d - 17 mm

D - 30 mm

B - 7 mm

d₁ - - 21 mm

D₁ - - 26.8 mm

D₂ - - 27.8 mm

D₃ - 32.5 mm

C - 1.5 mm

r_1,2 - min. - 0.3 mm

d_a - min. - 19 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 - 0.0175 kg

• Model Number: W 61903 R
• Inner Diameter：30mm Outer Diameter：17mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-18
• Application:food packaging,transistor fittings,Pneumatic Control Elements,industrial equipment,powder metallurgy,ultra-quiet generators,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,Hair styling device,engineering machinery,stacker lift platform,small diesel generators
• Similar models:ZEN 61903-Z.T9H.C3 SKF W61903-2RS1 ISB SS61903-ZZ ZEN S61903-2Z SKF W61903-2Z ISB 61903-ZZ NKE 61903-2Z CX 61903ZZ FAG 61903-2RSR ZEN 61903
• BEARING POWER International Trading Co.,Ltd. specialize in W61903R products，there is large inventory of SKF W 61903 R . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 61903 R Which SKF W61903R 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
  222S.207	61,913	130	31	FAG	Spherical Roller Bearings
  23134-2CS5K/VT143	280	170	88	SKF	Spherical Roller Bearings
  23952CAE4	260	360	75	NSK	Spherical Roller Bearings
  49576/49520	44,45	101,6	31,75	Timken	Tapered Roller Bearings
  4T-430215	75	130	62	NTN	Tapered Roller Bearings
  51248M	240	340	78	SKF	Thrust Ball Bearings
  6217Z	85	150	28	KOYO	Deep Groove Ball Bearings
  63/32	32	75	20	CX	Deep Groove Ball Bearings
  7309-BECB-TVP	45	100	25	NKE	Angular Contact Ball Bearings
  GRAE35-NPPB	35	72	25,4	NKE	Deep Groove Ball Bearings
  HM914545/HM914510	69,85	146,05	36,512	Timken	Tapered Roller Bearings
  K 42x47x30 - ZW	42	47		NBS	Needle Roller Bearings
  LM50OP	50	80	100	CX	Linear Bearings
  NCF 2956 CV	380	280	60	SKF	Cylindrical Roller Bearings
  NK105/26	105	125	26	FBJ	Needle Roller Bearings
  RNA4914	80	100	30	CX	Needle Roller Bearings
  SNUP2855HL	28	55	20	KBC	Cylindrical Roller Bearings
  D-211-58	55	100	3.6250	Rollway	CYLINDRICAL ROLLER BEARINGS
  4AE	25	52	9	RIV	DEEP GROOVE BALL BEARINGS
  AH-3838x180	190	180		CONSOLIDATED	WITHDRAWAL SLEEVES