Spherical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
Need Technical Advice?
Reply within 12 hours · 15+ certified engineers on call
Spherical Roller Bearing
21305CDE4 Spherical Roller Bearing – Self-Aligning, 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. Features grease or oil lubrication, precision grades P0–P2, clearances C0/C3/C4, and aligning capability. Designed for OEM/ODM applications with robust carton-pallet packaging.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
| Description | Core Value |
|---|---|
| Spherical self-aligning design | Compensates for shaft misalignment up to ±2.5° — extends service life in harsh mining/agricultural environments |
| Double-row roller construction | High radial & moderate axial load capacity — ideal for heavy-duty rotating equipment |
| 160×290×80 mm dimensions (d×D×B) | Precise OEM fit for common gearboxes, crushers, harvesters, and conveyors |
| Bearing steel (GCr15) + heat-treated cage | Superior hardness (HRC 60–64) and fatigue resistance vs. standard carbon steel |
| Multiple precision grades (P0–P2) | Ensures low vibration & noise — P5/P4 available for high-speed applications |
| Adjustable clearance (C0/C3/C4) | Optimized thermal expansion control — C3 most popular for industrial machinery |
| Grease or oil lubrication compatible | Flexible maintenance — supports long-interval relubrication with lithium-based grease |
| Unseparated, robust cage (E4-type pressed steel) | Enhanced roller guidance & reduced skidding — improves reliability under shock loads |
| OEM/ODM support + BDL branding (China origin) | Fully customizable specs, packaging, and marking — backed by ISO 9001-certified production |
| HS Code 8482300000 | 1M pcs/year capacity | Fast lead time & global compliance — ready for bulk export and project supply |
Engineered for extreme conditions: used in jaw crushers, rotary tillers, grain augers, and vibrating screens. Unlike generic imports, these bearings feature tighter raceway geometry tolerances, optimized roller profiles, and 100% dimensional inspection. FAQ: Q: Can it replace SKF 21305 EAE4? A: Yes — identical interface & performance; superior cost-efficiency. Q: Is C3 clearance standard? A: Yes, unless specified otherwise. Q: What’s the max speed with grease? A: ~2,200 rpm (with proper sealing & cooling). Ready to request a quote or sample? Contact us now — our engineers respond within 2 hours.
Product Summary
- Product Name
- 21305CDE4 Spherical Roller Bearing – Self-Aligning, 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, Cage Design for Mining & Agri Machines
NDA protected · Free samples for orders > $50K · Reply within 12 hours
Related Products
More Spherical Roller Bearing Products
Spherical Roller Bearing
Spherical Roller Bearing 22218K W33 C3 Self-Aligning High Quality
Spherical Roller Bearing
21304-21308 Spherical Roller Bearings – High Capacity, Low Friction, W33
