without adversely affecting pre-applied lubrication.

Bearing Puller
ベアリングプーラー

If the bearing is installed in the following conditions, it can be removed using a dedicated puller.
(a) Shaft Shape: Cylindrical Shaft, Bearing Inner Ring I.D. Shape: Cylindrical hole.
(b) Shaft Shape: Cylindrical Shaft, Shape of inner ring I.D. of bearing using adapter sleeve: Positive shaft body hole.
(c) Shaft Shape: Positive shaft body, Shape of inner ring I.D. of bearing: Positive shaft body hole. No matter how it is installed, be sure to unlock the lock nut on the shaft (or the lock nut on the adapter sleeve) and loosen it before removing it.

Part Number

CAD Data download and 3D preview are not available because the part number has not yet been determined.

*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

CAD Download

: 30; 45; 60

Part Number
E-B7012-DB

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Inner Dia. d (Ø)	Outer Dia. D (Ø)	Width B (or T) (mm)	Basic Load Rating Cr (Dynamic) (N)	Allowable Rotational Speed (rpm)	Basic Load Rating Cor (Static) (N)	Weight (g)
	MYR 171.74	1 Piece(s)	Available	36 Day(s)	60	95	18	51800	6200	56100	900

Basic Information

Raceway Ring Shape	Angular Bearing (Double)	Bearing Type	Open	Outer Ring Type	Flat
Inner/Outer Ring Material	SUJ2 Equiv.	Specifications, Environment	Standard	Precision (JIS)	Class 5
Load Direction	Radial / Thrust Load, Axial	Rolling Element Material	SUJ2 Equiv.	Size Standards	Metric System
Number of Raceway Ring Rows	Double Row

Please check the type/dimensions/specifications of the part E-B7012-DB in the Angular Contact Ball Bearings Double Row DB Combination series.

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Completed

Specification/Dimensions

type
- E-B7□□□-DB
Clear
Inner Dia. d(Ø)
10

12

15

17

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100
Clear
Outer Dia. D(Ø)
26

28

30

32

35

40

42

47

52

55

62

68

72

75

80

85

90

95

100

110

115

120

125

130

140

145

150

160

170

180
Clear
Width B (or T)(mm)
8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

28

30

32

34
Clear
Basic Load Rating Cr (Dynamic)(N)
7550

8100

8800

9950

10900

12100

13200

16500

16700

18300

23500

23600

24900

28400

30400

34700

36200

38400

45700

50500

51800

54600

54700

61300

64000

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70900

79100

86700

88600

95700

106000

108000

109000

111000

113000

129000

139000

160000

183000

198000

223000
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

1 Day(s) or Less

6 Day(s) or Less

10 Day(s) or Less

36 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What is the difference between ball bearing and roller bearing?: Answer: The contact between ball bearing and raceway is point contact, and the contact surface is oval when stressed. Because of the point contact, resisting force value is small, and the ball bearing is suitable for the application conditions of low torque and high rotational speed. They also have the characteristics of low noise. Ball bearings have low loading capacity but can bear radial and axial loads. The contact between roller bearing and raceway is line contact, and the contact surface is square when stressed. Because of the line contact, the torque of roller bearing is higher than that of ball bearing, and its rigidity is higher. Roller bearings have higher loading capacity, and cylindrical roller bearings have retaining edges to bear slight axial loads.
Question: What is the classification of bearings according to the shape of rolling elements?: Answer: Rolling bearings are mainly divided into: ball bearings and roller bearings. Among them, ball bearings are divided into: deep groove ball bearings, angular contact bearings and radial thrust ball bearings. Roller bearings are divided into: cylindrical roller bearings, needle bearings, cone roller bearings and self-aligning roller bearings.
Question: What is the classification of bearings according to load direction?: Answer: Bearing are divided into: radial bearings and thrust bearings according to the load direction. Among them, radial bearings are divided into: radial thrust ball bearings and radial roller bearings. Thrust bearings are divided into: thrust ball bearings and thrust roller bearings.
Question: What is the basic rated life of rolling bearings?: Answer: The basic rated life of rolling bearings refers to the total number of revolutions that 90% of the ball bearings can rotate without peeling when eleven groups of ball bearings of the same kind and specification rotate respectively under the same conditions.
Question: What is the contact angle of this angular contact ball bearing?: Answer: The contact angle of this angular contact ball bearing is 25 degrees, and the domestic common usage rate is relatively high.

Check other FAQ (2 items) Hide

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E-B7003-DB
E-B7004-DB
E-B7005-DB
E-B7013-DB
E-B7014-DB
E-B7015-DB

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Inner Dia. d (Ø)	Outer Dia. D (Ø)	Width B (or T) (mm)	Basic Load Rating Cr (Dynamic) (N)	Allowable Rotational Speed (rpm)	Basic Load Rating Cor (Static) (N)	Weight (g)
MYR 53.02	1 Piece(s)	Available	1 Day(s)	17	35	10	10900	18000	8250	90
MYR 56.38	1 Piece(s)	Available	1 Day(s)	20	42	12	16700	15000	12200	158
MYR 67.18	1 Piece(s)	Available	1 Day(s)	25	47	12	18300	13000	14800	182
MYR 187.66	1 Piece(s)	Available	36 Day(s)	65	100	18	54700	5800	62800	940
MYR 222.08	1 Piece(s)	Available	36 Day(s)	70	110	20	69300	5300	78700	1320
MYR 242.14	1 Piece(s)	Available	36 Day(s)	75	115	20	70900	5000	83400	1380

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Angular Contact Ball Bearings Double Row DB Combination (E-B7012-DB)

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Inner Dia. d(Ø)

Outer Dia. D(Ø)

Width B (or T)(mm)

Basic Load Rating Cr (Dynamic)(N)

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