Tapered Roller Bearings 30328

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Min. Order:

1 Piece

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Delivery time:

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Technical Parameters:

Product Designations:

30328

Structure:

tapered roller bearing

Inside Diameter:

140 mm

Outside Diameter:

300 mm

Thickness:

67.75 mm

Weight:

20.4 KG

Precision Rating:

ABEC-5

Bearing Material:

Chrome Steel

Seals Type:

Open

Item:Tapered Roller Bearing 30328

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 30328
main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

140 mm

300 mm

67,75 mm

52 mm

62 mm

53 mm

C_{a min}

8 mm

C_{b min}

14,5 mm

D_{a max}

282 mm

D_{a min}

255 mm

D_{b min}

273 mm

d₁

206 mm

d_{a max}

176 mm

d_{b min}

158 mm

r_{1, 2 min}

5 mm

r_{3, 4 min}

4 mm

r_{a max}

5 mm

r_{b max}

4 mm

20,4 kg

Mass

C_r

580000 N

Basic dynamic load rating, radial

C_0r

730000 N

Basic static load rating, radial

0,28

2,18

Y₀

1,2

C_ur

83000 N

Fatigue limit load, radial

n_G

2500 1/min

Limiting speed

n_B

1980 1/min

Reference speed

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