Tapered Roller Bearings 30208-A

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30208-A

Bore Diameter:40 mm

Outside Diameter:80 mm

Width:19.75 mm

Weight:0.435 kg

The 30208-A bearing is a Tapered Roller Bearings with an inner diameter of 40 mm , an outer diameter of 80 mm, a width of 19.75 mm. It typically uses ABEC-5 grade precision tolerances and Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

40 mm

Outside Diameter:

80 mm

Thickness:

19.75 mm

Weight:

0.435 KG

Specifications:

Structure:

tapered roller bearing

Precision Rating:

ABEC-5

Bearing Material:

Chrome Steel

Seals Type:

Open

Transaction Information:

Payment term:

Delivery time:

Stock

Detailed description

Item:Tapered Roller Bearing 30208-A

1)ISO 9001:2008 approved

2)long life and low noise

3)OEM service

4)stocks

Specifications

Material :GCr15/GCr15SiMn / G20Gr2Ni4A
Hardness :HRC60-HRC64
Closures :Unsealed/Sealed Grade : P5

Clearance :C0, C3, C4

Lubrication :Oil or grease
Features: These bearings are featured by the extremely big axial load carrying capacity and meanwhile they can also carry certain radial load

Packing :
1. For small ones: Anti-rust oil+ plastic bag+ paper box+ wooden box
2. For big ones: Anti-rust oil+ waterproof belt+ professional belt +wooden box

Application :Steel industry, oil industry, cement industry, mining & construction, papermaking machinery, rolling mill, sugar mill, vibrating screens, conveyors, air blower, transmissions, and other heavy machinery

Tapered roller bearings 30208-A
main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

40 mm

80 mm

19,75 mm

17 mm

18 mm

16 mm

C_{a min}

3 mm

C_{b min}

3,5 mm

D_{a max}

73 mm

D_{a min}

69 mm

D_{b min}

74 mm

d₁

58,4 mm

d_{a max}

49 mm

d_{b min}

47 mm

r_{1, 2 min}

1,5 mm

r_{3, 4 min}

1,5 mm

r_{a max}

1,5 mm

r_{b max}

1,5 mm

0,435 kg

Mass

C_r

61000 N

Basic dynamic load rating, radial

C_0r

67000 N

Basic static load rating, radial

0,37

1,6

Y₀

0,88

C_ur

7600 N

Fatigue limit load, radial

n_G

9600 1/min

Limiting speed

n_B

5900 1/min

Reference speed

T3DB040

Comparative designation to DIN ISO 355

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