JARBLUE 6203/43 2RS Non-Standard Ball Bearing 17×43×12mm – 2pcs

JARBLUE 6203/43 2RS Non-Standard Ball Bearings — 17×43×12mm | ABEC-1 | 2-Piece Set

Upgrade your machinery with these precision-engineered JARBLUE 6203/43 2RS non-standard deep groove ball bearings. Designed for applications where standard sizing won't do, these 17×43×12mm bearings deliver consistent rotational performance, low friction, and long service life across a wide range of industrial and mechanical uses.

Key Specifications

• Brand: JARBLUE
• Model: 6203/43 2RS (174312)
• Dimensions: 17mm (bore) × 43mm (outer diameter) × 12mm (width)
• Precision Grade: ABEC-1
• Material: Steel
• Coating: Nickel
• Surface Roughness: Ra 0.8
• Seal Type: Double-rubber sealed (2RS) — keeps lubricant in and contaminants out
• Certification: CE
• High-Concern Chemicals: None
• Quantity: 2 pieces per pack
• Made in Mainland China

Why Choose These Bearings?

• Non-Standard Sizing: The 17×43×12mm configuration fills the gap where standard 6203 (17×40×12mm) bearings don't fit — a precise solution for custom or specialty machinery.
• Double Rubber Seals (2RS): Both sides are sealed to retain grease and block dust, dirt, and moisture — extending operational life with minimal maintenance.
• Steel Construction: Robust steel races and balls ensure durability under radial and moderate axial loads.
• Nickel Coating: Adds a layer of surface protection against oxidation and mild corrosion.
• Smooth & Quiet Operation: ABEC-1 precision grade ensures reliable, consistent rotation for motors, fans, conveyors, power tools, and more.
• CE Certified: Meets European conformity standards for quality and safety.

Common Applications

• Electric motors & generators
• Power tools & hand tools
• Conveyor systems
• Agricultural machinery
• Pumps & compressors
• Fans & blowers
• Custom fabrication & repair projects

What's in the Box?

• 2 × JARBLUE 6203/43 2RS Ball Bearings (17×43×12mm)

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Frequently Asked Questions

Q: What makes these bearings "non-standard" compared to a regular 6203 bearing?

A: A standard 6203 deep groove ball bearing has an outer diameter of 40mm. The JARBLUE 6203/43 has an enlarged outer diameter of 43mm (while keeping the same 17mm bore and 12mm width), making it specifically engineered for housings or applications where a standard 6203 would be too loose or under-sized. Always verify your housing dimensions before ordering.

Q: What does "2RS" mean on these ball bearings?

A: "2RS" stands for double rubber-sealed. Both sides of the bearing are fitted with rubber contact seals, which retain internal grease lubrication and prevent external contaminants like dust and moisture from entering the bearing. This makes them ideal for dusty or wet environments with minimal ongoing maintenance.

Q: Are these bearings pre-lubricated?

A: Yes. As double-sealed (2RS) bearings, they come pre-packed with grease from the factory. The seals keep the grease in place during operation, so no additional lubrication is required for most standard applications.

Q: What precision grade is ABEC-1, and is it right for my application?

A: ABEC-1 is the standard, entry-level precision tolerance grade suitable for general industrial machinery, power tools, motors, and similar applications where very high-speed or ultra-precise tolerances are not required. If your application demands tighter tolerances (e.g., high-speed spindles), consider higher ABEC grades. For most everyday mechanical uses, ABEC-1 provides reliable and cost-effective performance.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.