Koyo JR55X63X25 — catalogue drawing of the needle roller bearing family

Koyo JR55X63X25 needle roller bearing inner ring

Name: Koyo JR55X63X25
Brand: Koyo
SKU: JR55X63X25

Koyo JR55X63X25 needle roller bearing inner ring: width 25 mm, bore d 55 mm, shaft diameter 55 mm; cross-references: IKO LRT556325, INA IR55X63X25.

Needle roller bearing inner rings · All Koyo part numbers

Figure © Koyo, clipped unaltered from Koyo Ball & Roller Bearings catalog B2001E-6 — Standard Bearings section (B2001E-6b). It illustrates the product family printed there, which may include other sizes. Removed on request.

Specifications

Width	25 mm
Bore d	55 mm
Shaft diameter	55 mm
Raceway diameter F	63 mm
Mass	0.141 kg
Product type	Needle roller bearing inner rings, metric series

All specifications: Verifiedprinted in Koyo’s own catalogue

Cross-references

Part	Manufacturer	Relationship	Evidence
LRT556325	IKO	Dimensional interchange	Single sourcestated by Koyo; not corroborated

IR55X63X25	INA	Dimensional interchange	Single sourcestated by Koyo; not corroborated

Koyo: 'Dimensional interchangeability only. This does not imply interchangeable in all respects.' (Metric NRB Interchange Guide p18)

Documents

Koyo Ball & Roller Bearings catalog B2001E-6 — Standard Bearings section (B2001E-6b)Koyo · catalogue page · this part appears onp233

Documents open on the publisher's own site; we link them and never host a copy.

Related parts

Sources

Koyo Metric NRB Interchange Guide (Koyo / INA / IKO needle roller bearings)Koyo · cross-reference tool · p8 · supports cross-references
Koyo Ball & Roller Bearings catalog B2001E-6 — Standard Bearings section (B2001E-6b)Koyo · catalogue page · p233 · supports specifications