635, 635-2Z, 635-2RS Ball Bearing, ISO 15

The 635 ball bearing (ISO 15) has a 5 mm bore, a 19 mm outside diameter and a width of 6 mm. Get it as simplified STEP files.

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

• Also searched as: 635 bearing, 635-2Z bearing, 635-2RS bearing
• Model id: iso15-635
• Standard: ISO 15 · size 635

Versions

Designation	What differs	Part key	Simplified
635	open	iso15-635	STEP
635-2Z	2Z (shielded)	iso15-635-2z	STEP
635-2RS	2RS (sealed)	iso15-635-2rs	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		5		5	nominal	L1
D	Outside diameter		19		19	nominal	L1
B	Width		6		6	nominal	L1
r	Chamfer dimension	0.3			0.3	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-ISO15-SZ-635.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: 2570 N
• Basic Load Ratings, C0r: 885 N
• Limiting Speeds, Grease: 32000 min-1
• Limiting Speeds, Oil (Oil-bath): 40000 min-1

The 635 ball bearing beside the 625 and the 696

The 635 is number 11 of the 71 ISO 15 ball bearings published here, listed from 693 to 6306.

• Bore diameter (d): 5 mm on the 635 ball bearing, against 5 mm on the 625 and 6 mm on the 696.
• Outside diameter (D): 19 mm on the 635 ball bearing, against 16 mm on the 625 and 15 mm on the 696.
• Width (B): 6 mm on the 635 ball bearing, against 5 mm on the 625 and 5 mm on the 696.
• Chamfer dimension (r): at least 0.3 mm on the 635 ball bearing, against at least 0.3 mm on the 625 and at least 0.2 mm on the 696.

Other sizes

• One size smaller: 625 Ball Bearing, ISO 15, 5 mm bore, 16 mm OD, 5 mm wide.
• One size larger: 696 Ball Bearing, ISO 15, 6 mm bore, 15 mm OD, 5 mm wide.

Documents

• CC-ISO15-DS-635.pdf: 635 datasheet: values with levels, sources
• CC-ISO15-SZ-635.pdf: 635 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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