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Part Number Complete

N308ET2X

Shaft Bore Config. type Inner Dia. d Outer Dia. D Width B Precision (JIS) Specifications/Environment Internal Clearance Symbol Format symbol Holder Symbol Symbol of Bearing Ring Shape Revolution Frequency Outer ring oil hole Large-capacity type Cylinder shape (suffix symbol: X) CAD Days to Ship

Specification/Dimensions

Shaft Bore Config.
- Cylindrical Bore
Clear
type
- N
- NF
- NJ
- NU
- NUP
Clear
Inner Dia. d(Ø)
20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

105

110

120

130

140

150

170

180

260

280
Clear
Outer Dia. D(Ø)
47

52

55

62

68

72

80

85

90

100

110

120

125

130

140

150

160

170

180

190

200

215

225

230

240

250

260

270

280

300

360

380

400

420
Clear
Width B(mm)
12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

39

40

41

42

43

45

46

47

48

49

50

51

53

55

58

60

62

65

68

75

86

102

120
Clear
Precision (JIS)
- Grade 0
- Grade 5
Clear
Specifications/Environment
- Standard
- For high Speed
Clear
Internal Clearance Symbol
C2 (Smaller than normal clearance)

C3 (Greater than normal clearance)

C4 (C3 Greater than gap)

CM

CN (Normal Clearance)

NA
Clear
Format symbol
N (double brims for the inner ring)

NF (one brim for the outer ring/double brims for the inner ring)

NJ (double brims for the outer ring/one brim for the inner ring)

NU (double brims for the outer ring)

NUP (Flange ring ring on the side of inner race where there is no flange)

NUP (equipped with a brim ring on the side without inner ring brim)
Clear
Holder Symbol
- G1 (high tensile brass square hole holder without)
- T2 (Resin Forming Holder)
- T2 (Resin molding retainer)
- NA
Clear
Symbol of Bearing Ring Shape
- No code: Cylindrical hole at inner diameter
- No symbol: Internal diameter cylinder hole
Clear
Revolution Frequency(rpm)
1500

1600

1700

2000

2300

2400

2500

2700

2900

3000

3100

3200

3300

3400

3500

3600

3700

3800

3900

4000

4100

4300

4400

4600

4700

4800

4900

5000

5100

5200

5300

5400

5500

5600

5700

5800

5900

6200

6300

6400

6500

6800

6900

7200

7300

7600

8000

8100

8300

8400

8500

8900

9300

9500

9700

11000

13000

14000

15000

16000
Clear
Outer ring oil hole
- M (with fitting nozzle for oil mist)
- Normal
Clear
Large-capacity type
- E (Large-capacity type)
- Normal
Clear
Cylinder shape (suffix symbol: X)
- NA
- X (cylinder outer diameter)
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

5 Day(s) or Less

7 Day(s) or Less

8 Day(s) or Less

9 Day(s) or Less

11 Day(s) or Less

12 Day(s) or Less
Clear

Specify Alterations

Cylindrical Roller Bearing (Radial) (N308ET2X)

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Brand :

NTN

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Total Price :

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Caution

The product images are representative only. See the product standards for details.
Product lines have gradually been shifting from conventional to ULTAGE (with higher load capacity and longer lifespan).
Only a part of the lineup is available at MISUMI. Please use the filtering criteria to confirm the details.
Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

Product Description

A bearing with a simple shape in which cylindrical rollers and a raceway are in linear contact.
[Features]
·Large load capacity primarily for receiving radial loads.
·The friction between the rolling elements and the flange of bearing ring is small making it ideal for high-speed rotation.
·Various options can be selected according to applications, such as flange on both inner and outer races, no flange, separable type, and axial load bearable.
[Application]
·For machine tools, motors, pumps, etc.

Features

●As the roller and the orbital plane are in line contact, it is a bearing that load capacity of the radial load is large.

Specification

●Seal: None
●Precision Grade: JIS B 1514 0 Grade
●Working Temperature Range: -25 to 120°C

Materials

●High Carbon Chromium Steel Bearing

: 30; 45; 60

Part Number
N308ET2X

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Inner Dia. d (Ø)	Outer Dia. D (Ø)	Width B (mm)	Precision (JIS)	Specifications/Environment	Basic Load Rating: Dynamic Load (N)	Internal Clearance Symbol	Shaft Bore Config.	Format symbol	Holder Symbol	Symbol of Bearing Ring Shape	Revolution Frequency (rpm)	Outer ring oil hole	Large-capacity type	Cylinder shape (suffix symbol: X)
	₹ 3,315.35	1 Piece(s)		11 Day(s) or more	10	40	90	23	Grade 0	Standard	83000	CN (Normal Clearance)	-	N (double brims for the inner ring)	T2 (Resin Forming Holder)	No symbol: Internal diameter cylinder hole	7200	Normal	E (Large-capacity type)	X (cylinder outer diameter)

Basic Information

Raceway Ring Shape	Cylindrical Roller	Load Direction	Radial	Inner/Outer Ring Material	Steel
Number of Raceway Ring Rows	Single Row	Rolling Element Material	Steel	Specifications	Normal
High-Speed Steel	Normal	Combination of two pieces	Normal

Please check the type/dimensions/specifications of the part N308ET2X in the Cylindrical Roller Bearing (Radial) series.

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

Product variants

Part Number
N210ET2X
N212ET2X
N213
N309ET2X
N310
N310EG1C3

Standard Unit Price	Minimum order quantity	Days to Ship	RoHS	Inner Dia. d (Ø)	Outer Dia. D (Ø)	Width B (mm)	Precision (JIS)	Specifications/Environment	Basic Load Rating: Dynamic Load (N)	Internal Clearance Symbol	Shaft Bore Config.	Format symbol	Holder Symbol	Symbol of Bearing Ring Shape	Revolution Frequency (rpm)	Outer ring oil hole	Large-capacity type	Cylinder shape (suffix symbol: X)
₹ 3,356.87	1 Piece(s)	11 Day(s) or more	10	50	90	20	Grade 0	Standard	66000	CN (Normal Clearance)	-	N (double brims for the inner ring)	T2 (Resin Forming Holder)	No symbol: Internal diameter cylinder hole	6900	Normal	E (Large-capacity type)	X (cylinder outer diameter)
₹ 4,507.42	1 Piece(s)	11 Day(s) or more	10	60	110	22	Grade 0	Standard	97500	CN (Normal Clearance)	-	N (double brims for the inner ring)	T2 (Resin Forming Holder)	No symbol: Internal diameter cylinder hole	5800	Normal	E (Large-capacity type)	X (cylinder outer diameter)
₹ 5,252.11	1 Piece(s)	8 Day(s) or more	10	65	120	23	Grade 0	Standard	84000	CN (Normal Clearance)	Cylindrical Bore	N (double brims for the inner ring)	NA	No symbol: Internal diameter cylinder hole	5900	Normal	Normal	NA
₹ 4,056.04	1 Piece(s)	11 Day(s) or more	10	45	100	25	Grade 0	Standard	97500	CN (Normal Clearance)	-	N (double brims for the inner ring)	T2 (Resin Forming Holder)	No symbol: Internal diameter cylinder hole	6500	Normal	E (Large-capacity type)	X (cylinder outer diameter)
₹ 4,631.98	1 Piece(s)	8 Day(s) or more	10	50	110	27	Grade 0	Standard	87000	CN (Normal Clearance)	Cylindrical Bore	N (double brims for the inner ring)	NA	No symbol: Internal diameter cylinder hole	6500	Normal	Normal	NA
₹ 6,887.51	1 Piece(s)	8 Day(s) or more	10	50	110	27	Grade 0	Standard	110000	C3 (Greater than normal clearance)	Cylindrical Bore	N (double brims for the inner ring)	G1 (high tensile brass square hole holder without)	No symbol: Internal diameter cylinder hole	5900	Normal	E (Large-capacity type)	NA

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