23960 Bearing: A Compact 300 mm Bore Envelope
The 23960 CA/W33 combines a 300 mm bore with a 420 mm outside diameter and 90 mm width. This gives a smaller installation envelope than the 23060 size, whose outside diameter is 460 mm and width is 118 mm. Check the available housing diameter and axial space before comparing load ratings or choosing a replacement.
CA Cage and W33 Lubrication Features
The CA design uses a machined brass cage. W33 identifies the outer-ring lubrication groove and holes; the housing oil or grease supply still needs a suitable route into that groove. These features do not establish the correct lubricant, replenishment interval or permissible operating speed for your machine.
Legacy Designation 3053960KH
The ZQM catalog lists 3053960KH against 23960 CA/W33. Include both markings when replacing an older bearing, and check the actual bore, outside diameter, width, clearance and ring details. A catalog cross-reference alone does not establish complete interchangeability with another manufacturer’s bearing.
Before You Order
- Confirm the 300 mm shaft size and the housing shoulder drawing.
- Specify the required clearance; C3 is not included in this designation.
- Provide load direction, speed, lubrication and operating temperature.
- Send the quantity and any inspection or packaging requirements.
Does a 300 mm Bore Make These Bearings Interchangeable?
No. The 23960, 23060 and 24060 sizes share the bore dimension but differ in the space they occupy. A wider or larger outside diameter cannot be accommodated simply by keeping the same shaft.
The technical attributes are transcribed from the ZQM product catalog. Confirm the current drawing and supplied configuration before engineering approval; grease and oil speeds are catalog references, not unconditional machine operating limits.
Browse spherical roller bearings or send the complete bearing designation and quantity for a quote.
Catalogue technical specifications
| Abutment dimension Da (Da) | 406 mm |
|---|---|
| Abutment dimension da (da) | 314 mm |
| Bore (d) | 300 mm |
| Minimum chamfer r12 (r12) | 3 mm |
| Factor Y0 (Y0) | 3.4 |
| Factor Y1 (Y1) | 3.5 |
| Factor Y2 (Y2) | 5.2 |
| Factor e (e) | 0.19 |
| Maximum fillet ra (ra) | 2.5 mm |
| Catalogue dynamic load (original symbol) (Cr) | 1230 kN |
| Catalogue static load (original symbol) (Cor) | 2490 kN |
| Mass (mass) | 38.2 kg |
| Outside diameter (D) | 420 mm |
| Grease-lubricated speed (grease) | 710 rpm |
| Oil-lubricated speed (oil) | 900 rpm |
| Width B (type-specific) (B) | 90 mm |
Related models and selection tools
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23960CA/W33 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
23960CA/W33 dimensions & specifications
