6700 Series Deep Groove Ball Bearing Guide: Specs, Differences & Replacement

Deep groove ball bearings are widely used in motors, small machinery, and industrial applications due to their versatility and durability. The 6700 series is a popular choice for its compact size (10x15x4mm) and reliable performance.

1. 6700 Deep Groove Ball Bearing Specifications & Dimensions

Engineers, maintenance technicians, and procurement specialists frequently search for precise bearing specifications to ensure compatibility with their machinery. This section provides the essential technical details of the 6700 series.

Key Specifications
Model: 6700 series deep groove ball bearing
Dimensions (mm): 10 (ID) x 15 (OD) x 4 (Width)

Load Capacity:
Dynamic Load Rating: ~1.3 kN
Static Load Rating: ~0.6 kN

Material: Typically chrome steel (GCr15) or stainless steel for corrosion resistance
Speed Limit: Up to 30,000 RPM (depends on lubrication and sealing)

Common Applications
Small electric motors
Power tools
Robotics and drones
Automotive components

2. 6700-2RS vs 6700-ZZ: Key Differences in Sealed Bearings

Choosing the right sealing type (2RS or ZZ) affects bearing lifespan and performance in different environments. This comparison helps users make an informed decision.

Comparison Table

Which One Should You Choose?

Use 6700-2RS if: Operating in wet, dusty, or dirty conditions (e.g., outdoor machinery, washing machines).
Use 6700-ZZ if: High-speed applications with minimal contamination (e.g., small motors, precision instruments).

3. How to Replace a 6700 Bearing in Motors & Small Machinery

Bearing failure is common in motors and mechanical systems. A proper replacement guide helps technicians avoid mistakes and extend equipment life.

Step-by-Step Replacement Guide
Tools Needed:
Bearing puller (or small press)
Heat gun (optional, for tight fits)

Clean workspace
New 6700 bearing (correct sealing type)

Steps:
Disassemble the Housing – Remove any retaining clips or screws securing the bearing.

Extract the Old Bearing – Use a puller or press to avoid damaging the shaft.

Clean the Shaft & Housing – Remove debris and old lubricant.

Install the New Bearing – If tight, heat the bearing (80-100°C) for easier fitting.
Press evenly to avoid misalignment.

Reassemble & Lubricate – Apply grease if needed (except for pre-lubricated sealed bearings).

Common Mistakes to Avoid
Hammering the bearing (can damage races).
Misalignment during installation (leads to premature wear).
Using incorrect sealing type (causes contamination or overheating).