d - 17 mm

D - 40 mm

B - 12 mm

C - 12 mm

r min. - 0.6 mm

da min. - 21 mm

Da max. - 36 mm

ra max. - 0.6 mm

Weight - 0.073 Kg

Basic dynamic load rating (C) - 7.90 kN

Basic static load rating (C0) - 2.00 kN

(Grease) Lubrication Speed - 16000 r/min

(Oil) Lubrication Speed - 20000 r/min

Calculation factor (e) - 0.31

Calculation factor (Y0) - 2.12

Calculation factor (Y1) - 2.03

Calculation factor (Y2) - 3.14

• Model Number: 1203
• Inner Diameter：17mm Outer Diameter：40mm Width：12mm
• Type：Self-Aligning Ball Bearings
• Update date：2025-12-15
• Application:other processing,X-ray Equipment,Machine tools,Tool,Vertical machining,Storage Tool,organic raw materials,embroidery cloth,molding machine,water protection,product accessories
• Similar models:KOYO 1203 CRAFT 1203 ISB 1203TN9 CX 1203 NACHI 1203 ISO 1203 AST 1203 ZEN S1203 ZEN 1203 FAG 1203-TVH
• BEARING POWER International Trading Co.,Ltd. specialize in 1203 products，there is large inventory of KOYO 1203 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 1203 Which KOYO 1203 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
  22315MB	75	160	55	AST	Spherical Roller Bearings
  53328+U328	140	240	84,9	NKE	Thrust Ball Bearings
  5310WD	50	110	47,62	Timken	Angular Contact Ball Bearings
  65235/65500	59,88	127	44,45	Timken	Tapered Roller Bearings
  6310NSE	50	110	27	NACHI	Deep Groove Ball Bearings
  EGF15120-E40	15	17	12	INA	Plain Bearings
  F695H	5	13	4	AST	Deep Groove Ball Bearings
  FR8ZZ	12,7	28,575	7,938	ISB	Deep Groove Ball Bearings
  GE560-DW	560	750	258	INA	Plain Bearings
  VE303922AB1-1	30	39	21,8	KOYO	Needle Roller Bearings
  22310EAS.MA.C4.T41A	50	110	40	FAG	SPHERICAL ROLLER BEARINGS
  RSL185010	50	2.8480	40	INA	CYLINDRICAL ROLLER BEARING
  XLS-17/8	1.8750	3.1875	.6250	FED	DEEP GROOVE BALL BEARINGS
  TAF475730	57		30	IKO	NEEDLE BEARINGS
  HK1010	14		10	INA	NEEDLE BEARINGS
  47614	70	150	35	New Departure	DEEP GROOVE BALL BEARINGS
  ND17F	17	44	10	New Departure	MAGNETO BEARINGS
  52309				STEYR	THRUST BALL BEARINGS
  310RDU#7BKE	50	110	27	MRC	ANGULAR CONTACT BALL BEARINGS
  16x24x7mm	16	24	7	CONSOLIDATED	OIL SEALS