DKFL 5301 2RS C3 Angular Contact Ball Bearing
The DKFL 5301 2RS C3 is a double-row angular contact ball bearing. Its structural design is equivalent to two single-row angular contact bearings mounted back-to-back (O-Arrangement). Belonging to the 5300 heavy series, its engineered contact angle allows it to support high radial loads and axial forces from both directions without the need for complex, separate bearing sets.
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Product Detail
DKFL 5301 2RS C3 Double Row Angular Contact Ball Bearing Combined Axial/Radial Loads | C3 Thermal Clearance | 2RS Sealed | 12mm Bore
Engineered for simultaneous handling of heavy radial and bi-directional axial loads with superior dynamic rigidity for sensitive industrial equipment.
Technical Overview: DKFL 5301 2RS C3
The DKFL 5301 2RS C3 is a double-row angular contact ball bearing. Its structural design is equivalent to two single-row angular contact bearings mounted back-to-back (O-Arrangement). Belonging to the 5300 heavy series, its engineered contact angle allows it to support high radial loads and axial forces from both directions without the need for complex, separate bearing sets.
The C3 internal clearance ensures smooth operation at high speeds and effectively manages thermal expansion during continuous operation. Additionally, the 2RS contact rubber seals (NBR with steel core) provide robust protection against moisture and abrasive particulates, retaining the factory-grade lithium complex grease for the entire service life of the bearing.
Technical Code Breakdown (DKFL 5301 2RS C3)
5: Double Row Angular Contact Ball Bearing.
3: Dimension Series 3 (Heavy series with greater width and load capacity compared to 52 series).
01: Standard bore size code, indicating a 12mm inner diameter.
2RS: Equipped with dual-side NBR contact rubber seals for complete isolation.
C3: Greater-than-normal radial internal clearance for high-speed operation and thermal expansion compensation.
Technical Specifications
| Bore (d) | OD (D) | Width (B) | Clearance | Seal | Material | Brand |
|---|---|---|---|---|---|---|
| 12 mm | 37 mm | 19 mm | C3 | 2RS (NBR) | 100Cr6 | DKFL |
Technical Comparison: 5301 vs 5201 & 6301
| Model | Dimensions (d×D×B) | Configuration | Axial Load Capacity | Rigidity |
|---|---|---|---|---|
| DKFL 5301 | 12×37×19 mm | Double Row Angular | Very High (Bi-directional) | Maximum Stiffness |
| DKFL 5201 | 12×32×15.9 mm | Double Row Angular | High (Bi-directional) | Good for compact spaces |
| DKFL 6301 | 12×37×12 mm | Single Row Deep Groove | Moderate / Limited | Standard |
Key Advantages
Combined Axial/Radial Loading
Double-row angular design supports simultaneous radial loads and bi-directional axial thrust.
Tilting Moment Resistance
The wide effective span provides exceptional rigidity against tilting moments and non-axial vibrations.
Advanced 100Cr6 Metallurgy
High-carbon chromium steel construction ensures resistance against early fatigue under heavy loads.
Greased for Life
2RS contact seals guarantee consistent lubrication and minimize maintenance overheads.
Installation Protocol (KGICO Standard)
When installing onto the 12mm shaft, force must be applied strictly to the inner ring only. Pressing through the outer ring or the balls will cause race deformation and permanent damage to the contact geometry.
- Do not strike the bearing body or seals with hammers or punches.
- Do not wash the bearing in solvents (e.g., gasoline/diesel) to prevent dissolving factory lubricant.
- Verify housing and shaft fitment for correct axial alignment prior to installation.
Frequently Asked Questions
1. Does this bearing require periodic re-greasing?
No; the 2RS designation indicates dual-side contact seals. These bearings are pre-lubricated for life at the factory and require no maintenance.
2. What is the difference between the 5301 and 5201 series?
The 5301 features a 37mm OD and 19mm width, while the 5201 is 32mm OD and 15.9mm wide. The 5301 is engineered for significantly heavier radial and axial loads.
Direct Supply: DKFL 5301 2RS C3
Kamyar Gostar Iranian (KGICO) is an official importer and distributor of quality DKFL bearings. Contact us for bulk industrial pricing and technical engineering consultation.
View Pricing at kgico.co