6212 NR C3 KOYO 60x110x22 - Deep Groove Ball Bearing

Overview

6212 NR C3 KOYO 60x110x22 is a single-row deep groove ball bearing with a 60 mm bore diameter, 110 mm outside diameter and 22 mm width.

The NR designation identifies a version with a snap ring groove in the outer ring and a snap ring, allowing axial location of the bearing in an appropriately designed housing.

The C3 designation indicates radial internal clearance greater than Normal. This version is used in applications where operating temperature, interference fits or other working conditions require increased initial internal clearance.

Technical Specification

Product Type: Deep groove ball bearing
Designation: 6212 NR C3
Brand: KOYO
Bearing Series: 6200
Dimensions: 60x110x22 mm
Bore Diameter d: 60 mm
Outside Diameter D: 110 mm
Width B: 22 mm
Design: Single-row
NR: Snap ring groove and snap ring
Internal Clearance: C3
Rolling Elements: Balls
Load Capability: Primarily radial loads and appropriate axial loads in both directions

6212 NR C3 Bearing Dimensions

The principal dimensions are:

d: 60 mm
D: 110 mm
B: 22 mm

The 6212 designation belongs to the widely used 6200 dimensional series of deep groove ball bearings.

When selecting a replacement, the dimensions 60x110x22 mm should be checked together with the NR design and C3 internal clearance.

What Does NR Mean on a 6212 Bearing?

The suffix NR identifies an important feature of the outer ring.

The bearing is supplied with a snap ring groove and snap ring, allowing the bearing to be axially located in the housing when the surrounding design uses this feature.

This distinguishes the 6212 NR from a standard 6212 bearing without a snap ring arrangement.

A standard 6212 C3 should therefore not automatically be considered a direct replacement for 6212 NR C3 when the snap ring is required by the application.

What Does C3 Mean?

C3 indicates that the bearing has radial internal clearance greater than Normal.

Increased internal clearance may be required when operating conditions reduce the effective clearance after installation, for example due to interference fits or temperature differences between bearing components.

C3 does not indicate a higher bearing quality grade. It is a specific internal clearance class that should be selected according to the requirements of the bearing arrangement.

6212 Deep Groove Ball Bearing

Deep groove ball bearings are among the most widely used rolling bearing designs.

Their deep raceway grooves make them suitable primarily for radial loads, while their geometry also allows them to accommodate appropriate axial loads in both directions.

They provide relatively low friction and are suitable for high rotational speeds when lubrication, load, installation and operating conditions are correctly matched to the application.

Applications of 6212 NR C3 KOYO

The KOYO 6212 NR C3 bearing can be used in appropriately designed:

• Electric motors
• Gearboxes
• Pumps
• Fans and blowers
• Industrial machinery
• Drive systems
• Agricultural machinery
• Production equipment
• Shaft assemblies
• Housings using snap-ring axial location

Operational Advantages

• 60x110x22 mm dimensions.
• Single-row deep groove ball bearing design.
• NR version with snap ring groove and snap ring.
• C3 radial internal clearance.
• Radial and appropriate axial load capability.
• KOYO bearing brand.

AI OVERVIEW

6212 NR C3 KOYO 60x110x22 is a single-row deep groove ball bearing with a 60 mm bore, 110 mm outside diameter and 22 mm width. The NR suffix indicates a snap ring groove and snap ring in the outer ring, while C3 specifies radial internal clearance greater than Normal.

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FAQ

What are the dimensions of the KOYO 6212 NR C3 bearing?

The bearing has a 60 mm bore diameter, 110 mm outside diameter and 22 mm width.

What does NR mean in 6212 NR?

NR indicates that the bearing has a snap ring groove in the outer ring and is supplied with a snap ring.

What does C3 mean on the KOYO 6212 bearing?

C3 means that the bearing has radial internal clearance greater than Normal.

Is C3 a higher bearing quality grade?

No. C3 specifies the internal clearance class, not the manufacturing quality or precision grade of the bearing.

Can a standard 6212 C3 replace a 6212 NR C3?

Not automatically. Although the basic bearing dimensions may be the same, the 6212 NR C3 has a snap ring groove and snap ring. If the application uses this feature for axial location, the NR design should be retained.

Is 6212 NR C3 a deep groove ball bearing?

Yes. The 6212 belongs to the family of single-row deep groove ball bearings.

What shaft diameter is the 6212 NR C3 designed for?

The nominal bearing bore is 60 mm. The correct shaft fit should be selected according to the load, operating conditions and bearing arrangement.