BRAND: KOYO

ID:  WJ162112 

Description:

Needle Roller & Cage Assembly – Koyo (JTEKT)

Brand: Koyo (JTEKT)
Item Number: WJ162112
Category: Needle Roller and Cage Assembly
Weight: 0.043 kg

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✅ Specifications

Attribute	Value
Seal	No Seal (Open)
Construction	Needle Roller & Cage Assembly
Cage	Steel Cage (standard Koyo type)

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📐 Dimensions

Dimension	Metric	Imperial
Inner Diameter (d)	25.40 mm	1.0000 in
Outer Diameter (D)	33.34 mm	1.3125 in
Width (B)	19.05 mm	0.7500 in

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⚙️ Application Notes

Needle roller & cage assemblies like this Koyo WJ series are designed for:

• High load capacity relative to size
• Compact radial bearing arrangements
• Applications where the shaft and housing act as raceways

Common uses include:

• Transmissions
• Pumps & hydraulic equipment
• Power tools
• Agricultural machinery
• Two-stroke engines / small engines

Requires a hardened and ground shaft/housing raceway if no inner ring is used.

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🌡️ Standard Operating Range

• Typically: −20°C to +120°C (based on Koyo standard ratings)