Koyo JR45X55X22 — catalogue drawing of the needle roller bearing family

Koyo JR45X55X22 needle roller bearing inner ring

Koyo JR45X55X22 needle roller bearing inner ring: width 22 mm, bore d 45 mm, raceway diameter F 55 mm; cross-reference: INA IR45X55X22.

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.

Drawing: BearingLookup, to the printed bore d, raceway diameter F and width B cited in the specifications below; internal detail is illustrative.

Specifications

Width	22 mm
Bore d	45 mm
Raceway diameter F	55 mm
Mass	0.135 kg
Product type	Needle roller bearing inner rings, metric series

All specifications: Verified printed in Koyo’s own catalogue

Cross-references

	Part	Manufacturer	Relationship	Evidence
	IR45X55X22	INA	Dimensional interchange	Single source stated 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 onp232

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 · p232 · supports specifications