KOYO 6218 Bearing — Specifications, Dimensions & Cross-Reference

The KOYO 6218 is a deep groove ball bearing manufactured by KOYO. It belongs to the 6200 series and features dimensions of 90 × 160 × 30 mm (bore × OD × width). This bearing has a dynamic load rating of 95,600 N and a static load rating of 73,500 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)	90 mm
Outside Diameter (D)	160 mm
Width (B)	30 mm
Weight	1.800 kg

Performance
Dynamic Load Rating (Cr)	95,600 N
Static Load Rating (C₀r)	73,500 N
Limiting Speed (Grease)	3,400 rpm
Limiting Speed (Oil)	4,300 rpm

💡 Application Note: The 6200 series bearings are commonly used in electric motors, agricultural machinery, conveyors, and automotive components.

Brand Cross-Reference — 6218 Equivalents

The following bearings from other manufacturers are interchangeable with the KOYO 6218. All share identical dimensions (90×160×30mm) and comparable load ratings:

Brand	Part Number	Dynamic Load (N)	Static Load (N)
KOYO	KOYO 6218 ✦	95,600	73,500
NACHI	NACHI 6218	95,600	73,500
Timken	Timken 6218	95,600	73,500
FAG	FAG 6218	95,600	73,500
NSK	NSK 6218	95,600	73,500
NTN	NTN 6218	95,600	73,500
SKF	SKF 6218	95,600	73,500

Available Variants

The KOYO 6218 base bearing is available in these configurations:

KOYO 6218-NR

Open with snap ring

KOYO 6218-ZZ-C3

Double shielded, C3 clearance

KOYO 6218-2RS-C3

Double sealed, C3 clearance

KOYO 6218-C3

Open, C3 clearance

KOYO 6218-2Z

Double metal shielded (ISO)

KOYO 6218-ZZ

Double metal shielded

KOYO 6218-2RS

Double rubber sealed

Frequently Asked Questions

What are the dimensions of the KOYO 6218?

The KOYO 6218 has a bore diameter of 90mm, outside diameter of 160mm, and width of 30mm. It weighs 1.800kg.

What is the load capacity of the KOYO 6218?

The dynamic load rating (Cr) is 95,600 N and the static load rating (C₀r) is 73,500 N. The maximum recommended speed is 3,400 rpm with grease lubrication or 4,300 rpm with oil lubrication.

What bearings are equivalent to KOYO 6218?

The 6218 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 90×160×30mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.