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Tubes for bearing production

Dimensions of precision tubes for bearing production

Outside diameter [mm] Wall thickness [mm]
22-25 3-4,1
25,01-29 3-5
29,01-32 3-6,7
32,01-40 3-7,8
40,01-70 3-8

Tolerance of outside diameter

D50 mm : 0 +0,25 mm

Tolerance of wall thickness

± 7,5 % (po uzgodnieniu ± 5%)

Lengths

3 000 ± 500 mm

Straightness

1 mm / 1 000 mm, max 2,5 mm / 3 000 mm

Delivery condition (heat treatment)

GKZ + K + G – annealed for globular carbide + cold finished + soft annealed

Hardness

After soft annealing is 174-220 HB. Dispersion of hardness along the tube length max. 15 HB. Hardness by quenching test is min. 61 HRC.

Surface condition

The tubes are delivered with surface after soft annealing. Max depth of defects is 0,25 mm including decarbonizing.

Tube ends

Plain square cut ends, one end bevelled 0,5-4 mm x 45°.

Testing

Testing according to DIN 17 230. NDT upon agreement according to EN 10246-3 E2H and EN 10246-7 U2/B and test of material identification of alloy steel.

Marking

Bundles are marked with label.

Surface protection

Oiled

Packing

Tubes are packed in bundles (weight 1 000 – 3 000 kg).

Cerificates

according to DIN 50049 – EN 10204 – 3.1

Głównym profilem działalności MARGO Sp. z o.o. jest handel rurami stalowymi. W ofercie posiadamy również kształtki, złącza stalowe oraz inne wyroby hutnicze.

Nasza oferta

Innowacyjny system elektroniczny B2B w Spółce Margo