S-210.NGT.M1

Description

Bearing section S-210.NGT.M1 is a new short bearing section featuring enhanced operation life.

The bearing section is used in PDM power sections of 203 – 210 mm diameter and for drilling oil and gas wells with 250,8 – 374.6 mm bits.

Axial bearing of bearing section is a multi-row thrust ball bearing with toroidal raceways, radial bearings of bearing section are steel sleeves, having the friction surfaces reinforced with hard-alloy plates.

The bearing section is furnished with drive shaft with two joints to connect to the power section rotor. The bearing section design has adjustable bent sub. The adjustment range is from 0° up to 2° or from 0° up to 3°.

Meeting customers' requirements, the bearing section can be produced with the connecting threads for specific power section.

Top sub (safety sub) is available with the bearing section to connect the power section to drill pipes.

Technical specification

Technical specifications

Housing OD, mm	210
Bearing section length, mm	2 719
Bearing section length to curvature plane, mm	1 976
Range of angle adjuster change, degree	0-2 or 0-3
Connecting thread to bit	З-152
Torque transmitted, max. kN*m	25,0
Tolerance of axial loading, kN	350
Overhaul period, hour	250

Outline drawing

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Description and specification of S-210.NGT.M1 (0.2 MB, pdf)