Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NU 321 ECP

NU 321 ECP

SKF Explorer

Dimensions

d		105	mm
D		225	mm
B		49	mm
D₁	≈	189	mm
F		133	mm
r_1,2	min.	3	mm
r_3,4	min.	3	mm
s	max.	3.4	mm

Abutment dimensions

d_a	min.	119	mm
d_a	max.	129	mm
d_b	min.	136	mm
D_a	max.	209.4	mm
r_a	max.	2.5	mm
r_b	max.	2.5	mm

Calculation data

Basic dynamic load rating	C	500	kN
Basic static load rating	C₀	500	kN
Fatigue load limit	P_u	57	kN
Reference speed		3200	r/min
Limiting speed		3800	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

8.5

Model Number: NU 321 ECP
Inner Diameter：105mm Outer Diameter：225mm Width：49mm
Reference speed:3800 r/min Limiting speed:3200 r/min
Type：Bearings, units and housings Roller bearings Cylindrical roller bearings Single row cylindrical roller bearings
Details： Single row cylindrical roller bearings Cylindrical roller bearings, single row
Update date：2026-08-25
Application:molding machine,Handling machinery and various industrial machinery,auto tools,quality inspection equipment,industry test,mechanical annex,power protection,security equipment,Hair styling device,blood cell reagent,flexible processing
Similar models:53217 + U 217 30321 3213 A-2RS1 33217 7321 BEGAM 3212 A 3211 A 3213 A-2Z 33210 332168
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Model No. Inner Diameter Outer Diameter Width Type

6240 M
71924 ACE/HCP4AH1
99851
FSAF 22518
W 604 R-2Z

Purchase the SKF NU 321 ECP Cylindrical roller bearings, single row Please fill in the following

Hot number： 22647 3309 A-2Z 4210 ATN9 6011 NR 7019 CD/HCP4A 708 CD/P4AH 71909 ACE/P4AH1 FSAF 1617 KR 32 PPA NU 2205 ECP NKIA 5908 RLS 8-2RS1 S7017 CB/HCP4A SAF 22526 x 4.5/16 TLC SAFS 23028 KATLC x 4.15/16

Model No.	Inner Diameter	Outer Diameter	Width	Type
6240 M
71924 ACE/HCP4AH1
99851
FSAF 22518
W 604 R-2Z