Rear Portal Axle

Assembly

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Driven portal axle whose hub-reduction gears sit above the wheel centre, raising the axle tube to clear a continuous low floor across the rear platform.

Direct parts	5
Total parts	15
Used in	1 assembly
Class	Assembly

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Driven portal axle whose hub-reduction gears sit above the wheel centre, raising the axle tube to clear a continuous low floor across the rear platform. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Rear Portal Axle parts and their functions

5 top-level parts · 15 parts in total · full bill of materials below

Rear Portal Axle parts diagram: 1 differential, 2 portal gearset, 3 helical gear pair, 4 ball bearing, 5 oil seal. 15 parts in 5 top-level items. — Rear Portal Axle parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Differential	1×	Final-drive differential
2	Portal Gearset	2×	Hub-reduction gears
3	Helical Gear Pair	2×	Two meshing helical gears forming one reduction stage that steps torque up and speed down between parallel shafts with quiet, continuous tooth contact.
4	Ball Bearing	6×	Deep-groove radial ball bearing.
5	Oil Seal	4×	Spring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760.

3D model

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Build & assembly graph

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Bill of materials for Rear Portal Axle

5 top-level lines · 5 rows shown · 15 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Differential	city-transit-bus-differential	1×	1	·	part
2	Portal Gearset	city-transit-bus-portal-gearset	2×	2	·	part
3	Helical Gear Pair	gear-pair	2×	2	·	part
4	Ball Bearing	ball-bearing	6×	6	·	part
5	Oil Seal	oil-seal	4×	4	·	part

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Where the rear portal axle is used

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

Rail & Transit 1 Transit Bus

Used in 1 assembly

Driveline and Axles

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

Vendor	HQ	Specialty	MOQ	Lead 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