The 6203 W13 FvLy TN9 A3 C3 V2 L10-6 Power Hand Tool Bearing is a premium deep groove ball bearing specially developed for high-speed electric power tools such as angle grinders, rotary hammers, circular saws, electric drills, and impact tools. Featuring optimized internal geometry, a reinforced TN9 polyamide cage, C3 internal clearance, low vibration (V2), and extended fatigue life (L10-6), it delivers excellent durability, reduced operating noise, and outstanding reliability under demanding working conditions.
| Item | Specification |
|---|---|
| Bearing Type | Deep Groove Ball Bearing |
| Bearing Series | 6203 |
| Bore Diameter (d) | 17 mm |
| Outside Diameter (D) | 40 mm |
| Width (B) | 12 mm |
| Dynamic Load Rating (Cr) | 10.5–10.8 kN |
| Static Load Rating (Cor) | 4.7–4.8 kN |
| Limiting Speed (Grease) | 18,000–20,000 rpm |
| Limiting Speed (Oil) | Up to 24,000 rpm |
| Weight | Approx. 0.065–0.067 kg |
| Precision Grade | P0 (Optional P6/P5) |
| Internal Clearance | C3 |
| Vibration Grade | V2 |
| Noise Level | Low Noise |
| Cage Material | Glass Fiber Reinforced Polyamide TN9 |
| Material | High Carbon Chrome Steel (GCr15 / SAE 52100) |
| Lubrication | Premium High-Speed Grease |
| Temperature Range | -30°C to +120°C |
| Suffix | Description |
|---|---|
| W13 | Lubrication groove and holes on outer ring for improved grease distribution |
| FvLy | Optimized low-friction and low-noise design for power tools |
| TN9 | Glass fiber reinforced polyamide cage |
| A3 | Optimized internal geometry for higher running stability |
| C3 | Greater than normal radial internal clearance |
| V2 | Low vibration precision grade |
| L10-6 | Extended bearing fatigue life design |
Bearing Rings: High Carbon Chrome Steel (GCr15 / SAE 52100)
Balls: Precision Grade Chrome Steel
Cage: Glass Fiber Reinforced Polyamide (TN9)
Lubricant: High-Speed Long-Life Grease
• Special groove design and process to enhance the rotational accuracy.
• Special channel and dust-proof groove processing technology.
• The sealing ring structure is specially designed with 100% airtight performance.
• The internal dimensions adjustment improves the lubrication efficiency.
• Only high-performance silent grease and rolling elements are selected.
• Only high-grade bearing steel from Jiangyin Xingcheng Special Steel is chosen.
• High reliability, long lifespan and Maintenance-free.
• Capable of withstanding mixed loads.
• Can maintain low temperature rise and low friction even under high-speed operation.
• Low vibration and noise levels and low energy consumption loss.
6202 D37Jr C3V2 L10-6
6001D32 TN9A3 C20/30V2L10-6
6001 D32 B12TN9A3 C20/30V2 L10-6
6202d-2/-7TN9XA3C18/25V2L10-12
6203ECJr C13/20V2L10-10
6001LLUVJrV2L19
6001 C3 V2 L10-6 OF (6001VJr C3 V2 L10-6 OF)
6000LLUVC3V2L19
6202VJr C3 V2 L10-10OF
Suitable for replacement bearings used by manufacturers of:
Bosch
Makita
DeWalt
Milwaukee
Hilti
Metabo
Hikoki
Dongcheng
Total
Ingco
C3 refers to a radial internal clearance that is greater than the standard clearance. Bearings with C3 clearance are designed to accommodate thermal expansion and higher operating speeds. In electric power tools, motors often generate significant heat during continuous operation. A C3 clearance helps prevent excessive preload, reduces friction, and improves bearing service life. It is widely used in high-speed applications such as electric drills, angle grinders, circular saws, and woodworking equipment.
The TN9 cage is a glass fiber reinforced polyamide cage designed for high-speed bearing applications. Compared with traditional steel cages, the TN9 cage offers lower weight, reduced friction, quieter operation, and better lubrication performance. It also minimizes heat generation during high-speed rotation, making it ideal for electric motors and power hand tools. The lightweight construction contributes to smoother operation and longer bearing life.
Yes. The 6203 W13 FvLy TN9 A3 C3 V2 L10-6 bearing is designed with dimensions compatible with the standard 6203 bearing (17 × 40 × 12 mm). It can serve as a replacement for SKF, NSK, NTN, KOYO, FAG, and other equivalent 6203 TN9 C3 bearings, provided that the application's operating conditions and technical specifications match. Customers should verify load capacity, speed requirements, lubrication, and sealing configuration before replacement.
Yes. This bearing is specially designed for high-speed electric power tools and is suitable for many Husqvarna woodworking and garden equipment applications that require a 6203 TN9 C3 bearing. Its low vibration (V2), high-speed capability, and long fatigue life make it an excellent choice for electric motors operating under demanding conditions. Please confirm the original bearing specification or part number before installation to ensure compatibility.
Yes. MTWB provides customized lubrication solutions according to customer requirements. We can select different grease types based on operating speed, temperature, noise level, humidity, dust exposure, or service life requirements. Options include high-speed grease, low-noise grease, high-temperature grease, water-resistant grease, and long-life lubrication for OEM applications. Customized grease filling quantity is also available to optimize bearing performance.
MTWB supports flexible production for both standard and customized bearings. The minimum order quantity (MOQ) depends on the product type, customization requirements, and packaging specifications. For standard bearings, small trial orders are generally accepted. For OEM or customized bearings, the MOQ may vary according to production processes. Please contact our engineering and sales team for a tailored quotation and the most suitable ordering solution.
The V2 vibration grade indicates that the bearing has tighter vibration control than standard bearings. Lower vibration results in quieter operation, smoother rotation, and improved performance for high-speed electric motors and precision power tools.
L10-6 represents an optimized bearing fatigue life design, helping improve durability under continuous operation. It contributes to longer maintenance intervals, greater reliability, and lower replacement costs for OEM power tools.
This bearing is widely used in electric drills, angle grinders, circular saws, woodworking machinery, rotary hammers, electric planers, garden tools, industrial electric motors, and other high-speed power hand tools requiring reliable, low-noise performance.
MTWB specializes in customized bearing solutions for global OEMs. We offer engineering support, customized grease and clearance options, low-noise bearing technology, stable quality control, flexible production, and fast delivery. With extensive experience in industrial and power tool bearings, MTWB helps customers improve equipment reliability while optimizing overall procurement costs.
Contact MTWB today to discuss your related power hand tool bearing requirements and receive a professional bearing solution.
MTWB (Mighty Way Industrial Limited) is a professional customized power hand tool deep groove ball bearings manufacturer and OEM bearing supplier specializing in high precision miniature bearings and application-specific bearing solutions.
With advanced manufacturing capabilities, comprehensive testing systems, and engineering expertise, MTWB helps global customers develop reliable bearing solutions for demanding applications.
