The 6003 ZZ CX (17x35x10 mm) shielded deep groove ball bearing combines durability, ease of installation, and protection from contaminants. Its compact design, shielded construction, and precision build make it a strong choice for electric motors, pumps, automation, and machinery where reliability matters.
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Overview
The 6003 ZZ CX is a single-row deep groove ball bearing equipped with double metal shields (ZZ) and built in the CX variant. Its nominal dimensions are 17 mm (inner bore) x 35 mm (outer diameter) x 10 mm (width). The “ZZ” shields help protect the bearing from dust and debris while maintaining moderate friction and allowing it to function effectively in many industrial and electromechanical applications.
This bearing is commonly used in electric motors, gearboxes, pumps, small industrial machinery, fans, and automation equipment. Its sealed (shielded) construction is particularly valuable in environments where particulate matter or contamination may reduce the lifespan of open bearings.
Key advantages include:
Double metal shielding (ZZ) — guards against contamination, while preserving lubricant and reducing ingress of particles
Pre-lubricated and ready to install — arrives factory greased, minimizing setup time
Compact, standardized dimensions (17x35x10 mm) — easily integrates into a wide variety of systems
Deep groove design — provides low friction, stable rotational behavior, and the ability to handle radial loads (plus limited axial load)
Brand variant “CX” — distinguishing marking without altering fundamental performance
Broad industrial relevance — suitable for applications in robotics, machine tools, pumps, and more
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| Feature | Value |
|---|---|
| Bore (d) | 17 mm |
| Outer Diameter (D) | 35 mm |
| Width (B) | 10 mm |
| Bearing Type | Deep groove (single row) |
| Shields / Covers | ZZ — double metal shields on both sides |
| Load Support | Primarily radial, limited axial capacity |
| Lubrication | Factory grease, shielded design |
| Max Speed (approx.) | Up to ~19,000 rpm in typical use |
| Dynamic Load Rating | ~6.37 kN (typical for 6003 class) |
| Static Load Rating | ~3.25 kN |
| Material & Build | Chrome steel, shielded design |
The double metal shields add a small amount of friction compared to an open bearing, but in typical operating ranges their effect is modest. The shielded arrangement helps maintain clean internal conditions and lubricant retention.
Installation & Best Practices
Handle with clean tools to avoid damaging shields
Use press or sleeve tools that apply load only to the correct ring; avoid hitting shields
Do not remove or tamper with the shields — they are part of the protective design
Ensure shaft and housing tolerances are correct to avoid misalignment stress
Monitor temperature and vibration during operation — spikes may signal wear or contamination
Q1: What do “ZZ” and “CX” mean in 6003 ZZ CX?
“ZZ” means the bearing is shielded with metal shields on both sides. “CX” is a variant marking (manufacturer-specific) that identifies a subtype or internal variant without altering the basic geometry.
Q2: Can the 6003 ZZ CX handle axial loads?
It’s intended primarily for radial loads, with limited axial capacity under normal conditions.
Q3: What are the exact dimensions?
This bearing measures 17 mm x 35 mm x 10 mm (inner bore x outer diameter x width).
Q4: Does it require lubrication before installation?
No — the bearing is factory-lubricated and shielded, ready to use out of the box.
Q5: Is fast delivery available?
Yes — from our base in Lublin:
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing