21309/21311/21312/21313/21314 Spherical Roller Bearings – High Capacity, Low Friction
Basic Info
| Inner Diameter | 100 mm |
| Outer Diameter | 215 mm |
| Width | 47 mm |
Introduction
Self-aligning roller bearing made of high-grade bearing steel. Suitable for heavy radial loads and misaligned shafts. Features grease or oil lubrication, precision ratings P0–P2, standard clearances C0/C3/C4, and OEM/ODM service. Widely used in industrial machinery and power transmission systems.Key Features & Technical Highlights
| Description | Core Value |
|---|---|
| Spherical roller bearing, 213 series (21309–21314) | Self-aligning capability compensates for shaft misalignment up to ±1.5° — extends service life in demanding industrial setups |
| Dimensions: 100×215×47 mm (21314 model) | Precise OEM/ODM fit for mining, cement, steel mill, and power generation equipment |
| CC CA W33 design | Enhanced cage strength (CC), high-load optimized geometry (CA), and relubrication grooves + seals (W33) for continuous operation |
| Bearing steel material, P0–P2 precision grades | Consistent dimensional accuracy and surface finish — meets SKF/NTN/NSK interchange standards |
| C0/C3/C4 clearance options | Optimized thermal expansion handling under heavy loads and high-speed conditions |
| Radial load capacity >2× standard deep groove bearings | Super high rigidity & low friction — reduces energy loss and heat generation |
| Grease or oil lubrication compatible | Flexible maintenance integration — supports centralized lube systems and sealed-for-life applications |
| Unseparated, single-row design | Easy installation & replacement — no complex disassembly required on-site |
| Manufactured in China, HS Code 8482300000 | ISO 9001-certified production with 1,000,000 pcs/year capacity — reliable supply & competitive lead time |
| OEM/ODM support with global brand compatibility | Direct drop-in replacement for SKF/NTN/NSK — full documentation & test reports provided upon request |
Why choose this 21314 CC CA W33? Engineered for extreme radial loads and dynamic misalignment, it outperforms generic spherical rollers in fatigue life and torque stability. Backed by real-world validation in crushers, gearboxes, and large motors — ask for application-specific load charts and mounting guidelines today.
- Product Name
- 21309/21311/21312/21313/21314 Spherical Roller Bearings – High Capacity, Low Friction
- Category
- Cylindrical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Cylindrical 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 |
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.
The engineering partner advantage
Get a custom quote for
21309/21311/21312/21313/21314 Spherical Roller Bearings – High Capacity, Low Friction
NDA protected · Free samples for orders > $50K · Reply within 12 hours
More Cylindrical Roller Bearing Products
N308EM Cylindrical Roller Bearing – High Precision, China Made
NTN Koyo Timken NF220em NF221em NF222em Cylindrical Roller Bearing