6203, 6203-2Z, 6203-2RS Ball Bearing, ISO 15

For a 17 mm shaft and a 40 mm housing bore, the 6203 ball bearing (ISO 15) is 12 mm wide. Modeled as simplified STEP files.

How these parts are made, and what the levels mean: read the method

• Also searched as: 6203 bearing, 6203-2Z bearing, 6203-2RS bearing
• Model id: iso15-6203
• Standard: ISO 15 · size 6203

Versions

Designation	What differs	Part key	Simplified
6203	open	iso15-6203	STEP
6203-2Z	2Z (shielded)	iso15-6203-2z	STEP
6203-2RS	2RS (sealed)	iso15-6203-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		17		17	nominal	L1
D	Outside diameter		40		40	nominal	L1
B	Width		12		12	nominal	L1
r	Chamfer dimension	0.6			0.6	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-ISO15-SZ-6203.pdf.

Load ratings and speeds

What NSK's web catalogue (nsk-dgbb) lists for its open bearing of this designation. Limiting speeds are for the open bearing; a shielded or sealed bearing has its own, lower ones.

• Basic Load Ratings, Cr: 10500 N
• Basic Load Ratings, C0r: 4800 N
• Limiting Speeds, Grease: 20000 min-1
• Limiting Speeds, Oil (Oil-bath): 24000 min-1

The 6203 ball bearing beside the 6003 and the 6303

The 6203 is number 46 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.

• Bore diameter (d): 17 mm on the 6203 ball bearing, the same on the 6003 and the 6303.
• Outside diameter (D): 40 mm on the 6203 ball bearing, against 35 mm on the 6003 and 47 mm on the 6303.
• Width (B): 12 mm on the 6203 ball bearing, against 10 mm on the 6003 and 14 mm on the 6303.
• Chamfer dimension (r): at least 0.6 mm on the 6203 ball bearing, against at least 0.3 mm on the 6003 and at least 1 mm on the 6303.

Other sizes

• One size smaller: 6003 Ball Bearing, ISO 15, 17 mm bore, 35 mm OD, 10 mm wide.
• One size larger: 6303 Ball Bearing, ISO 15, 17 mm bore, 47 mm OD, 14 mm wide.

Documents

• CC-ISO15-DS-6203.pdf: 6203 datasheet: values with levels, sources
• CC-ISO15-SZ-6203.pdf: 6203 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

nsk-dgbb, ntn-bearingfinder-dgbb, skf-17000-dgbb. Full citations: the method page and this size's datasheet.

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