KOYO 6415-2Z Bearing — Specifications, Dimensions & Cross-Reference

The KOYO 6415-2Z is a deep groove ball bearing double metal shielded manufactured by KOYO. It belongs to the 6400 series and features dimensions of 75 × 190 × 45 mm (bore × OD × width). This bearing has a dynamic load rating of 163,000 N and a static load rating of 104,000 N, making it suitable for heavy-duty applications.

Technical Specifications

Dimensions
Bore Diameter (d)75 mm
Outside Diameter (D)190 mm
Width (B)45 mm
Weight4.95 kg
Performance
Dynamic Load Rating (Cr)163,000 N
Static Load Rating (C₀r)104,000 N
Limiting Speed (Grease)3,400 rpm
Limiting Speed (Oil)4,300 rpm
💡 Application Note: The 6400 series bearings are commonly used in heavy machinery, large industrial gearboxes, and high-load conveyor systems. The -2Z suffix indicates double metal shields, offering good protection while maintaining lower friction than rubber seals — suitable for higher speed applications.

Brand Cross-Reference — 6415-2Z Equivalents

The following bearings from other manufacturers are interchangeable with the KOYO 6415-2Z. All share identical dimensions (75×190×45mm) and comparable load ratings:

BrandPart NumberDynamic Load (N)Static Load (N)
KOYOKOYO 6415-2Z ✦163,000104,000
Timken Timken 6415-2Z 163,000 104,000
SKF SKF 6415-2Z 163,000 104,000
NTN NTN 6415-2Z 163,000 104,000
NACHI NACHI 6415-2Z 163,000 104,000
FAG FAG 6415-2Z 163,000 104,000
Timken Timken 6415-2Z 163,000 104,000
NSK NSK 6415-2Z 163,000 104,000
NTN NTN 6415-2Z 163,000 104,000
SKF SKF 6415-2Z 163,000 104,000

Available Variants

The KOYO 6415 base bearing is available in these configurations:

KOYO 6415-ZZ-C3
"Double shielded
KOYO 6415-ZZ
Double metal shielded
KOYO 6415-NR
Open with snap ring
KOYO 6415-C3
"Open
KOYO 6415-2RS-C3
"Double sealed
KOYO 6415-2RS
Double rubber sealed
KOYO 6415
Open (no seal/shield)

Frequently Asked Questions

What are the dimensions of the KOYO 6415-2Z?

The KOYO 6415-2Z has a bore diameter of 75mm, outside diameter of 190mm, and width of 45mm. It weighs 4.95kg.

What is the load capacity of the KOYO 6415-2Z?

The dynamic load rating (Cr) is 163,000 N and the static load rating (C₀r) is 104,000 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 6415-2Z?

The 6415-2Z is manufactured by multiple brands including SKF, NTN, NSK, FAG, Timken, KOYO, and NACHI. All versions share the same 75×190×45mm dimensions and are interchangeable in most applications. See the cross-reference table above for detailed comparisons.