(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：2025-12-12
• Application:sanitation facilities,water protection,dye pigments,decoration machinery,hydraulic cylinder,chromatography,Pneumatic Control Valves,hot and cold box,Broadcasting System,electrocardiograph,Forklift industry
• Similar models:IKO KT162212 INA F-214023 SKF BK1210 NTN K25X30X21.8 NSK MJ-28121 IKO TAF212916 INA S2212 IKO KT121510 NBS K16x21x10 ISO K17x21x10
• 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
  625ZZ	5	16	5	KOYO	Deep Groove Ball Bearings
  6328	140	300	62	NSK	Deep Groove Ball Bearings
  71924 CD/HCP4AH1	165	120	22	SKF	Angular Contact Ball Bearings
  71932 ACD/P4AL	220	160	28	SKF	Angular Contact Ball Bearings
  AST40 260100	260	265		AST	Plain Bearings
  EXPE216	80			SNR	Bearing Units
  F685ZZ	5	11	5	ISO	Deep Groove Ball Bearings
  GE900DO	900	1180	375	ISO	Plain Bearings
  KBA035	88,9	104,775	7,938	KOYO	Angular Contact Ball Bearings
  K40x47x20	40	47	20	ISO	Needle Roller Bearings
  LMKP35L	35	52		Samick	Linear Bearings
  NCF1844 V	220	270	24	ISO	Cylindrical Roller Bearings
  N 306 ECP	72	30	19	SKF	Thrust Ball Bearings
  NN3126 K	130	210	64	CX	Cylindrical Roller Bearings
  NU2328E	140	300	102	NTN	Cylindrical Roller Bearings
  PCM 9510060 E	95	100	60	SKF	Plain Bearings
  SCE45	6,35	11,112	7,938	INA	Needle Roller Bearings
  UCFS313	65			KOYO	Bearing Units
  RL-26	3.2500	6.0000	1.0625	FAG	SELF
  5410	50	130	58.74	FAF	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS