BOMwiki the bill-of-materials encyclopedia
30,454,201 parts mapped · 193,225 items
Discussion History

Grinding Rotor Assembly

Assembly

Hammer-carrying rotor that shatters grain by impact at high tip speed. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Grinding Rotor Assembly parts and their functions

10 top-level parts · 281 parts in total · full bill of materials below
Grinding Rotor Assembly parts diagram: 1 rotor shaft, 2 pin holder disc, 3 swing hammer, 4 hammer pin, 5 hammer spacer, 6 pin retaining clip, 7 ball bearing, 8 rotor bearing housing, 9 oil seal, 10 balance weight. 281 parts in 10 top-level items.
Grinding Rotor Assembly parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Rotor Shaft 1× Main rotor shaft
2 Pin Holder Disc 6× Discs that carry the hammer pins
3 Swing Hammer 48× Swing hammers
4 Hammer Pin 4× Rods threading all hammers
5 Hammer Spacer 200× Spacers setting hammer pitch
6 Pin Retaining Clip 8× Retains hammer pins
7 Ball Bearing 2× Rotor support bearings
8 Rotor Bearing Housing 3 parts 2× Pillow blocks
9 Oil Seal 2× Spring-loaded rotary lip seal that keeps lubricant inside a housing and dirt out where a shaft passes through, sized to DIN 3760.
10 Balance Weight 4× Dynamic balance correction

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Grinding Rotor Assembly

10 top-level lines · 13 rows shown · 281 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Rotor Shaft hammer-mill-feed-rotor-shaft 1× 1 · part
2 Pin Holder Disc hammer-mill-feed-pin-disc 6× 6 · part
3 Swing Hammer hammer-mill-feed-hammer 48× 48 · part
4 Hammer Pin hammer-mill-feed-hammer-pin 4× 4 · part
5 Hammer Spacer hammer-mill-feed-spacer 200× 200 · part
6 Pin Retaining Clip hammer-mill-feed-pin-circlip 8× 8 · part
7 Ball Bearing ball-bearing 2× 2 · part
8 Rotor Bearing Housing 3 parts hammer-mill-feed-bearing-housing 2× 2 3 assembly
8.1 Gearbox Housing gearbox-housing 1× 2 · part
8.2 O-Ring Set oring-set 1× 2 · part
8.3 Fastener Set fastener-set 1× 2 · part
9 Oil Seal oil-seal 2× 2 · part
10 Balance Weight hammer-mill-feed-balance-weight 4× 4 · part

Something wrong in this list? Report a problem with this BOM.

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 $2–$500. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Inovance
inovance.com ↗
Shenzhen, CN Drives & motion control 500 units 10–14 wks
🇮🇳Sona Comstar
sonacomstar.com ↗
Gurugram, IN EV driveline & motors 500 units 10–14 wks
🇨🇳Broad-Ocean
broad-ocean.com ↗
Zhongshan, CN Electric motors 500 units 10–14 wks
nidec.com ↗ Singapore Motors, regional ops 500 units 10–14 wks
🇮🇳Bosch India
bosch.in ↗
Bengaluru, IN Automotive components 500 units 10–14 wks