(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：2025-12-10
• Application:ventilator anesthesia machine etc,quality inspection equipment,food sterilization,Dental Drill etc,test strip,water protection,Forklift industry,Hairbrush device,chamfering machine etc,,lifting tackle
• Similar models:NTN BK2212 IKO NAF102213 NSK MJ-18121 CRAFT HK162109 NBS HK2210 KOYO NA2100 KOYO HJ-142216,2RS IKO KTV121615,5EG KOYO 26NQ5214 NTN K17×21×13S
• 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
  239/710 KCW33+H39/710	710	950	180	ISO	Spherical Roller Bearings
  32312	60	130	48,5	NKE	Tapered Roller Bearings
  52415	60	160	115	KOYO	Thrust Ball Bearings
  62205-2RS	25	52	18	CX	Deep Groove Ball Bearings
  90FS130	90	130	50	Timken	Plain Bearings
  AB40320	50	72	13	SNR	Deep Groove Ball Bearings
  BTHB1861887AA	35	68	50	SKF	Tapered Roller Bearings
  E5034NRNT	170	260	122	NACHI	Cylindrical Roller Bearings
  FL617/3	3	6	2	CX	Deep Groove Ball Bearings
  GEG8E	8	19		AST	Plain Bearings
  KJ41X46X28.6	41,000	46,000		NTN	Needle Roller Bearings
  K35X45X49H	35	45		KOYO	Needle Roller Bearings
  NJ2305EG15	25,000	62,000	24,000	SNR	Cylindrical Roller Bearings
  PCZ 5648 M	88,9	93,663	76,2	SKF	Plain Bearings
  MUCF213	65			AMI	STAINLESS STEEL PILLOW BLOCKS
  NA49/28	28	45	17	SKF	NEEDLE BEARINGS
  ER-48	5.5118	3.0000	1.6875	Sealmaster	BALL BEARING
  SN-622..22322-K	100		130	CONSOLIDATED	PILLOW BLOCKS
  SD-3140180mm	180			CONSOLIDATED	PILLOW BLOCKS
  N-130M	150	235	38	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS