FAG 61804 ZZ C2 ZEN 20x32x7 - Precision Deep Groove Ball Bearing (Tight Clearance C2)

Applications

The ZEN 61804 ZZ C2 bearing (20x32x7 mm) is a single-row deep groove ball bearing engineered for high-speed and high-precision industrial applications.
Its C2 internal clearance, smaller than standard, ensures tighter dimensional control, reduced vibration, and smoother rotation — making it ideal for electric motors, spindles, precision gearboxes, and automation drives.

Equipped with double metal shields (ZZ), this bearing provides protection against dust and contamination while maintaining lubrication inside. Its compact construction and pre-lubricated design allow for maintenance-free operation, reducing downtime and servicing costs in continuous production environments.

Advantages

• Reduced internal clearance (C2) - minimizes play between rolling elements, ideal for high-precision assemblies.

• Double metal shields (ZZ) - protect against dust and fine particles, ensuring extended service life.

• High-speed performance - supports both radial and moderate axial loads with low friction.

• Durable steel construction - ensures dimensional stability and resistance to wear under continuous use.

• Compact and standard size - fits ISO-compliant housings and bearing units (20x32x7 mm).

Technical Data

Type: Deep groove ball bearing, single row
Brand: ZEN
Designation: 61804 ZZ C2
Internal diameter: 20 mm
Outer diameter: 32 mm
Width: 7 mm
Sealing: Double metal shields (ZZ)
Internal clearance: C2 (reduced clearance)
Material: High-grade bearing steel
Lubrication: Factory pre-lubricated, maintenance-free
Load capacity: Radial and moderate axial loads
Operating temperature: -30°C to +150°C
Applications: Electric motors, gearboxes, CNC spindles, pumps, and precision mechanical drives

Product Description

The ZEN 61804 ZZ C2 bearing represents a high-precision component designed for industries requiring exceptional rotational stability and minimal internal movement.
The C2 clearance class (tighter than standard CN) provides reduced noise and vibration, ensuring smooth, quiet, and efficient operation even at elevated speeds.

Its deep groove design allows it to handle both radial and axial loads effectively, while the ZZ steel shields prevent contaminants from entering the raceway.
The bearing is factory-lubricated with premium grease, enabling long-term, maintenance-free performance — a key advantage in modern automation and production systems.

ZEN bearings are known for their reliability, precision, and durability, making this model an ideal solution for OEM manufacturers, maintenance engineers, and industrial distributors seeking consistent quality and dimensional accuracy.

FAQ - Frequently Asked Questions

1. What does “C2” clearance mean in a bearing?
C2 means reduced internal clearance, providing tighter fit and higher precision — perfect for electric motors, spindles, and applications with minimal thermal expansion.

2. What is the difference between ZZ and 2RS bearings?
ZZ bearings have metal shields on both sides, while 2RS bearings use rubber seals. ZZ is preferred for high-speed applications where low friction is critical.

3. Is the bearing pre-lubricated?
Yes. The ZEN 61804 ZZ C2 is factory greased and ready to install — no additional lubrication is required under normal operating conditions.

4. Can this bearing handle axial loads?
Yes. As a deep groove ball bearing, it supports both radial and moderate axial loads, maintaining stability even under dynamic conditions.

5. Where is this bearing commonly used?
It’s used in electric motors, pumps, CNC drives, conveyors, and precision industrial machinery where quiet and efficient rotation is essential.