603, 603-2Z, 603-2RS Ball Bearing, ISO 15

For a 3 mm shaft and a 9 mm housing bore, the 603 ball bearing (ISO 15) is 3 mm wide. Modeled as simplified STEP files.

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

• Also searched as: 603 bearing, 603-2Z bearing, 603-2RS bearing
• Model id: iso15-603
• Standard: ISO 15 · size 603

Versions

Designation	What differs	Part key	Simplified
603	open	iso15-603	STEP
603-2Z	2Z (shielded)	iso15-603-2z	STEP
603-2RS	2RS (sealed)	iso15-603-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		3		3	nominal	L1
D	Outside diameter		9		9	nominal	L1
B	Width		3		3	nominal	L1
r	Chamfer dimension	0.15			0.15	single limit (min), modeled at the limit	L1
B1	Width, shielded or sealed		5		5	nominal	L1

Drawing

As a PDF: CC-ISO15-SZ-603.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: 630 N
• Basic Load Ratings, C0r: 187 N
• Limiting Speeds, Grease: 56000 min-1
• Limiting Speeds, Oil (Oil-bath): 67000 min-1

The 603 ball bearing beside the 693 and the 623

The 603 is number 2 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.

• Bore diameter (d): 3 mm on the 603 ball bearing, the same on the 693 and the 623.
• Outside diameter (D): 9 mm on the 603 ball bearing, against 8 mm on the 693 and 10 mm on the 623.
• Width (B): 3 mm on the 603 ball bearing, against 3 mm on the 693 and 4 mm on the 623.
• Chamfer dimension (r): at least 0.15 mm on the 603 ball bearing, the same on the 693 and the 623.
• Width, shielded or sealed (B1): 5 mm on the 603 ball bearing, against 4 mm on the 693.

Other sizes

• One size smaller: 693 Ball Bearing, ISO 15, 3 mm bore, 8 mm OD, 3 mm wide.
• One size larger: 623 Ball Bearing, ISO 15, 3 mm bore, 10 mm OD, 4 mm wide.

Documents

• CC-ISO15-DS-603.pdf: 603 datasheet: values with levels, sources
• CC-ISO15-SZ-603.pdf: 603 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

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

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