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. - 20.5 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 - 24000 r/min

Calculation factor - k_r - 0.025

Calculation factor - f₀ - 14.8

Mass bearing - 0.017 kg

• Model Number:W 61903-2Z
• Inner Diameter：30mm Outer Diameter：17mm Width：7mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-12
• Application:suction nozzle,wheel lathe,municipal machinery,Industrial equipment,Pneumatic Actuator,Hydraulic Couplings,oral medical device,engineering machinery,security equipment,Spectrum Products,air conditioning tools
• Similar models:ISO 61903 ISB SS61903-ZZ SKF W61903-2Z ISB 61903 NKE 61903-2Z NKE 61903-2RSR ZEN 61903-Z.T9H.C3 SKF W61903 SKF W61903-2RS1 SKF W61903R
• BEARING POWER International Trading Co.,Ltd. specialize in W61903-2Z products，there is large inventory of SKF W 61903-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 61903-2Z Which SKF W61903-2Z 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
  16017	130	85	14	SKF	Deep Groove Ball Bearings
  2208S	40	80	23	NTN	Self-Aligning Ball Bearings
  22214EAW33	70,000	125,000	31,000	SNR	Thrust Roller Bearings
  23160-E1A-K-MB1 + AH3160G	280	500	160	FAG	Spherical Roller Bearings
  32356	280	580	187	NTN	Tapered Roller Bearings
  6013-2RS	65	100	18	CX	Deep Groove Ball Bearings
  7017UCDB/GNP5	85	130	44	NTN	Angular Contact Ball Bearings
  D16	36,513	65,888	15,875	INA	Thrust Ball Bearings
  E2.6000-2Z	10	26	8	SKF	Deep Groove Ball Bearings
  F-59	5	9	9	NSK	Needle Roller Bearings
  FY 15 TF	15			SKF	Bearing Units
  LUCR 80		80		SKF	Linear Bearings
  NJ 18/800 ECMA	980	800	82	SKF	Thrust Ball Bearings
  NU2215-E-M6	75	130	31	NKE	Cylindrical Roller Bearings
  NU3252	260	480	174	ISO	Cylindrical Roller Bearings
  236HCUL	180	320	52	Barden	ANGULAR CONTACT BALL BEARINGS
  080412	.5000	1.0000	.7500	BAL	JOURNAL ROLLER ASSEMBLIES
  1960HCDUL	300	420	56	Barden	ANGULAR CONTACT BALL BEARINGS
  TWD1220	.7500	1.2500		INA	THRUST NEEDLE BEARINGS
  SN-605..1305-K,	20		52	CONSOLIDATED	PILLOW BLOCKS