NACHI 6324 Bearing — Specifications, Dimensions & Cross-Reference

The NACHI 6324 is a deep groove ball bearing manufactured by NACHI. It belongs to the 6300 series and features dimensions of 120 × 260 × 55 mm (bore × OD × width). This bearing has a dynamic load rating of 208,000 N and a static load rating of 186,000 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)120 mm
Outside Diameter (D)260 mm
Width (B)55 mm
Weight9.800 kg
Performance
Dynamic Load Rating (Cr)208,000 N
Static Load Rating (C₀r)186,000 N
Limiting Speed (Grease)2,400 rpm
Limiting Speed (Oil)3,000 rpm
💡 Application Note: The 6300 series bearings are commonly used in heavy-duty electric motors, mining equipment, construction machinery, and industrial gearboxes.

Brand Cross-Reference — 6324 Equivalents

The following bearings from other manufacturers are interchangeable with the NACHI 6324. All share identical dimensions (120×260×55mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
NACHINACHI 6324 ✦208,000186,000
Timken Timken 6324 208,000 186,000
SKF SKF 6324 208,000 186,000
NTN NTN 6324 208,000 186,000
KOYO KOYO 6324 208,000 186,000
FAG FAG 6324 208,000 186,000
Timken Timken 6324 208,000 186,000
NSK NSK 6324 208,000 186,000
SKF SKF 6324 208,000 186,000
NTN NTN 6324 208,000 186,000

Available Variants

The NACHI 6324 base bearing is available in these configurations:

NACHI 6324-ZZ-C3
"Double shielded
NACHI 6324-ZZ
Double metal shielded
NACHI 6324-NR
Open with snap ring
NACHI 6324-2Z
Double metal shielded (ISO)
NACHI 6324-2RS-C3
"Double sealed
NACHI 6324-2RS
Double rubber sealed

Frequently Asked Questions

What are the dimensions of the NACHI 6324?

The NACHI 6324 has a bore diameter of 120mm, outside diameter of 260mm, and width of 55mm. It weighs 9.800kg.

What is the load capacity of the NACHI 6324?

The dynamic load rating (Cr) is 208,000 N and the static load rating (C₀r) is 186,000 N. The maximum recommended speed is 2,400 rpm with grease lubrication or 3,000 rpm with oil lubrication.

What bearings are equivalent to NACHI 6324?

The 6324 is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 120×260×55mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.