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 - 0,072 Kg

Basic dynamic load rating (C) - 8 kN

Basic static load rating (C0) - 2,01 kN

(Grease) Lubrication Speed - 16 000 r/min

(Oil) Lubrication Speed - 20 000 r/min

Calculation factor (e) - 0,31

Calculation factor (Y0) - 2,1

Calculation factor (Y2) - 3,1

Calculation factor (Y3) - 2

• Model Number: 1203
• Inner Diameter：17mm Outer Diameter：40mm Width：12mm
• Type：Self-Aligning Ball Bearings
• Update date：2025-12-11
• Application:Rolling mill,Hydraulic Couplings,stirrer,Special Equipment,training beds etc,screen filter,DC generators,switch,shoe-making machinery,Water Monitoring,coal
• Similar models:NSK 1203 ZEN 1203-2RS KOYO 1203 NTN 1203S NACHI 1203 FBJ 1203 FAG 1203-TVH ISO 1203 ZEN S1203 CRAFT 1203
• BEARING POWER International Trading Co.,Ltd. specialize in 1203 products，there is large inventory of NSK 1203 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 1203 Which NSK 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
  22310CYKW33	50	110	40	AST	Spherical Roller Bearings
  161140/161200XP	140	200,025	80,15	Gamet	Tapered Roller Bearings
  47226	130	200	112	KOYO	Tapered Roller Bearings
  4T-685/672	98,425	168,275	41,275	NTN	Tapered Roller Bearings
  62211-2RS	55	100	25	SIGMA	Deep Groove Ball Bearings
  6806DD	30	42	7	NSK	Deep Groove Ball Bearings
  B-2414	38,1	47,625	22,22	NSK	Needle Roller Bearings
  AXW 12 + AXK 1226	29	12	2	SKF	Thrust Roller Bearings
  BK1614RS	16	22	14	SKF	Needle Roller Bearings
  FNTA-75100	75	100	4	NSK	Needle Roller Bearings
  MF-5020	50	58	20	NSK	Needle Roller Bearings
  NN3024MB	120	165	46	NSK	Cylindrical Roller Bearings
  PHU59000	29,5	126,7	78,5	PFI	Angular Contact Ball Bearings
  QJ222	110	200	38	FBJ	Angular Contact Ball Bearings
  RMS 24	177,8	76,2	39,688	SKF	Deep Groove Ball Bearings
  RNA499	12	20	11	CX	Needle Roller Bearings
  63207ZZ	35	72	1.0625	NTN	DEEP GROOVE BALL BEARINGS
  RM-12	1.5000	3.7500	.9375	SKF	SELF
  RLS-291/2	11.5000	18.0000	2.3750	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  NA-4906	30	47	17	CONSOLIDATED	NEEDLE BEARINGS