(dimensions in mm)

Bearing Type - Single Row

Outer Dia (D) - 29.0000

Width (B) - 20.0000

Dynamic Load Rating (Cr) - 17,100

Static Load Rating (Cor) - 25,500

Max Speed (Oil) (X1000 RPM) - 20,000

Shaft (Fw) - 21.000

Weight (g) - 35.20

Material - 52100 Chrome steel, or equivalent

The bearing must be used with a hardened inner ring, or a hardened shaft.

Some sizes are available with either a single seal or two seals.

• Model Number: NK21/20
• Inner Diameter：21mm Outer Diameter：29mm Width：20mm
• Type：Needle Roller Bearings
• Update date：2025-04-19
• Application:Display Devices,Forming mold,electric hydraulic lifting platform,steam Hydraulic control element,hydraulic pump,Industrial,equipment and,respirator,atomizer class,supporting facilities,gear type
• Similar models:Timken K17X21X10 NSK FJT-2218 ISO KBK14X18X21 NSK FBN-121616-E INA BXRE212 NSK MJ-12101 KOYO K45X50X21CH NSK LM152212 Timken MJ-14121 INA SCE3210
• BEARING POWER International Trading Co.,Ltd. specialize in NK21/20 products，there is large inventory of AST NK21/20 . We has been built up long-term cooperation with AST company, could make a bulk order of the NK21/20 Which AST 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	Brand	Type
  102DC75356	508	749,3	355,6	KOYO	Cylindrical Roller Bearings
  15580/15523	26,988	60,325	19,842	CX	Tapered Roller Bearings
  53305U+U305	25	52		ISO	Thrust Ball Bearings
  594A/593X	95,25	150	35,992	Fersa	Tapered Roller Bearings
  6302-Z	15	42	13	CYSD	Deep Groove Ball Bearings
  6805ZENR	25	37	7	NACHI	Deep Groove Ball Bearings
  689	9	17	4	ISO	Deep Groove Ball Bearings
  7317BECBP	85	180	41	SKF	Angular Contact Ball Bearings
  7324 B	120	260	55	CX	Angular Contact Ball Bearings
  NN3032K	160	219	60	NTN	Cylindrical Roller Bearings
  L860049/L860010	330,2	415,925	47,625	KOYO	Tapered Roller Bearings
  MUC208	40	80	49.2	NACHI	Deep Groove Ball Bearings
  NUP308 E	40	90	23	AST	Cylindrical Roller Bearings
  RNA 4909U	52	68	22	IKO	Needle Roller Bearings
  RNAO 22x35x16	22	29	16	NBS	Needle Roller Bearings
  YAR 214-2F	125	70	69,9	SKF	Deep Groove Ball Bearings
  6030Z	150	225	35	FAG	DEEP GROOVE BALL BEARINGS
  MUL405	25	80	21	Rollway	CYLINDRICAL ROLLER BEARINGS
  202-SG	15	35	11	MRC	DEEP GROOVE BALL BEARINGS
  K-45x50x18	45	50	18	CONSOLIDATED	NEEDLE BEARINGS