What is the difference between ball bearing and roller bearing?

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.

What is the classification of bearings according to the shape of rolling elements?

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.

What is the classification of bearings according to load direction?

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.

What is the basic rated life of rolling bearings?

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.

What is the contact angle of this angular contact ball bearing?

The contact angle of this angular contact ball bearing is 25 degrees, and the domestic common usage rate is relatively high.

Is the universal pairing a single or a double one? What is the accuracy grade?

The universal pairing type is sold individually and the accuracy grade reaches P4 grade.

Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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E-B7202SU

type Inner Dia. d Outer Dia. D Width B (or T) Basic Load Rating Cr (Dynamic) CAD Days to Ship

Specification/Dimensions

type
- E-B7□□□SU
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)
4650

5000

5400

6100

6750

7450

8100

10200

10300

11300

14500

15300

17500

18700

21300

22200

23600

28100

31100

31900

33600

33700

37700

39400

42700

43600

48700

53400

54600

58900

65200

66600

67300

68400

69800

79200

85300

98600

113000

122000

137000
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day
Clear

Specify Alterations

Angular Contact Ball Bearings Single Row Universal Combination (E-B7202SU)

Volume Discount

Check FAQ of this product (6 items)

Brand :

MiSUMi Economy

Order Qty :
Total Price :

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Days to ship :

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Product Description

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Features

· Because angular contact ball bearings have a contact angle, back-to-back combinations (DB combinations) and face-to-face combinations (DF 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.
· Suitable for applications that require high accuracy and high speed rotation, such as machine tool spindles and grinding spindles.

Drawing

E-B70□□SU
E-B72□□SU

(Installation Diagram)

[ M ]Material: SUJ2 Equivalent
Bearing Accuracy: JIS B 1514 Class 4
Contact Angle: 25°

[ ! ]Sold in pieces.

[ ! ]When using multiple row combination,
it is recommended to match inner and outer dimensions.

Outer Ring Outer Diameter Pair Variation

Inner Ring Inner
Diameter Pair Variation

In case of making up random matching combinations,
it is recommended to observe the mutual diametric variations.

Specification

Order Example	Part Number
	E-B7000SU

Part Number	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	(g)
				Cr (Dynamic) kN	Cor (Static) kN	Grease	Oil Lubrication				(min.)	(max.)	(max.)	(Reference)
E−B7000SU	10	26	8	5	2.35	34000	42000	0.3	0.15	6.4	12.5	23.5	0.3	21
E−B7200SU	10	30	9	4.65	2.2	29000	37000	－	－	－	－	－	－	31
E−B7001SU	12	28	8	5.4	2.75	19000	37000	0.3	0.15	6.7	14.5	25.5	0.3	24
E−B7201SU	12	32	10	7.45	3.65	27000	34000	－	－	－	－	－	－	38
E−B7002SU	15	32	9	6.1	3.45	26000	32000	0.3	0.15	7.6	17.5	29.5	0.3	35
E−B7202SU	15	35	11	8.1	4.25	24000	29000	－	－	－	－	－	－	48
E−B7003SU	17	35	10	6.75	4.15	23000	28000	0.3	0.15	8.5	19.5	32.5	0.3	45
E−B7203SU	17	40	12	10.2	5.5	21000	26000	－	－	－	－	－	－	70
E−B7004SU	20	42	12	10.3	6.1	19000	24000	0.6	0.3	10.1	25	37	0.6	79
E−B7204SU	20	47	14	14.5	8.4	17000	22000	－	－	－	－	－	－	112
E−B7005SU	25	47	12	11.3	7.4	17000	21000	0.6	0.3	10.8	30	42	0.6	91
E−B7205SU	25	52	15	15.3	9.5	15000	19000	－	－	－	－	－	－	135
E−B7006SU	30	55	13	14.5	10.1	14000	18000	1	0.6	12.2	36	49	1	133
E−B7206SU	30	62	16	21.3	13.7	13000	16000	－	－	－	－	－	－	208
E−B7207SU	35	72	17	28.1	18.6	11000	14000	－	－	－	－	－	－	295
E−B7007SU	35	62	14	17.5	12.6	12000	15000	1	0.6	13.5	41	56	1	170
E−B7208SU	40	80	18	33.6	23.3	10000	12000	－	－	－	－	－	－	382
E−B7008SU	40	68	15	18.7	14.6	11000	14000	1	0.6	14.7	46	62	1	210
E−B7209SU	45	85	19	37.7	26.6	9400	12000	－	－	－	－	－	－	430
E−B7009SU	45	75	16	22.2	17.7	10000	12000	1	0.6	16	51	69	1	260
E−B7210SU	50	90	20	39.4	41.3	8500	11000	－	－	－	－	－	－	485
E−B7010SU	50	80	16	23.6	20.1	9200	11000	1	0.6	16.7	56	74	1	290
E−B7211SU	55	100	21	48.7	37.1	7600	9500	－	－	－	－	－	－	635
E−B7011SU	55	90	18	31.1	26.3	8300	10000							420
E−B7212SU	60	110	22	58.9	45.7	6900	8600							820
E−B7012SU	60	95	18	31.9	28.1	7700	9700							450
E−B7213SU	65	120	23	67.3	54.2	6400	8000							1020
E−B7013SU	65	100	18	33.7	31.4	7200	9000							470
E−B7214SU	70	125	24	69.8	55.6	6100	7600							1120
E−B7014SU	70	110	20	42.7	39.4	6600	8300							660
E−B7215SU	75	130	25	79.2	65.2	5800	7200							1023
E−B7015SU	75	115	20	43.6	41.7	6300	7800							690
E−B7216SU	80	140	26	85.3	71.5	5400	6700							1500
E−B7016SU	80	125	22	53.4	50.6	5800	7200							930
E−B7217SU	85	150	28	98.6	83.6	5000	6300							1870
E−B7017SU	85	130	22	54.6	53.7	5500	6800							970
E−B7218SU	90	160	30	113	96.7	4700	5900							2300
E−B7018SU	90	140	24	65.2	63.3	5100	6400							1260
E−B7219SU	95	170	32	122	103	4400	5500							2780
E−B7019SU	95	145	24	66.6	67.1	4800	6000							1320
E−B7220SU	100	180	34	137	117	4100	5200							3320
E−B7020SU	100	150	24	68.4	70.6	4700	5900							1370

Technical Information

Inner and Outer Dimension Tolerance (JIS B 1514 Class 4)

d Inner Diameter Tolerance

ｄ (mm)		Inner Diameter Tolerance (mm)

Over	or Less
0.6	2.5	0
		-0.004
2.5	10	0
		-0.004
10	18	0
		-0.004
18	30	0
		-0.005
30	50	0
		-0.006
50	80	0
		-0.007

D Outer Diameter Tolerance

D (mm)		Outer Diameter Tolerance (mm)

Over	or Less
2.5	6	0
		-0.004
6	18	0
		-0.004
18	30	0
		-0.005
30	50	0
		-0.006
50	80	0
		-0.007
80	120	0
		-0.008

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

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
E-B7202SU

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	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)
	₹ 682.00	1 Piece(s)	Available	Same day	10	15	35	11	8100	24000	4250	48

Basic Information

Raceway Ring Shape	Angular Bearing (Single)	Bearing Type	Open	Outer Ring Type	Flat
Inner/Outer Ring Material	SUJ2 Equiv.	Specifications, Environment	Standard	Precision (JIS)	Class 4
Load Direction	Radial / Thrust Load, Axial	Rolling Element Material	SUJ2 Equiv.	Size Standards	Metric System
Number of Raceway Ring Rows	Single Row

Please check the type/dimensions/specifications of the part E-B7202SU in the Angular Contact Ball Bearings Single Row Universal Combination series.

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.
Question: Is the universal pairing a single or a double one? What is the accuracy grade?: Answer: The universal pairing type is sold individually and the accuracy grade reaches P4 grade.

Check other FAQ (3 items) Hide

Product variants

Part Number
E-B7003SU
E-B7004SU
E-B7005SU
E-B7203SU
E-B7204SU
E-B7205SU

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	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)
₹ 708.00	1 Piece(s)	Available	Same day Stock	10	17	35	10	6750	23000	4150	45
₹ 747.00	1 Piece(s)	Available	Same day Stock	10	20	42	12	10300	19000	6100	79
₹ 853.00	1 Piece(s)	Available	Same day Stock	10	25	47	12	11300	17000	7400	91
₹ 745.00	1 Piece(s)	Available	Same day Stock	10	17	40	12	10200	21000	5500	70
₹ 833.00	1 Piece(s)	Available	Same day Stock	10	20	47	14	14500	17000	8400	112
₹ 890.00	1 Piece(s)	Available	Same day Stock	10	25	52	15	15300	15000	9500	135

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