B7028-E-T-P4S Spindle Bearings

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Min. Order:

1 Piece

Payment term:

Delivery time:

Stcok

Technical Parameters:

Product Designations:

B7028-E-T-P4S

Structure:

spindle bearing

Inside Diameter:

140 mm

Outside Diameter:

210 mm

Thickness:

33 mm

Weight:

1 KG

Precision Rating:

ABEC-5

Bearing Material:

Chorme Steel

Seals Type:

Open,ZZ,2RS

Item:Spindle Bearing B7028-E-T-P4S

1)ISO 9001:2008 approved B7028-E-T-P4S

2)long life and low noise

3)OEM service

4)stocks

Specifications

Model: B7028-E-T-P4S
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.

Spindle bearings B7028-E-T-P4S

adjusted, in pairs or sets, contact angle α = 25°, restricted tolerances

140 mm

210 mm

33 mm

57 mm

D_a

199 mm

Tolerance: H12

d_a

152 mm

Tolerance: h12

r_{1 min}

2 mm

r_{a max}

2 mm

r_{a1 max}

1 mm

r_min

2 mm

25 °

Contact angle

3,34 kg

Mass

C_r

145000 N

Basic dynamic load rating, radial

C_0r

108000 N

Basic static load rating, radial

n_{G Fett}

5600 1/min

Limiting speed for grease lubrication

n_{G Öl}

9000 1/min

Limiting speed for minimal quantity oil lubrication

C_ur

8400 N

Fatigue limit load, radial

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