23080 CA/W33 Double-Row Spherical Roller Bearing Overview
The 23080 CA/W33 (also written as 23080CA/W33 and frequently cross-referenced with inquiry designations such as 23080CCW33C3, 23080 CC/W33 C3, 23080 CA/W33 C3, 23080-BEA-XL-MB1-C3) is a heavy-duty double-row spherical roller bearing in the ISO 230 series with boundary dimensions of 400 mm × 600 mm × 148 mm (400×600×148 mm) and a catalog reference mass of 146 kg. Engineered with a one-piece machined brass cage (CA) and an annular lubrication groove with three oil holes in the outer ring (W33), it provides a basic dynamic load rating of 2,970 kN and a basic static load rating of 5,900 kN, accommodating heavy radial loads, bidirectional axial loads, and dynamic shaft misalignment.
ZQM Bearings supplies the 23080 CA/W33 spherical roller bearing in both standard normal radial clearance (C0) and C3 radial internal clearance (matching 23080CCW33C3 specifications) for international bearing distributors, heavy machinery OEMs, and plant maintenance teams.
| Core Attribute | Specification | Engineering Note |
|---|---|---|
| Controlled Model | 23080 CA/W33 (23080CA/W33) | Covers inquiry code 23080CCW33C3 (CA/CC design + W33 + C3 clearance) |
| Bearing Type | Double-Row Spherical Roller Bearing | Self-aligning spherical outer ring raceway; cylindrical bore (1:12 K tapered bore optional) |
| Boundary Dimensions (d × D × B) | 400 mm × 600 mm × 148 mm | ISO 15 / DIN 635-2 metric dimension series 230 |
| Load Ratings & Mass | Cr = 2,970 kN · C0r = 5,900 kN · Mass = 146 kg | Verified against ZQM controlled engineering database |
23080 CA/W33 Technical Specifications (400×600×148 mm)
The following dimensional, load rating, speed, and abutment parameters are dynamically synchronized with the ZQM Bearings controlled engineering database to ensure 100% consistency with our online catalog:
Data source: ZQM Bearings controlled model database. Verify shaft/housing fits (da, db, Da), internal clearance and drawing requirements before ordering.23080CA/W33 Technical Specifications & Dimensions
Parameter Category Technical Parameter (Symbol) Catalogue Value Boundary Dimensions & Weight Bore diameter (d) 400 mm Boundary Dimensions & Weight Outside diameter (D) 600 mm Boundary Dimensions & Weight Width (B) 148 mm Boundary Dimensions & Weight Reference mass (Weight) (mass) 146 kg Load Ratings & Limiting Speeds Basic dynamic load rating (Cr) 2970 kN Load Ratings & Limiting Speeds Basic static load rating (Cor) 5900 kN Load Ratings & Limiting Speeds Limiting speed (grease) (grease) 480 rpm Load Ratings & Limiting Speeds Limiting speed (oil) (oil) 600 rpm Abutment & Fillet Dimensions Shaft abutment diameter (da) 422 mm Abutment & Fillet Dimensions Housing abutment diameter (Da) 578 mm Abutment & Fillet Dimensions Minimum chamfer dimension (r12) 5 mm Abutment & Fillet Dimensions Maximum fillet radius (ra) 4 mm Calculation Factors Calculation factor (e) 0.23 Calculation Factors Axial load factor (Y0) 2.9 Calculation Factors Axial load factor (Y1) 3 Calculation Factors Axial load factor (Y2) 4.4
Designation Breakdown & Structural Features (23080 CA/W33 / 23080CCW33C3)
Understanding the suffix nomenclature between standard catalog code 23080 CA/W33 and customer inquiry code 23080CCW33C3 ensures accurate technical interchangeability:
| Code Segment | Structural Meaning | Application & Interchange Impact |
|---|---|---|
230 |
ISO Dimension Series 230 Spherical Roller Bearing | Optimized cross-section for 400 mm bore heavy industrial shafts |
80 |
Bore Diameter Code (80 × 5 = 400 mm) | Standard cylindrical bore; tapered bore K (1:12) or K30 (1:30) available on request |
CA vs. CC |
One-piece machined brass cage (CA) with retaining ribs vs. stamped steel cage (CC) | Customer inquiry 23080CCW33C3 specifies CC/W33/C3; ZQM supplies heavy-duty machined brass cage (CA/W33) or CC/W33 per order |
W33 |
Annular oil groove and three lubrication holes in outer ring | Direct relubrication into the雙列 (double-row) roller contact zone |
C3 (on inquiry 23080CCW33C3) |
Radial internal clearance greater than Normal (C0) | Standard choice for heavy press fits, vibrating screens, drying cylinders, and high-temperature drives |
Typical Industrial Applications & Operating Conditions
With a dynamic load rating of 2,970 kN and static load rating of 5,900 kN, the 23080 CA/W33 (400×600×148 mm) is widely deployed across heavy industrial power transmission and rotating equipment:
| Industry Sector | Typical Equipment & Position | Operating Load Profile |
|---|---|---|
| Pulp & Paper Mill Machinery | Yankee dryer cylinders, press rolls, and calendar rolls requiring large bore diameter with compact radial cross-section. | Heavy radial load, combined axial load & shaft deflection |
| Large Industrial Fans & Blowers | Induced draft fans, power plant flue-gas blowers, and tunnel ventilation rotors operating under combined radial and axial loads. | Heavy radial load, combined axial load & shaft deflection |
| Marine Propulsion & Offshore Winches | Intermediate propeller shaft plummer blocks, mooring winches, and heavy deck machinery. | Heavy radial load, combined axial load & shaft deflection |
| Rotary Kilns & Tube Mills | Support rollers and girth gear pinion assemblies in cement, lime, and mineral processing plants. | Heavy radial load, combined axial load & shaft deflection |
Clearance, Cage & Bore Configuration Options
When ordering 23080 CA/W33 or matching an RFQ for 23080CCW33C3, confirm the following configuration parameters prior to dispatch:
| Configuration Item | Available Options | Selection Guidance |
|---|---|---|
| Radial Internal Clearance | C0 (Normal) · C3 · C4 |
Specify C3 when matching 23080CCW33C3 or when mounting with heavy shaft interference fits |
| Cage Design | CA / MB (Machined Brass) · CC / E (Pressed Steel) |
Machined brass cage provides superior mechanical strength under shock, vibration, and high acceleration |
| Bore & Groove | Cylindrical Bore · K Tapered Bore + W33 Oil Groove |
Verify shaft shoulder da ≥ 422 mm, housing shoulder Da ≤ 578 mm, and fillet ra ≤ 4 mm |
Brand Cross-Reference & Interchangeability (23080 CA/W33 / 23080CCW33C3)
All brands listed below share identical ISO 15 boundary dimensions (400 mm × 600 mm × 148 mm), while suffix letters vary by manufacturer internal design and cage/clearance code:
| Brand / Standard | Equivalent Designation | Design & Suffix Notes |
|---|---|---|
| ZQM Bearings | 23080 CA/W33 / 23080 CA/W33 C3 | Machined brass cage; available in C0 or C3 clearance |
| Customer Inquiry Code | 23080CCW33C3 | Direct dimensional interchange (400×600×148 mm); C3 radial clearance |
| SKF | 23080 CA/W33 / 23080 CC/W33 C3 (23080CCW33C3) | SKF Explorer series equivalent |
| FAG / Schaeffler | 23080-BEA-XL-MB1-C3 / 23080-MB-W33 | X-life / standard machined brass cage design |
| NSK | 23080CAME4 / 23080CAME4 C3 | High-capacity machined brass cage specification |
| NTN | 23080B / 23080EMD1C3 | Heavy-duty industrial specification |
| Timken | 23080YMW33C3 | Brass cage heavy industrial series |
Procurement & Pre-Order Verification Checklist
To receive a fast, accurate quotation from ZQM Bearings for 23080 CA/W33 (or 23080CCW33C3), please include the following details in your inquiry:
| Verification Item | Required Information | Why It Matters |
|---|---|---|
| 1. Exact Designation & Suffix | State 23080 CA/W33 or 23080CCW33C3 (confirm C0 vs. C3 clearance) |
Ensures internal radial clearance and cage type match your operating temperature and fit |
| 2. Order Quantity & Usage | Batch quantity (e.g., trial order, MRO replacement, or scheduled OEM delivery) | Allows us to allocate production/stock batches and optimize export crate packaging (unit mass: 146 kg) |
| 3. Inspection & Documentation | Dimensional inspection report, material certificate, or clearance test sheet | Available upon request prior to shipment for quality verification |
| 4. Destination & Incoterms | Target port/country and preferred terms (EXW, FOB, CIF, or air/express freight) | Enables accurate freight calculation and lead-time confirmation |
Frequently Asked Questions (23080 CA/W33 / 23080CCW33C3)
Q1: Can ZQM 23080 CA/W33 replace 23080CCW33C3 directly?
Yes. Both share the exact ISO boundary dimensions of 400 mm × 600 mm × 148 mm. When your inquiry or equipment manual specifies 23080CCW33C3, simply request 23080 CA/W33 with C3 radial clearance (or specify whether you prefer the heavy-duty CA machined brass cage or CC pressed steel cage) so both mounting dimensions and internal operating clearance are 100% matched.
Q2: What are the exact mounting shoulder and fillet dimensions for 23080 CA/W33?
According to our controlled engineering database, the minimum chamfer dimension r1,2 min is 5 mm, maximum shaft/housing fillet radius ra max is 4 mm, minimum shaft abutment diameter da min is 422 mm, and maximum housing abutment diameter Da max is 578 mm.
Q3: What is the unit weight of 23080 CA/W33 for freight calculation?
The catalog reference mass of a single 23080 CA/W33 bearing is 146 kg (excluding export wooden case or pallet weight).
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