693, 693-2Z, 693-2RS Ball Bearing, ISO 15

The 693 ball bearing (ISO 15) has a 3 mm bore, an 8 mm outside diameter and a width of 3 mm. Get it as simplified STEP files.

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

• Also searched as: 693 bearing, 693-2Z bearing, 693-2RS bearing
• Model id: iso15-693
• Standard: ISO 15 · size 693

Versions

Designation	What differs	Part key	Simplified
693	open	iso15-693	STEP
693-2Z	2Z (shielded)	iso15-693-2z	STEP
693-2RS	2RS (sealed)	iso15-693-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		3		3	nominal	L1
D	Outside diameter		8		8	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		4		4	nominal	L1

Drawing

As a PDF: CC-ISO15-SZ-693.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: 615 N
• Basic Load Ratings, C0r: 179 N
• Limiting Speeds, Grease: 60000 min-1
• Limiting Speeds, Oil (Oil-bath): 67000 min-1

The 693 ball bearing beside the 603

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

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

Other sizes

• One size larger: 603 Ball Bearing, ISO 15, 3 mm bore, 9 mm OD, 3 mm wide.

Documents

• CC-ISO15-DS-693.pdf: 693 datasheet: values with levels, sources
• CC-ISO15-SZ-693.pdf: 693 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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