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Discussion History

Surface Drive Head

Assembly

The surface rotary unit that supports the rod-string axial load, seals the wellhead against produced fluid, and converts motor torque into rotation of the polished rod. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Surface Drive Head parts and their functions

8 top-level parts · 17 parts in total · full bill of materials below
Surface Drive Head parts diagram: 1 drive head frame, 2 hollow drive shaft, 3 thrust bearing assembly, 4 ball bearing, 5 stuffing box, 6 backspin brake, 7 oil seal, 8 fastener set. 17 parts in 8 top-level items.
Surface Drive Head parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Drive Head Frame 1× Cast structural frame
2 Hollow Drive Shaft 1× Hollow output shaft
3 Thrust Bearing Assembly 2 parts 1× Axial load thrust bearing
4 Ball Bearing 2× Radial shaft bearings
5 Stuffing Box 3 parts 1× Polished rod seal assembly
6 Backspin Brake 3 parts 1× Energy-dissipating retarder
7 Oil Seal 2× Shaft seals at head bore
8 Fastener Set 1× Mounting and cover fasteners

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Surface Drive Head

8 top-level lines · 16 rows shown · 17 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Drive Head Frame pcp-drive-frame 1× 1 · part
2 Hollow Drive Shaft pcp-hollow-drive-shaft 1× 1 · part
3 Thrust Bearing Assembly 2 parts pcp-thrust-bearing 1× 1 2 assembly
3.1 Thrust Bearing Element pcp-thrust-bearing-element 1× 1 · part
3.2 O-Ring Set oring-set 1× 1 · part
4 Ball Bearing ball-bearing 2× 2 · part
5 Stuffing Box 3 parts pcp-stuffing-box 1× 1 3 assembly
5.1 Polished Rod Packing Set pcp-packing-set 1× 1 · part
5.2 Packing Gland pcp-packing-gland 1× 1 · part
5.3 O-Ring Set oring-set 1× 1 · part
6 Backspin Brake 3 parts pcp-backspin-brake 1× 1 5 assembly
6.1 Brake Disc pcp-brake-disc 1× 1 · part
6.2 Brake Shoe pcp-brake-shoe 2× 2 · part
6.3 Coil Spring coil-spring 2× 2 · part
7 Oil Seal oil-seal 2× 2 · part
8 Fastener Set fastener-set 1× 1 · part

Where the surface drive head is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

PCP Artificial Lift System

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks