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Angular Ball Bearing (7230)

Angular Ball Bearing 7230
  • On Sale Till 31/03/2025

NTN

NTN

Angular ball bearings that can receive a certain amount of axial (axial direction) load.
[Features]
・ The straight line connecting the contact points between the ball and the inner and outer rings has an angle with respect to the radial direction.
・ Radial load and unidirectional axial load can be applied.
・ When a radial load acts, an axial component force is generated, so 2 are generally used facing each other.
[Applications]
・ Ideal for machine tools, feed screw mechanisms, ball screw support units, etc.

  • STOCK

(i)Caution

  • The value in the "Width (mm)" column of the product specifications is the value for a single column even in the case of a combination of multiple columns. (Catalog B dimension)Please note that the width of the actual multi-row combination is twice the stated dimension (2B).

PDF

Part Number

Configured Part Number is shown.

7230

Drawing

Angular ball bearing, drawing
Angular ball bearing, drawing

Mounting dimensional drawing

Angular ball bearing, drawing

Mounting dimensional drawing

Product features details

Angular Ball Bearing Product Feature Details
This permissible rotational speed is the permissible rotational speed that can be achieved based on the following assumptions.
・ Using
under conditions where an appropriate amount of grease is sealed, and the heat generated by sufficient familiar operation, cooling of the outer cylinder, etc., is removed.
・ Use with constant pressure preload.

Type, structure and features of angular ball bearings

Angular ball bearings are non-separable bearings, and the straight line connecting the contact points between the ball and the inner and outer rings has a certain angle (contact angle) with respect to the radial direction. (Refer to Figure 1)The contact angle and contact angle symbol are shown in Table 1.
A radial load and a unidirectional axial load can be applied. Also, when a radial load acts, an axial component force is generated, so two are generally used facing each other. Table 2 shows the angular ball bearing,
Table 3 shows the combination angular ball bearings. For bearings with a contact angle of 15° and bearing accuracy of JIS 5 class or higher, refer to Precision Rolling Bearing (CAT. No. 2260/J).

Angular Ball Bearing Specifications 02

Angular Ball Bearing

Contact Angle15° 30° 40°
Symbol of contact angleC A1) B

*1) Contact angle symbol A is omitted.

Table 2 Classification and characteristics of angular ball bearings

ClassificationFeatures
Standard type・ The bearing series includes 79, 70, 72, 72B, 73 and 73B.
・ The contact angles are 30° and 40° (with B).
・ The standard retainer type depends on the bearing model number. (Please refer to Table 4)

Table 3 Combination type and features of combination angular ball bearings

Combination TypeFeatures
Back combination
(DB)		・ It can receive radial load and axial load in both directions.
・ Since the distance l between the working points of the bearing is large, the load capacity of the moment load is large.
・ The allowable tilt angle is small.
Front combination
(DF)		・ It can receive radial load and axial load in both directions.
・ The distance l between the working points of the bearing is small, and the load capacity of the moment load is small.
・ The permissible tilt angle is larger than the back combination.
Parallel combination
(DT)		・ It can receive radial load and unidirectional axial load.
・ Since 2 pieces receive an axial load, a large axial load can be received

Remarks 1. Since the bearings are manufactured as a set to adjust the internal clearance or preload amount of the bearings, bearings with the same product number must be used in combination.

Table 4 Standard retainer type for angular ball bearings

ClassificationBearing seriesResin molding retainerPressed retainerMachined retainer
Standard type79
70
72
73
72B
73B		7904 to 7913
7000 to 7024
―
―
―
―		―
―
7200 to 7222
7300 to 7322
7200B~7222B
7300B~7322B		7914 to 7960
7026 to 7040
7224 to 7240
7324 to 7340
7224B~7240B
7324B~7340B

Note: The resin molding retainer cannot be used at high temperatures exceeding 120°C due to its material properties.

30
45
60
  1. 1
Part Number
7230
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSInner Dia. d
(Ø) 		Outer Dia. D
(Ø) 		Width B
(mm) 		Raceway Ring Shape Bearing Type Outer Ring Type Inner/Outer Ring Material Basic Dynamic Load Rating
(N) 		Specifications/Environment Precision (JIS) Load Direction Rolling Element Material Size Standards Number of Raceway Ring Rows Max. Allowable Rotational Speed
(rpm) 		Combination of Angular Contact Ball Bearings Retainer Type Sealing Structure Types Ordering Code Contact angle symbol Combination symbol Preload Mark Accuracy Symbol Holder Symbol Internal change symbol

11,159,952 IDR

1 Piece(s) 15 Day(s) or more 1015027045Angular Bearing (Single)Open TypeFlatSteel232000StandardGrade 0Radial / ThrustSteelMetric SystemSingle Row2500-Momi removing-7*** series819-6254A-----

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  1. 1
 

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Specification/Dimensions

  • Load Direction

    • Radial
    • Thrust

    Clear

  • Combination of Angular Contact Ball Bearings

    • Single Row
    • Back Combination
    • Front Combination
    • Tandem Arrangement

    Clear

  • Sealing Structure

    • No seal

    Clear

  • type

    • 70**
    • 72**
    • 73**
    • 79**
    • 79**U

    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
    • 105
    • 120
    • 130
    • 150
    • 160
    • 180

    Clear

  • Outer Dia. D(Ø)

    • 26
    • 28
    • 30
    • 32
    • 35
    • 37
    • 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
    • 190
    • 200
    • 215
    • 225
    • 230
    • 240
    • 260
    • 270
    • 280
    • 320

    Clear

  • Width B(mm)

    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
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    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
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    • 49
    • 50
    • 52
    • 54
    • 55
    • 58
    • 62
    • 64
    • 66
    • 68
    • 70
    • 78
    • 82
    • 86
    • 90
    • 94

    Clear

  • Raceway Ring Shape

    • Angular Bearing (Single)
    • Angular Contact Ball (Double Row)

    Clear

  • Bearing Type

    • Open Type

    Clear

  • Outer Ring Type

    • Flat

    Clear

  • Inner/Outer Ring Material

    • Steel

    Clear

  • Basic Dynamic Load Rating(N)

    • 5,100
    • 7,600
    • 8,300
    • 9,400
    • 9,700
    • 28,500
    • 33,500
    • 36,000
    • 36,500
    • 40,000
    • 41,500
    • 3660$8200
    • 4650
    • 5000
    • 5050
    • 5450
    • 5800
    • 7000
    • 7150
    • 7500
    • 7550
    • 7600
    • 8350
    • 8800
    • 9050
    • 9400
    • 9500
    • 10500
    • 10700
    • 11000
    • 11200
    • 11400
    • 11600
    • 12000
    • 12300
    • 12500
    • 13300
    • 13600
    • 13900
    • 14500
    • 14700
    • 14800
    • 15800
    • 15900
    • 16200
    • 17300
    • 17500
    • 18700
    • 18800
    • 19400
    • 20300
    • 20500
    • 21900
    • 22300
    • 22500
    • 23600
    • 23700
    • 24400
    • 25900
    • 26200
    • 26300
    • 26400
    • 26900
    • 27100
    • 28500
    • 29700
    • 30500
    • 31000
    • 32000
    • 33500
    • 35500
    • 36000
    • 36500
    • 37500
    • 38500
    • 39500
    • 40000
    • 41500
    • 42500
    • 43000
    • 43500
    • 45000
    • 46500
    • 48500
    • 49000
    • 50000
    • 50500
    • 51000
    • 52000
    • 53500
    • 54500
    • 55000
    • 56000
    • 57500
    • 58500
    • 59500
    • 61500
    • 63500
    • 64500
    • 65000
    • 67000
    • 68000
    • 68500
    • 69000
    • 69500
    • 70500
    • 71000
    • 71500
    • 73000
    • 74500
    • 76500
    • 79000
    • 79500
    • 80500
    • 83000
    • 86000
    • 86500
    • 89000
    • 90000
    • 95000
    • 98000
    • 100000
    • 102000
    • 103000
    • 107000
    • 114000
    • 121000
    • 124000
    • 125000
    • 128000
    • 130000
    • 135000
    • 139000
    • 146000
    • 155000
    • 156000
    • 159000
    • 165000
    • 166000
    • 167000
    • 171000
    • 177000
    • 183000
    • 186000
    • 190000
    • 196000
    • 202000
    • 203000
    • 207000
    • 212000
    • 219000
    • 225000
    • 232000
    • 233000
    • 236000
    • 239000
    • 250000
    • 258000
    • 272000
    • 276000
    • 277000
    • 297000
    • 310000

    Clear

  • Specifications/Environment

    • Standard

    Clear

  • Precision (JIS)

    • Grade 0
    • Grade 4
    • Grade 5

    Clear

  • Rolling Element Material

    • Steel

    Clear

  • Size Standards

    • Metric System

    Clear

  • Number of Raceway Ring Rows

    • Single Row
    • Double Row

    Clear

  • Retainer Type

    • Punching
    • Momi removing
    • Resin Forming

    Clear

  • Types

    • 7*** series
    • Bearing for the main shaft

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • Same day
    • 1 Day(s) or Less
    • 8 Day(s) or Less
    • 11 Day(s) or Less
    • 12 Day(s) or Less
    • 13 Day(s) or Less
    • 14 Day(s) or Less
    • 15 Day(s) or Less
    • 16 Day(s) or Less
    • 17 Day(s) or Less

    Clear

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