608, 608-2Z, 608-2RS Ball Bearing, ISO 15

The 608 ball bearing (ISO 15) has an 8 mm bore, a 22 mm outside diameter and a width of 7 mm. Get it as simplified STEP files.

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

• Also searched as: 608 bearing, 608-2Z bearing, 608-2RS bearing
• Model id: iso15-608
• Standard: ISO 15 · size 608

Versions

Designation	What differs	Part key	Simplified
608	open	iso15-608	STEP
608-2Z	2Z (shielded)	iso15-608-2z	STEP
608-2RS	2RS (sealed)	iso15-608-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		8		8	nominal	L1
D	Outside diameter		22		22	nominal	L1
B	Width		7		7	nominal	L1
r	Chamfer dimension	0.3			0.3	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-ISO15-SZ-608.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: 3650 N
• Basic Load Ratings, C0r: 1370 N
• Limiting Speeds, Grease: 34000 min-1
• Limiting Speeds, Oil (Oil-bath): 40000 min-1

The 608 ball bearing beside the 698 and the 628

The 608 is number 19 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.

• Bore diameter (d): 8 mm on the 608 ball bearing, the same on the 698 and the 628.
• Outside diameter (D): 22 mm on the 608 ball bearing, against 19 mm on the 698 and 24 mm on the 628.
• Width (B): 7 mm on the 608 ball bearing, against 6 mm on the 698 and 8 mm on the 628.
• Chamfer dimension (r): at least 0.3 mm on the 608 ball bearing, the same on the 698 and the 628.

Other sizes

• One size smaller: 698 Ball Bearing, ISO 15, 8 mm bore, 19 mm OD, 6 mm wide.
• One size larger: 628 Ball Bearing, ISO 15, 8 mm bore, 24 mm OD, 8 mm wide.

Documents

• CC-ISO15-DS-608.pdf: 608 datasheet: values with levels, sources
• CC-ISO15-SZ-608.pdf: 608 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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