Spherical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Spherical Roller Bearing
21305CDE4 Spherical Roller Bearing – Self-Aligning, High-Load Cage Design for Mining & Agri Machines
Basic Info
| Inner Diameter | 160 mm |
|---|---|
| Outer Diameter | 290 mm |
| Thickness | 80 mm |
Introduction
High-precision double-row spherical roller bearing made of bearing steel. Suitable for heavy radial loads with self-aligning capability. Compatible with grease or oil lubrication. Available in precision grades P0–P2 and clearances C0–C4. Designed for OEM/ODM applications. Origin: China.7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Key Features & Technical Highlights
| Feature | Description |
| Self-Aligning Design | Compensates for shaft misalignment up to ±2.5° — ideal for heavy-duty mining & agricultural machinery with dynamic loads. |
| Dual-Row Spherical Rollers | Enhanced radial & moderate axial load capacity; superior to standard deep groove bearings in shock-prone environments. |
| Precision Grades Available | P0 to P2 tolerance — ensures smooth rotation, low noise, and extended service life under high-speed operation. |
| Multiple Clearance Options | C0/C3/C4 — optimized thermal expansion management for variable operating temperatures (–30°C to +120°C). |
| Lubrication Flexibility | Compatible with both grease (long-life maintenance) and oil (high-speed cooling) systems. |
| High-Strength Bearing Steel | GCr15 (equivalent to SKF’s standard material) — hardened to HRC 60–64 for exceptional wear resistance. |
| Robust Cage Design | Brass or pressed steel cage (per model variant) — improves roller guidance and reduces friction heat. |
| Proven Application Fit | Widely used in crushers, conveyors, harvesters, balers, and rotary tillers — validated by OEM field testing. |
| Quality Assurance | ISO 9001 certified production; 100% dimensional & hardness inspection; traceable batch documentation. |
| Competitive Edge | Same core specs as SKF 21305 EAE4 — but with faster lead time, custom clearance/lubrication options, and full OEM/ODM support. |
Need technical confirmation or a customized quote? Contact our bearing specialists today — we’ll match your application requirements with the optimal variant (CDE4, CDKE4, CAE4, or CAKE4) and provide CAD drawings, mounting advice, and lifecycle support.
Product Summary
- Product Name
- 21305CDE4 Spherical Roller Bearing – Self-Aligning, High-Load Cage Design for Mining & Agri Machines
- Category
- Spherical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Spherical Roller Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
21305CDE4 Spherical Roller Bearing – Self-Aligning, High-Load Cage Design for Mining & Agri Machines
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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