Durable heavy duty needle roller bearing inner ring built in chrome steel with a precise 1.6875 inch bore and 2.0 inch outer diameter for reliable fit, high load capacity, and long life; Koyo IR 273216 delivers separable inner ring performance

IR-273216 Separable needle roller inner ring for duty
✔️ Inner ring only, needle bearing, bore 1.6875 in, pack 1

Koyo IR-273216 inner ring is the separable inner component of a needle roller bearing. It is designed to fit with compatible outer races (e.g., HJ-324116) in heavy-duty machinery, providing compact high-load support and easy maintenance.

✅ Bore diameter: 1.6875 in (42.82 mm)
✅ Outside diameter: 2.0000 in (50.80 mm)
✅ Width: 25.4 mm (1.00 in)
✅ Material: Chrome Steel
✅ Series: IR
✅ Minimum radius: 1.52 mm (0.060 in)
✅ Lubrication hole: No lubrication hole
✅ Standards met: ASTM F-2431
✅ Compatible bearing: HJ-324116
✅ Closure type: N/A
✅ Type: Separable inner ring only
✅ Weight: 0.25 lbs

Bore diameter	42.82 mm	1.6875 in
Outside diameter	50.80 mm	2.0000 in
Width	25.40 mm	1.00 in
Minimum radius	1.52 mm	0.060 in

💡 What is a needle roller bearing inner ring used for in heavy machinery? A handy overview:

- High load capacity in compact spaces - Guides precise motion in linear or rotating assemblies - Common in presses, conveyors, and gearboxes - Replacements in separable inner ring designs