NACHI 2204-2RS Bearing — Specifications, Dimensions & Cross-Reference

The NACHI 2204-2RS is a self-aligning ball bearing double rubber sealed manufactured by NACHI. It belongs to the 2200 series and features dimensions of 20 × 47 × 18 mm (bore × OD × width). This bearing has a dynamic load rating of 12,700 N and a static load rating of 4,300 N, making it suitable for medium-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)20 mm
Outside Diameter (D)47 mm
Width (B)18 mm
Weight0.130 kg
Performance
Dynamic Load Rating (Cr)12,700 N
Static Load Rating (C₀r)4,300 N
Limiting Speed (Grease)11,000 rpm
Limiting Speed (Oil)14,000 rpm
💡 Application Note: The 2200 series bearings are commonly used in agricultural equipment, conveyor systems, and applications with moderate misalignment. The -2RS suffix indicates double rubber contact seals, providing excellent protection against dust, moisture, and contaminants — ideal for harsh operating environments.

Brand Cross-Reference — 2204-2RS Equivalents

The following bearings from other manufacturers are interchangeable with the NACHI 2204-2RS. All share identical dimensions (20×47×18mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
NACHINACHI 2204-2RS ✦12,7004,300
Timken Timken 2204-2RS 12,700 4,300
SKF SKF 2204-2RS 12,700 4,300
KOYO KOYO 2204-2RS 12,700 4,300
FAG FAG 2204-2RS 12,700 4,300
Timken Timken 2204-2RS 12,700 4,300
NSK NSK 2204-2RS 12,700 4,300
NTN NTN 2204-2RS 12,700 4,300
SKF SKF 2204-2RS 12,700 4,300

Available Variants

The NACHI 2204 base bearing is available in these configurations:

NACHI 2204-ZZ-C3
"Double shielded
NACHI 2204-ZZ
Double metal shielded
NACHI 2204-NR
Open with snap ring
NACHI 2204-C3
"Open
NACHI 2204-2Z
Double metal shielded (ISO)
NACHI 2204-2RS-C3
"Double sealed
NACHI 2204
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the NACHI 2204-2RS?

The NACHI 2204-2RS has a bore diameter of 20mm, outside diameter of 47mm, and width of 18mm. It weighs 0.130kg.

What is the load capacity of the NACHI 2204-2RS?

The dynamic load rating (Cr) is 12,700 N and the static load rating (C₀r) is 4,300 N. The maximum recommended speed is 11,000 rpm with grease lubrication or 14,000 rpm with oil lubrication.

What bearings are equivalent to NACHI 2204-2RS?

The 2204-2RS is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 20×47×18mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.