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

NU 321 ECML

SKF Explorer

Dimensions

d		105	mm
D		225	mm
B		49	mm
D₁	≈	190	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		5600	r/min
Calculation factor	k_r	0.23
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

9.5

Model Number: NU 321 ECML
Inner Diameter：105mm Outer Diameter：225mm Width：49mm
Reference speed:5600 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：2026-06-25
Application:medical equipment,Garment Accessories,other rubber,wall industry,chemical raw materials and reagents,Laser Measurements,steam Hydraulic control element,dynamic blood pressure,plastic molding,Machine tools,Gear grinding machine
Similar models:33215 3217 A 33210/DF 33219 3214 A-2Z 3212 A-2Z 3216 A 3212 A-2RS1TN9/MT33 332129 A/HA4 6321-2Z
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Model No. Inner Diameter Outer Diameter Width Type

13x28x7 CRS1 R
6222 M/C3VL0241
71924 CD/P4AL
NJ 230 ECJ
SAF 22632

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Hot number： 10x19x7 HMS5 V1 2303 BD-23188 CAK/W33-OH 3188 H 308-ZNR 33218 61811-2RS1 6211/HR22Q2 7024 ACD/P4AL 7303 BE-2RZP 7308 BECBM 99475 SI 50 TXE-2LS SNL 3264 G SSAFS 22238 TLC WS 81152

Model No.	Inner Diameter	Outer Diameter	Width	Type
13x28x7 CRS1 R
6222 M/C3VL0241
71924 CD/P4AL
NJ 230 ECJ
SAF 22632