Bearings, units and housings -- Roller bearings -- Needle roller bearings -- Needle roller bearings with machined rings -- Needle roller bearings, with machined rings, with an inner ring SKF NAO 40x55x17

NAO 40x55x17

Dimensions

d		40	mm
D		55	mm
B		17	mm
E		50	mm
F		45	mm
r_1,2	min.	0.3	mm
s	max.	0.8	mm

Abutment dimensions

d_a		49.2	mm
d_b		44.5	mm
D_a		50.5	mm
D_b		45.6	mm
r_a	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	21.6	kN
Basic static load rating	C₀	46.5	kN
Fatigue load limit	P_u	5.6	kN
Reference speed		9000	r/min
Limiting speed		10000	r/min

Mass

Mass bearing

0.13

Model Number: NAO 40x55x17
Inner Diameter：40mm Outer Diameter：55mm Width：17mm
Reference speed:10000 r/min Limiting speed:9000 r/min
Type：Bearings, units and housings Roller bearings Needle roller bearings Needle roller bearings with machined rings
Details： Needle roller bearings with machined rings Needle roller bearings, with machined rings, with an inner ring
Update date：2026-04-20
Application:spreader series,Pump,Spectrum Products,powder metallurgy,Hair styling device,agricultural testing and analysis equipment and related,Insect Count,Storage Device,machine tool spindle,wall industry,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving
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SYF 35 FM	35	-	-	Bearings, units and housings
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YEL 205-2F	25	52	34.9	Bearings, units and housings

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