Slewing Ring Bearing

Assembly

Deep Groove Ball Bearing.jpg · Commons ↗ Report photo

Large toothed roller bearing between pedestal and revolving crane, driven by slew pinions.

Direct parts	5
Total parts	130
Used in	1 assembly
Class	Assembly

Report a problem with this BOM

Large toothed roller bearing between pedestal and revolving crane, driven by slew pinions. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Slewing Ring Bearing parts and their functions

5 top-level parts · 130 parts in total · full bill of materials below

Slewing Ring Bearing parts diagram: 1 ball bearing, 2 slew ring gear, 3 slew drive pinion, 4 oil seal, 5 fastener set. 130 parts in 5 top-level items. — Slewing Ring Bearing 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	Ball Bearing	1×	Deep-groove radial ball bearing.
2	Slew Ring Gear	1×	Internal or external gear cut on the slewing ring that the slew pinions drive against.
3	Slew Drive Pinion	4×	Motor-driven pinion meshing with the slew ring gear to rotate the crane.
4	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.
5	Fastener Set	120×	Bolts, nuts, and washers.

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 Slewing Ring Bearing

5 top-level lines · 5 rows shown · 130 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Ball Bearing	ball-bearing	1×	1	·	part
2	Slew Ring Gear	heavy-lift-ship-slew-gear	1×	1	·	part
3	Slew Drive Pinion	heavy-lift-ship-slew-pinion	4×	4	·	part
4	Oil Seal	oil-seal	4×	4	·	part
5	Fastener Set	fastener-set	120×	120	·	part

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

Where the slewing ring bearing is used

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

Marine 1 Heavy-Lift Ship

Used in 1 assembly

Heavy-Lift Mast Crane

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–$80. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳ZWZ Bearing zwz.com.cn ↗	Wafangdian, CN	Bearings	2,000 pcs	6–10 wks
🇮🇳NBC Bearings nbcbearings.com ↗	Jaipur, IN	Bearings (NEI)	2,000 pcs	6–10 wks
🇨🇳HRB Bearing hrbbearing.com ↗	Harbin, CN	Bearings	2,000 pcs	6–10 wks
🇮🇳NRB Bearings nrbbearings.com ↗	Mumbai, IN	Needle & auto bearings	2,000 pcs	6–10 wks
🇨🇳LYC Bearing lyc.com.cn ↗	Luoyang, CN	Bearings	2,000 pcs	6–10 wks