d - 4 mm

D - 9 mm

B - 2,5 mm

C - 2,5 mm

d1 - 5,2 mm

d2 - – mm

r1 min. - 0,1 mm

r2 min. - 0,1 mm

D1 - 7,5 mm

D2 - – mm

da min. - 4,8 mm

Da max. - 8,2 mm

ra max. - 0,1 mm

Weight - 0,0006 Kg

Basic dynamic load rating (C) - 0,364 kN

Basic static load rating (C0) - 0,114 kN

Fatigue load limit (Pu) - 0,005

Reference speed - 140000 r/min

Limiting speed - 85000 r/min

Calculation factor (f0) - 6,5

Calculation factor (kr) - 0,02

• Model Number: W618/4
• Inner Diameter：4mm Outer Diameter：9mm Width：2,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-11
• Application:manual Tools,printing equipment,survey accessories,lifting upgrade,hydraulic pump,crimping tools,Gas turbine,Machine Tool Accessories,food add,Medical equipment,food testing
• Similar models:ISB 618/1000MA SKF W61801 ISB 618/900MA ZEN S61817 ZEN S61817-2RS ISO 618/2 CRAFT 61810 NKE 61896-M NMB RIF-618 ZEN F61805-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in W618/4 products，there is large inventory of SKF W618/4 . We has been built up long-term cooperation with SKF company, could make a bulk order of the W618/4 Which SKF W618/4 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.

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  22234-E1-K + AH3134A	160	310	86	FAG	Spherical Roller Bearings
  23292R	460	830	296	KOYO	Spherical Roller Bearings
  2585/2520	33,338	66,421	25,4	CX	Tapered Roller Bearings
  49585/49520	50,8	101,6	31,75	NSK	Tapered Roller Bearings
  4T-32209	45	85	24,75	NTN	Tapered Roller Bearings
  7212BECBY	60	110	22	SKF	Angular Contact Ball Bearings
  GE 100 AW	100	210	59	INA	Plain Bearings
  ESPA204	20			SNR	Bearing Units
  JP-44-FV	6,35	11,112	6,35	NSK	Needle Roller Bearings
  NU309	45	100	25	NTN	Cylindrical Roller Bearings
  SAL08T/K	8			CRAFT	Plain Bearings
  NUP204	20	47	14	SKF	CYLINDRICAL ROLLER BEARINGS
  SL181844	220	270	24	INA	CYLINDRICAL ROLLER BEARINGS
  30222J2	110	200	38	SKF	TAPERED ROLLER BEARINGS
  AHX3122	110	105		STEYR	WITHDRAWAL SLEEVES
  324-SFF	120	260	55	MRC	DEEP GROOVE BALL BEARINGS
  7420XBMG	100	250	58	SKF	ANGULAR CONTACT BALL BEARINGS
  6010MP/5	50	80	16	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  6018MP/5	90	140	24	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  29460EM	300	540		CONSOLIDATED	SPHERICAL ROLLER THRUST BEARINGS