Pedal Drivetrain

Assembly

Lag screws aka lag bolts 002.png · Commons ↗ Report photo

Pedal crank driving a primary chain to a jackshaft, then a secondary chain to the rear axle, giving wide low gearing for climbing with a 250 kg load.

Direct parts	8
Total parts	19
Used in	1 assembly
Class	Assembly

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Pedal crank driving a primary chain to a jackshaft, then a secondary chain to the rear axle, giving wide low gearing for climbing with a 250 kg load. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Pedal Drivetrain parts and their functions

8 top-level parts · 19 parts in total · full bill of materials below

Pedal Drivetrain parts diagram: 1 crankset, 2 platform pedal, 3 bottom bracket cartridge, 4 primary drive chain, 5 jackshaft, 6 secondary drive chain, 7 rear freewheel, 8 helical gear pair. 19 parts in 8 top-level items. — Pedal Drivetrain 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	Crankset 2 parts	1×	Crank arms and chainring
2	Platform Pedal	2×	Platform pedals
3	Bottom Bracket Cartridge 3 parts	1×	Crank bearing cartridge
4	Primary Drive Chain	1×	Crank to jackshaft chain
5	Jackshaft 3 parts	1×	Intermediate reduction shaft
6	Secondary Drive Chain	1×	Jackshaft to axle chain
7	Rear Freewheel	1×	Rear axle freewheel
8	Helical Gear Pair	1×	Jackshaft reduction sprockets

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Build & assembly graph

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Bill of materials for Pedal Drivetrain

8 top-level lines · 16 rows shown · 19 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Crankset 2 parts	freight-tricycle-crankset	1×	1	3	assembly
1.1	Steel Crank Arm	freight-tricycle-crank-arms	2×	2	·	part
1.2	46T Chainring	freight-tricycle-chainring	1×	1	·	part
2	Platform Pedal	freight-tricycle-pedals	2×	2	·	part
3	Bottom Bracket Cartridge 3 parts	freight-tricycle-bottom-bracket	1×	1	5	assembly
3.1	Bottom Bracket Spindle	freight-tricycle-bb-spindle	1×	1	·	part
3.2	Ball Bearing	ball-bearing	2×	2	·	part
3.3	Oil Seal	oil-seal	2×	2	·	part
4	Primary Drive Chain	freight-tricycle-primary-chain	1×	1	·	part
5	Jackshaft 3 parts	freight-tricycle-jackshaft	1×	1	5	assembly
5.1	Jackshaft Shaft	freight-tricycle-jackshaft-shaft	1×	1	·	part
5.2	Ball Bearing	ball-bearing	2×	2	·	part
5.3	Pillow Block Housing	freight-tricycle-pillow-block	2×	2	·	part
6	Secondary Drive Chain	freight-tricycle-secondary-chain	1×	1	·	part
7	Rear Freewheel	freight-tricycle-freewheel	1×	1	·	part
8	Helical Gear Pair	gear-pair	1×	1	·	part

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Where the pedal drivetrain is used

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

Bicycles & Cycling 1 Freight Tricycle

Used in 1 assembly

Freight Tricycle

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 $0.01–$2. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇮🇳Sundram Fasteners sundram.com ↗	Chennai, IN	Fasteners	10,000 pcs	3–5 wks
🇮🇳Lakshmi Precision Screws lpsindia.com ↗	Rohtak, IN	Fasteners	10,000 pcs	3–5 wks
🇨🇳Suzhou Escort escort-fastener.com ↗	Suzhou, CN	Fasteners	10,000 pcs	3–5 wks
🇨🇳Shanghai Tianbao tbfastener.com ↗	Shanghai, CN	Fasteners	10,000 pcs	3–5 wks
🇮🇳Sterling Tools sterlingtools.in ↗	Faridabad, IN	Fasteners	10,000 pcs	3–5 wks