A lower total-width 120 mm-bore tapered bearing
The 30224 and 32224 share 120 mm bore and 215 mm outside diameter, but their overall widths T differ: 43.5 mm versus 61.5 mm. The 30224 cannot be selected as a replacement merely because the shaft and housing diameters match.
Check the complete cup-and-cone specification
Single-row tapered roller bearings are used in arrangements carrying combined radial and axial loads. The axial support direction and the opposed bearing arrangement must be checked in the machine drawing. A matching bore size does not establish the correct setting, preload or endplay for an assembly.
Procurement for industrial maintenance
When reviewing a gearbox, industrial drive or machinery maintenance requirement, provide the complete cup and cone markings, the removed bearing photographs and the assembly position. Confirm whether the request is for a complete bearing or individual components. Do not substitute a bearing on the basis of nominal dimensions alone.
Catalogue data boundaries
Only confirmed catalogue fields are shown below. Speed entries with an unresolved source-unit heading are omitted rather than interpreted as r/min. The displayed load ratings are catalogue references; the supplied configuration and application limits require technical confirmation.
Send a complete quotation request
- Complete model marking and quantity.
- Required clearance, fits and assembly drawing.
- Load direction, operating speed, temperature and lubrication.
- Delivery destination and inspection-document requirements.
ZQM Bearings supports industrial bearing sourcing with manufacturing resources in Wafangdian, export operations in Ningbo and warehousing in Shanghai. Availability, minimum order quantity and lead time are confirmed by enquiry; this page is not a live stock listing.
Catalogue technical specifications
| Abutment dimension Da (Da) | 195 mm |
|---|---|
| Abutment dimension Db (Db) | 206 mm |
| Abutment dimension da (da) | 145 mm |
| Abutment dimension db (db) | 132 mm |
| Bore (d) | 120 mm |
| Minimum chamfer r12 (r12) | 3 mm |
| Minimum chamfer r34 (r34) | 2.5 mm |
| Factor Y (Y) | 1.4 |
| Factor Y0 (Y0) | 0.76 |
| Factor e (e) | 0.44 |
| Maximum fillet ra (ra) | 2.5 mm |
| Maximum fillet rb (rb) | 2 mm |
| Load centre dimension a (a) | 44.4 mm |
| Catalogue dynamic load (original symbol) (Cr) | 335 kN |
| Catalogue static load (original symbol) (Cor) | 450 kN |
| Mass (mass) | 6.28 kg |
| Outside diameter (D) | 215 mm |
| Overall width T (T) | 43.5 mm |
| Ring width C (C) | 34 mm |
| Width B (type-specific) (B) | 40 mm |
Related models and selection tools
Bearing category · Compare series specifications · Request a Quote
Image for reference only.
30224 Sourcing: China Supply and Flexible Orders
ZQM Bearings supports overseas distributors, importers, machinery manufacturers and industrial end users. Discuss small quantities, mixed-model purchase lists and wholesale or bulk-order requirements. Our manufacturing resources in Wafangdian, export coordination in Ningbo and Shanghai warehousing support order planning; actual availability, MOQ and lead time are confirmed by enquiry.
Brand Alternatives and OEM Review
For an alternative or replacement requirement, send the complete original brand designation, suffixes and drawing. Matching dimensions alone do not confirm interchangeability. Cage, clearance, precision, internal design and operating conditions require review. OEM and custom-bearing requests are assessed against the supplied technical requirements.
Technical reference
30224 dimensions & specifications
