6804, 6804-2Z, 6804-2RS Ball Bearing, ISO 15

For a 20 mm shaft and a 32 mm housing bore, the 6804 ball bearing (ISO 15) is 7 mm wide. Modeled as simplified STEP files.

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

• Also searched as: 6804 bearing, 6804-2Z bearing, 6804-2RS bearing
• Model id: iso15-6804
• Standard: ISO 15 · size 6804

Versions

Designation	What differs	Part key	Simplified
6804	open	iso15-6804	STEP
6804-2Z	2Z (shielded)	iso15-6804-2z	STEP
6804-2RS	2RS (sealed)	iso15-6804-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		20		20	nominal	L1
D	Outside diameter		32		32	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-6804.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: 4400 N
• Basic Load Ratings, C0r: 2470 N
• Limiting Speeds, Grease: 22000 min-1
• Limiting Speeds, Oil (Oil-bath): 26000 min-1

The 6804 ball bearing beside the 6303 and the 6904

The 6804 is number 48 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.

• Bore diameter (d): 20 mm on the 6804 ball bearing, against 17 mm on the 6303 and 20 mm on the 6904.
• Outside diameter (D): 32 mm on the 6804 ball bearing, against 47 mm on the 6303 and 37 mm on the 6904.
• Width (B): 7 mm on the 6804 ball bearing, against 14 mm on the 6303 and 9 mm on the 6904.
• Chamfer dimension (r): at least 0.3 mm on the 6804 ball bearing, against at least 1 mm on the 6303 and at least 0.3 mm on the 6904.

Other sizes

• One size smaller: 6303 Ball Bearing, ISO 15, 17 mm bore, 47 mm OD, 14 mm wide.
• One size larger: 6904 Ball Bearing, ISO 15, 20 mm bore, 37 mm OD, 9 mm wide.

Documents

• CC-ISO15-DS-6804.pdf: 6804 datasheet: values with levels, sources
• CC-ISO15-SZ-6804.pdf: 6804 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. Full citations: the method page and this size's datasheet.

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