Tapered Roller Bearings 30304-A

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30304-A

Bore Diameter:20 mm

Outside Diameter:52 mm

Width:16.25 mm

Weight:0.188 kg

The 30304-A bearing is a Tapered Roller Bearings with an inner diameter of 20 mm , an outer diameter of 52 mm, a width of 16.25 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:

20 mm

Outside Diameter:

52 mm

Thickness:

16.25 mm

Weight:

0.188 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 30304-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 30304-A
main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

20 mm

52 mm

16,25 mm

11 mm

15 mm

13 mm

C_{a min}

2 mm

C_{b min}

3 mm

D_{a max}

45 mm

D_{a min}

44 mm

D_{b min}

47 mm

d₁

36,1 mm

d_{a max}

28 mm

d_{b min}

27 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

0,188 kg

Mass

C_r

34000 N

Basic dynamic load rating, radial

C_0r

32500 N

Basic static load rating, radial

0,3

Y₀

1,1

C_ur

3600 N

Fatigue limit load, radial

n_G

15600 1/min

Limiting speed

n_B

9800 1/min

Reference speed

T2FB020

Comparative designation to DIN ISO 355

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