51104 Thrust Bearing (Thrust Ball Bearing), ISO 104

The 51104 thrust bearing (ISO 104) has a 20 mm bore, a 35 mm outside diameter and a height of 10 mm. Get it as simplified STEP files.

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

• Also searched as: 51104 bearing
• Model id: iso104-51104
• Standard: ISO 104 · size 51104

Files

Part key	Simplified
iso104-51104	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Shaft washer bore diameter		20		20	nominal	L1
D	Housing washer outside diameter		35		35	nominal	L1
T	Height		10		10	nominal	L1
r	Chamfer dimension	0.3			0.3	single limit (min), modeled at the limit	L1
d1	Shaft washer outside diameter		35 ref		35	reference value	L1
D1	Housing washer bore diameter		21 ref		21	reference value	L1

Drawing

As a PDF: CC-ISO104-SZ-51104.pdf.

The 51104 thrust bearing beside the 51103 and the 51105

The 51104 is number 5 of the 9 ISO 104 thrust bearings published here, listed from 51100 to 51108.

• Shaft washer bore diameter (d): 20 mm on the 51104 thrust bearing, against 17 mm on the 51103 and 25 mm on the 51105.
• Housing washer outside diameter (D): 35 mm on the 51104 thrust bearing, against 30 mm on the 51103 and 42 mm on the 51105.
• Height (T): 10 mm on the 51104 thrust bearing, against 9 mm on the 51103 and 11 mm on the 51105.
• Chamfer dimension (r): at least 0.3 mm on the 51104 thrust bearing, against at least 0.3 mm on the 51103 and at least 0.6 mm on the 51105.
• Shaft washer outside diameter (d1): 35 mm (reference) on the 51104 thrust bearing, against 30 mm (reference) on the 51103 and 42 mm (reference) on the 51105.
• Housing washer bore diameter (D1): 21 mm (reference) on the 51104 thrust bearing, against 18 mm (reference) on the 51103 and 26 mm (reference) on the 51105.

Other sizes

• One size smaller: 51103 Thrust Bearing (Thrust Ball Bearing), ISO 104, 17 mm bore, 30 mm OD, 9 mm high.
• One size larger: 51105 Thrust Bearing (Thrust Ball Bearing), ISO 104, 25 mm bore, 42 mm OD, 11 mm high.

Documents

• CC-ISO104-DS-51104.pdf: 51104 datasheet: values with levels, sources
• CC-ISO104-SZ-51104.pdf: 51104 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

nsk-thrust, ntn-bearingfinder-thrust, skf-17000-thrust. Full citations: the method page and this size's datasheet.

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