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Angular Contact Bearing, Ultra Thin Wall, Two-Row Combination DB Type (E-B7810-DB)

Volume Discount

MISUMI

MiSUMi Economy

MISUMI

This is an economy item, The price is cheaper than the MISUMI standard product.

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Part Number

Configured Part Number is shown.

E-B7810-DB

Drawing/Specifications
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Part Numbers

Product Overview

· Angular contact ball bearings are mainly used to withstand radial loads and can also withstand small axial loads.
· Angular contact ball bearings are widely used in precision CNC machine tools, high-speed grinding machines, engraving machines, high-speed spindles, RV reducers, and other industries.

Dimensional Drawing

Economy Type Angular Contact Ball Bearing, Double Row Combination DB Type

Product Dimensions
Product Model:

E-B70□□-DB
E-B72□□-DB

Material	Bearing Precision	Contact Angle	Vibration Class
Equivalent to SUJ2	P5 Grade	25°	V1

Specification Table

Part Number		Dimensions (mm)			Rated Load (kN)		Rotational Speed Limit (rpm)		r (min)	r1 (min)	Point of Action a	Mounting Dimensions			Weight (kg)
Type	Bearing Part Number	Inner Diameter d	Outer Diameter D	Width B	Cr	Cor	Grease Lubrication	Oil Lubricated	r (min)	r1 (min)	Point of Action a	Ds (min.)	dh (max.)	R (max.)	Weight (kg)
E-B	7803-DB	17	26	5	3.58	3	33600	52500	0.3	0.15	15	19	24	0.3	0.016
	7804-DB	20	32	7	5.85	5	28000	44100	0.3	0.15	19.2	22	30	0.3	0.036
	7805-DB	25	37	7	6.34	6	23800	37100	0.3	0.15	21.6	27	35	0.3	0.044
	7806-DB	30	42	7	6.66	7	19600	31500	0.3	0.15	23.8	32	40	0.3	0.05
	7807-DB	35	47	7	6.99	8	18200	28000	0.3	0.15	26.2	37	45	0.3	0.058
	7808-DB	40	52	7	6.50	9	15400	23800	0.3	0.15	28.6	42	50	0.3	0.064
	7809-DB	45	58	7	7.48	10	14000	21000	0.3	0.15	31	47	56	0.3	0.080
	7810-DB	50	65	7	11.05	14.6	12600	19600	0.3	0.15	33.8	52	63	0.3	0.104
	7811-DB	55	72	9	15.44	20.4	11200	16800	0.3	0.15	38.6	57	70	0.3	0.162
	7812-DB	60	78	10	20.64	26.8	10500	15400	0.3	0.15	42.2	62	76	0.3	0.200
	7813-DB	65	85	10	20.64	28	9100	14000	0.6	0.3	45	68.2	81.8	0.6	0.25
	7814-DB	70	90	10	21.13	30	9100	13300	0.6	0.3	47.4	73.2	86.8	0.6	0.266
	7815-DB	75	95	10	21.61	32	8400	12600	0.6	0.3	49.8	78.2	91.8	0.6	0.284
	7816-DB	80	100	10	22.43	34	7700	11900	0.6	0.3	52	83.2	96.8	0.6	0.3
	7817-DB	85	110	13	32.99	48	7000	11200	1	0.3	58.6	89.6	105.4	1	0.524
	7818-DB	90	115	13	32.99	50.0	7000	10500	1	0.3	61	94.6	110.4	1	0.548
	7819-DB	95	120	13	33.80	51	6650	9800	1	0.3	63.2	99.6	115.4	1	0.574
	7820-DB	100	125	13	34.45	55.0	5950	9100	1	0.3	65.6	104.6	120.4	1	0.602
	7821-DB	105	130	13	35.10	57	5600	8400	1	0.3	68	109.6	125.4	1	0.628
	7822-DB	110	140	16	49.08	76.0	5250	8400	1	0.3	74.4	114.6	135.4	1	0.992

Dimensions in parentheses are for reference only. Please refer to the actual product dimensions.

Product Features

· The product's precision reaches P5 grade; the precision grade directly affects its operation and service life.
· Making full use of the features of angular contact bearings means longer service life, reduced energy consumption, increased rigidity and speed, and lower maintenance costs.

Precautions

When the precision of the shaft and bearing housing is poor, the bearing will be affected, and its due performance will not be exerted. For example, the poor precision of the mounting part with the bearing will cause relative inclination of the inner and outer rings. At this time, besides the bearing load, the edge load will be increased additionally, which will shorten the fatigue life of the bearing, and even more seriously, it will lead to damage such as cage breakage and sticking.

Please use the following special mounting tool for installation and removal

Bearing heater
	Proper installation of the bearing heater can guarantee a long life of the bearing. Rolling bearings are reliable mechanical components with long service life if they are installed and maintained correctly. After the induction heater is used for heating, the bearing expands outward in the cylindrical direction, which can avoid the damage during installation. Induction heater is one of the most scientific heating methods, which does not need preheating, and can be heated to 110℃ in a few seconds or minutes depending on the weight of bearings, without damaging the prior lubrication

Bearing puller
	When the installation state of the bearing is in the following situations, the special puller can be used for disassembly. (a) Shaft shape: cylindrical shaft, Inner diameter shape of bearing inner ring: cylindrical hole. (b) Shaft shape: cylindrical shaft, inner diameter shape of bearing inner ring with tight bushing: tapered hole. (c) Shaft shape: tapered shaft, Inner diameter shape of bearing inner ring: tapered hole. In either state, the lock nut of the shaft (or the lock nut of the tight bushing) must be released during disassembly, and the lock nut must be placed in a loose state.

Example of Use

Part Number

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*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-B7810-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 370.04	2 Piece(s)	Available	13 Day(s)	50	65	7	11050	12600	14600	104

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	Steel	Size Standards	Metric System
Number of Raceway Ring Rows	Double Row	Combination of Angular Contact Ball Bearings	Back-to-Back Combination

Please check the type/dimensions/specifications of the part E-B7810-DB in the Angular Contact Bearing, Ultra Thin Wall, Two-Row Combination DB Type series.

Configure

1 Part Numbers

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Completed

Specification/Dimensions

type
- E-B7□□□-DB
Clear
Inner Dia. d(Ø)
17

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

105

110
Clear
Outer Dia. D(Ø)
26

32

37

42

47

52

58

65

72

78

85

90

95

100

110

115

120

125

130

140
Clear
Width B (or T)(mm)
5

7

9

10

13

16
Clear
Basic Load Rating Cr (Dynamic)(N)
3575

5850

6337.5

6500

6662.5

6987.5

7475

11050

15437.5

20637.5

21125

21612.5

22425

32987.5

33800

34450

35100

49075
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

13 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 .

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E-B7806-DB
E-B7807-DB
E-B7808-DB
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E-B7813-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 255.04	2 Piece(s)	Available	13 Day(s)	30	42	7	6662.5	19600	7000	50
MYR 292.00	2 Piece(s)	Available	13 Day(s)	35	47	7	6987.5	18200	8000	58
MYR 304.32	2 Piece(s)	Available	13 Day(s)	40	52	7	6500	15400	9000	64
MYR 394.30	2 Piece(s)	Available	13 Day(s)	55	72	9	15437.5	11200	20400	162
MYR 411.08	2 Piece(s)	Available	13 Day(s)	60	78	10	20637.5	10500	26800	200
MYR 452.16	2 Piece(s)	Available	13 Day(s)	65	85	10	20637.5	9100	28000	250

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Angular Contact Bearing, Ultra Thin Wall, Two-Row Combination DB Type (E-B7810-DB)

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Outer Dia. D(Ø)

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