Tapered Roller Bearings 30248

30248

Bore Diameter:240 mm

Outside Diameter:440 mm

Width:79 mm

Weight:45.9 kg

The 30248 bearing is a Tapered Roller Bearings with an inner diameter of 240 mm , an outer diameter of 440 mm, a width of 79 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:

240 mm

Outside Diameter:

440 mm

Thickness:

79 mm

Weight:

45.9 KG

Specifications:

Structure:

tapered roller bearing

Precision Rating:

ABEC-5

Bearing Material:

Chrome Steel

Seals Type:

Open

Transaction Information:

Payment term:

Delivery time:

Stock

Item:Tapered Roller Bearing 30248

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 30248
main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

240 mm

440 mm

79 mm

75,5 mm

72 mm

60 mm

C_{a min}

10 mm

C_{b min}

19 mm

D_{a min}

383 mm

D_{b min}

410 mm

d₁

325 mm

d_{a max}

285 mm

d_{b min}

257 mm

r_{1, 2 min}

5 mm

r_{3, 4 min}

4 mm

r_{a max}

5 mm

r_{b max}

4 mm

45,9 kg

Mass

C_r

870000 N

Basic dynamic load rating, radial

C_0r

1260000 N

Basic static load rating, radial

0,36

1,68

Y₀

0,92

C_ur

126000 N

Fatigue limit load, radial

n_G

1640 1/min

Limiting speed

n_B

1120 1/min

Reference speed

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Tapered Roller Bearings 30248

Tapered Roller Bearings 30248

Tapered roller bearings 30248

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