d - 20 mm

D - 52 mm

B - 15 mm

C - 15 mm

r min. - 1,1 mm

Weight - 0,18 Kg

Basic dynamic load rating (C) - 47 kN

Basic static load rating (C0) - 33,5 kN

(Grease) Lubrication Speed - 11000 r/min

(Oil) Lubrication Speed - 14000 r/min

Calculation factor (e) - 0,31

Calculation factor (Y0) - 2,15

Calculation factor (Y1) - 2,2

Calculation factor (Y2) - 3,27

• Model Number:21304EK
• Inner Diameter：20mm Outer Diameter：52mm Width：15mm
• Type：Cylindrical Roller Bearings
• Update date：2025-12-30
• Application:pump industry,paper processing machine,hydraulic cylinder,CNC,metallurgy,Plastic Equipment,Medium and large motor,vacuum suction cup,hydraulic pressure gauge,insect experimental analysis instrument,coupling type
• Similar models:ISB FCD92130424 NACHI 21304EK NACHI 21304E ISB FCD92130470
• BEARING POWER International Trading Co.,Ltd. specialize in 21304EK products，there is large inventory of NACHI 21304EK . We has been built up long-term cooperation with NACHI company, could make a bulk order of the 21304EK Which NACHI 21304EK 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
  240/1000B	1000	1420	412	NTN	Spherical Roller Bearings
  24126W33	130	210	80	ISO	Spherical Roller Bearings
  29264-E1-MB	320	440	73	FAG	Thrust Roller Bearings
  4T-25577/25523	42,875	82,931	26,988	NTN	Tapered Roller Bearings
  40TAB09DB-2LR	40	90	20	NACHI	Thrust Ball Bearings
  5206SCLLD	30	62	23,8	NTN	Angular Contact Ball Bearings
  6301ZENR	12	37	12	NACHI	Deep Groove Ball Bearings
  7976A	380	520	65	NSK	Angular Contact Ball Bearings
  B71924-E-T-P4S	120	165	22	FAG	Angular Contact Ball Bearings
  BK0912	9	13	12	NTN	Needle Roller Bearings
  CRD-6115	305,105	599,968	170,434	NTN	Tapered Roller Bearings
  NJ1018	90	140	24	CX	Cylindrical Roller Bearings
  QJ304-MPA	20	52	15	NKE	Angular Contact Ball Bearings
  W 61901-2Z	24	12	6	SKF	Deep Groove Ball Bearings
  SDM20	20	32	30,5	KOYO	Linear Bearings
  SIGEW50ES	50			LS	Plain Bearings
  USC206	30			SNR	Bearing Units
  E2310B/U	50	110	40	Rollway	CYLINDRICAL ROLLER BEARINGS
  6121PP	105	160	26	NH	DEEP GROOVE BALL BEARINGS
  52332				CONSOLIDATED	THRUST BALL BEARINGS