NTN Bearing Corp. of America - Self-Aligning Needle Roller Bearings - w/o Inner Ring - Compare Items

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Items	RPNA15/28R Self-Aligning Needle Roller Bearings - w/o Inner Ring	RPNA18/32R Self-Aligning Needle Roller Bearings - w/o Inner Ring	RPNA20/35R Self-Aligning Needle Roller Bearings - w/o Inner Ring	RPNA25/42R Self-Aligning Needle Roller Bearings - w/o Inner Ring	RPNA28/44R Self-Aligning Needle Roller Bearings - w/o Inner Ring
Type	N/A Self-Aligning Needle Roller Bearing
Configuration	N/A One
Bearing Design	N/A w/o Inner Ring
Material	N/A High Carbon Chrome Steel
Limiting Speed - Oil	N/A 24000 RPM	N/A 22000 RPM	N/A 21000 RPM	N/A 18000 RPM	N/A 16000 RPM
Limiting Speed - Grease	N/A 14000 RPM	N/A 13000 RPM	N/A 12500 RPM	N/A 10500 RPM	N/A 9500 RPM
Fw	N/A 0.5906 in15.000 mm	N/A 0.7087 in18.000 mm	N/A 0.7874 in20.000 mm	N/A 0.9843 in25.000 mm	N/A 1.1024 in28.000 mm
D	N/A 1.1024 in28.000 mm	N/A 1.2598 in32.000 mm	N/A 1.3780 in35.000 mm	N/A 1.6535 in42.000 mm	N/A 1.7323 in44.000 mm
D1	N/A 0.9646 in24.500 mm	N/A 1.0630 in27.000 mm	N/A 1.2008 in30.500 mm	N/A 1.4370 in36.500 mm	N/A 1.5157 in38.500 mm
C	N/A 0.4724 in12.000 mm	N/A 0.6299 in16.000 mm	N/A 0.6299 in16.000 mm	N/A 0.7874 in20.000 mm	N/A 0.7874 in20.000 mm
r1	N/A 0.0315 in0.8 mm
Precision	N/A ISO Class 0
Enclosure	N/A Open
Static Load Rating	N/A 1760 lbf7850 N7.85 kN	N/A 3650 lbf16200 N16.20 kN	N/A 3950 lbf17500 N17.50 kN	N/A 6850 lbf30500 N30.50 kN	N/A 7650 lbf34000 N34.00 kN
Dynamic Load Rating	N/A 1580 lbf7050 N7.05 kN	N/A 2860 lbf12700 N12.70 kN	N/A 2970 lbf13200 N13.20 kN	N/A 4300 lbf19200 N19.20 kN	N/A 5000 lbf22300 N22.30 kN
Weight	N/A 0.071 lb0.032 kg	N/A 0.115 lb0.052 kg	N/A 0.137 lb0.062 kg	N/A 0.240 lb0.109 kg	N/A 0.247 lb0.112 kg
Operating Temperature Range	N/A