d - 17 mm

D - 30 mm

B - 7 mm

d₁ - - 21 mm

D₂ - - 27.8 mm

r_1,2 - min. - 0.3 mm

d_a - min. - 19 mm

D_a - max. - 28.5 mm

r_a - max. - 0.3 mm

Basic dynamic load rating - C - 4 kN

Basic static load rating - C₀ - 2.6 kN

Fatigue load limit - P_u - 0.108 kN

Reference speed - 50000 r/min

Limiting speed - 32000 r/min

Calculation factor - k_r - 0.025

Calculation factor - f₀ - 14.8

Mass bearing - 0.0161 kg

• Model Number: W 61903
• Inner Diameter：30mm Outer Diameter：17mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-21
• Application:boring bar boring bar,large agricultural machinery,EEG,flow control valve,safety testing,Other Machine Tools,Food testing,roller lathe,Microwave Equipment,heating fans,Vertical machining
• Similar models:SKF W61903-2Z CRAFT 61903-2RS ISO 61903 SKF W61903R ZEN S61903 SKF W61903 ISB 61903-ZZ ZEN F61903 ZEN 61903-2Z ZEN 61903-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in W61903 products，there is large inventory of SKF W 61903 . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 61903 Which SKF W61903 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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  1314-K	70	150	35	NKE	Self-Aligning Ball Bearings
  30211A	55	100	22,75	SNR	Tapered Roller Bearings
  31322-X-N11CA	110	240	126	FAG	Tapered Roller Bearings
  32011-X	55	90	23	FAG	Tapered Roller Bearings
  61926-2RS	130	180	24	ZEN	Deep Groove Ball Bearings
  6219	95	170	32	KOYO	Deep Groove Ball Bearings
  7016 A-UO	80	125	44	CX	Angular Contact Ball Bearings
  7206T2G/GMP42	30	62	16	NTN	Angular Contact Ball Bearings
  CX347				CX	Wheel Bearings
  GE 800 DW-2RS2	800	1060	355	INA	Plain Bearings
  GEZ127ES	127	196,85	111,125	FBJ	Plain Bearings
  MJ1.1/4-N	31.75	79,375	22,225	RHP	Deep Groove Ball Bearings
  MR526832	82,55	107,95	50,8	NTN	Needle Roller Bearings
  N1016	80	125	22	KOYO	Cylindrical Roller Bearings
  PCFTR30	30			INA	Bearing Units
  RNAO40x55x20	40	55		CX	Cylindrical Roller Bearings
  UKFS328H	125			SNR	Bearing Units
  B71918-C-2RS-P4S-UL	90	125	18	FAG	ANGULAR CONTACT BALL BEARINGS
  MJT91/2	9.5000	18.0000	3.2500	RHP	ANGULAR CONTACT BALL BEARINGS
  MI-15-N	.9375		1.0100	McGill	NEEDLE BEARINGS