Bearings, units and housings -- Roller bearings -- Needle roller bearings -- Needle roller bearings with machined rings -- Needle roller bearings, with machined rings, without an inner ring SKF NK 21/20

NK 21/20

Dimensions

F_w		21	mm
D		29	mm
C		20	mm
r_1,2	min.	0.3	mm

Abutment dimensions

D_a	max.	27	mm
r_a	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	17.2	kN
Basic static load rating	C₀	27	kN
Fatigue load limit	P_u	3.35	kN
Reference speed		19000	r/min
Limiting speed		22000	r/min

Mass

Mass bearing

0.035

Associated products

Radial shaft seal with a low cross-sectional height, single lip

G 21x29x4

Model Number: NK 21/20
Inner Diameter：21mm Outer Diameter：29mm Width：20mm
Reference speed:22000 r/min Limiting speed:19000 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, without an inner ring
Update date：2026-04-16
Application:glass,chamfering machine etc,Cylinder Standard,electromagnetic clutch,animal anatomy,magnetic elements,Industrial,pipe fittings Steel industry,Material handling equipment,instrument,Control
Similar models:PSMF 162216 A51 6213 HN 1212 6210-2RS1/HC5C3WT NUP 215 ECML 1216 K + H 216 NUP 2214 ECML 7212 CD/HCP4A PCM 101215 M QJ 212 MA
BEARING POWER International Trading Co.,Ltd. specialize in NK21/20 products，there is large inventory of SKF NK 21/20 Needle roller bearings with machined rings. We has been built up long-term cooperation with SKF company, could make a bulk order of the NK 21/20 Which SKF NK21/20 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-23284 CAK/W33-OH 3284 H	400	760	272	Bearings, units and housings
29863	76.2	95.28	6.35	Seals
51102 V/HR11T1	15	28	9	Bearings, units and housings
7013 ACE/P4AH1	65	100	18	Bearings, units and housings
71964 AC	320	440	56	Bearings, units and housings
75x110x12 HMS5 V	75	110	12	Seals
AOH 241/1060	1000	1060	665	Bearings, units and housings
FYTB 20 FM	20	-	-	Bearings, units and housings
N 1014 KTNHA/HC5SP	70	110	20	Bearings, units and housings
NU 234 ECML	170	310	52	Bearings, units and housings
SAF 22618 x 3.1/8	79.375	-	-	Bearings, units and housings
SAF 23038 KA x 7	177.8	-	-	Bearings, units and housings

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