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：2026-04-16
Application:blood cell reagent,mechanical annex,Forklift industry,medical equipment,nail products,motor,Film machine,Vertical pull,Cylinder Pneumatic Treatment Element,internal combustion engine,electromagnet
Similar models:6321 3213 A-2RS1 332168 33216/DF 3211 ATN9 23218 CC/W33 3212 A-2RS1 3215 A-2Z 3212 A-2RS1TN9/MT33 3213 A
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Model No.	Inner Diameter	Outer Diameter	Width	Type
20x40x7 HMS5 V	20	40	7	Seals
TDI design	501.65	711.2	-	Bearings, units and housings
419000	1720	-	-	Seals
607/HR11QN	7	19	6	Bearings, units and housings
6212-Z	60	110	22	Bearings, units and housings
7011 CD/HCP4A	55	90	18	Bearings, units and housings
99875	75	83.947	26.0096	Seals
AXK 3552	35	52	2	Bearings, units and housings
BT2B 332605 A/HA1	501.65	711.2	-	Bearings, units and housings
FY 25 WF	25	-	-	Bearings, units and housings
NKI 55/35	55	72	35	Bearings, units and housings
RNA 4902.2RS	20	28	13	Bearings, units and housings

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