6303, 6303-2Z, 6303-2RS Ball Bearing, ISO 15

The 6303 ball bearing (ISO 15) has a 17 mm bore, a 47 mm outside diameter and a width of 14 mm. Get it as simplified STEP files.

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

• Also searched as: 6303 bearing, 6303-2Z bearing, 6303-2RS bearing
• Model id: iso15-6303
• Standard: ISO 15 · size 6303

Versions

Designation	What differs	Part key	Simplified
6303	open	iso15-6303	STEP
6303-2Z	2Z (shielded)	iso15-6303-2z	STEP
6303-2RS	2RS (sealed)	iso15-6303-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		17		17	nominal	L1
D	Outside diameter		47		47	nominal	L1
B	Width		14		14	nominal	L1
r	Chamfer dimension	1			1	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-ISO15-SZ-6303.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: 15000 N
• Basic Load Ratings, C0r: 6650 N
• Limiting Speeds, Grease: 17000 min-1
• Limiting Speeds, Oil (Oil-bath): 20000 min-1

The 6303 ball bearing beside the 6203 and the 6804

The 6303 is number 47 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.

• Bore diameter (d): 17 mm on the 6303 ball bearing, against 17 mm on the 6203 and 20 mm on the 6804.
• Outside diameter (D): 47 mm on the 6303 ball bearing, against 40 mm on the 6203 and 32 mm on the 6804.
• Width (B): 14 mm on the 6303 ball bearing, against 12 mm on the 6203 and 7 mm on the 6804.
• Chamfer dimension (r): at least 1 mm on the 6303 ball bearing, against at least 0.6 mm on the 6203 and at least 0.3 mm on the 6804.

Other sizes

• One size smaller: 6203 Ball Bearing, ISO 15, 17 mm bore, 40 mm OD, 12 mm wide.
• One size larger: 6804 Ball Bearing, ISO 15, 20 mm bore, 32 mm OD, 7 mm wide.

Documents

• CC-ISO15-DS-6303.pdf: 6303 datasheet: values with levels, sources
• CC-ISO15-SZ-6303.pdf: 6303 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.

Found an error? Use the feedback section on this page.