d - 17 mm

D - 40 mm

T - 13,25 mm

B - 12 mm

C - 11 mm

ra1 max. - 1 mm

a - 9,5 mm

r min. - 1 mm

r1 min. - 1 mm

da min. - 22,5 mm

Da min - 33 mm

Da max. - 34,5 mm

db max. - 23 mm

Db min. - 37 mm

ra max. - 1 mm

Sa - 2 mm

Sb - 2 mm

Weight - 0,08 Kg

Basic dynamic load rating (C) - 20,5 kN

Basic static load rating (C0) - 20,3 kN

(Grease) Lubrication Speed - 9 900 r/min

(Oil) Lubrication Speed - 13 000 r/min

Calculation factor (e) - 0,35

Calculation factor (Y0) - 0,96

Calculation factor (Y2) - 1,74

• Model Number: 4T-30203
• Inner Diameter：17mm Outer Diameter：40mm Width：13,25mm
• Type：Tapered Roller Bearings
• Update date：2025-12-15
• Application:pump industry,Pump,Spectrum Products,food testing,X-ray Equipment,Display Devices,instrument,Pneumatic Control Elements,pump accessories,switch,medical equipment
• Similar models:NKE 30203 FBJ 30203 PFI 30203 CX 30203A FAG 30203-XL NACHI E30203J KOYO HC30203JRZRS1 NSK HR30203J Timken 30203 Fersa 30203F
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-30203 products，there is large inventory of NTN 4T-30203 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-30203 Which NTN 4T-30203 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
  32011X/Q	55	90	23	SKF	Tapered Roller Bearings
  AX 12 180 225	180	225	12	KOYO	Needle Roller Bearings
  52211	45	90	45	ISB	Thrust Ball Bearings
  7224C	120	215	40	CYSD	Angular Contact Ball Bearings
  7938DT	190	260	33	NTN	Angular Contact Ball Bearings
  838/832	80,962	168,275	53,975	Timken	Tapered Roller Bearings
  EE724121D/724195/724196D	304,8	495,3	342,9	NTN	Tapered Roller Bearings
  GX60S	60	150	45	FBJ	Plain Bearings
  K18X22X13	18,000	22,000		NTN	Needle Roller Bearings
  RNAO25x37x16	25	37	16	ISO	Cylindrical Roller Bearings
  SAPFL201	12		28,5	KOYO	Bearing Units
  SY 2. TF/AH	50,8			SKF	Bearing Units
  UCT215	75			CX	Bearing Units
  UKPX18+H2318	80		101,6	NACHI	Bearing Units
  293/750E.MB	750	1120		FAG	SPHERICAL ROLLERTHRUST BEARINGS
  NUTD17	17	40	21	FAG (Old No.)	NEEDLE BEARINGS
  C2219	95	170	43	SKF	TOROIDAL ROLLER BEARINGS
  7211BEAG(Y/P)	55	100	21	STEYR	ANGULAR CONTACT BALL BEARINGS
  NUKR-72	24	72	29	CONSOLIDATED	NEEDLE BEARINGS
  RNA-2203-2RSX	40		15.8	CONSOLIDATED	NEEDLE BEARINGS