32004X Tapered Roller Bearing (Taper Roller Bearing), ISO 355

The 32004X tapered roller bearing (ISO 355) has a 20 mm bore, a 42 mm outside diameter and a width of 15 mm. Get it as simplified STEP files.

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

• Also searched as: 32004X bearing
• Model id: iso355-32004x
• Standard: ISO 355 · size 32004X

Files

Part key	Simplified
iso355-32004x	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		20		20	nominal	L1
D	Outside diameter		42		42	nominal	L1
T	Total width		15		15	nominal	L1
B	Cone width		15		15	nominal	L1
C	Cup width		12		12	nominal	L1
r1	Cone back face chamfer dimension	0.6			0.6	single limit (min), modeled at the limit	L1
r3	Cup back face chamfer dimension	0.6			0.6	single limit (min), modeled at the limit	L1
d1	Cone back face rib diameter		32.1 ref		32.1	reference value	L0 (ref: one source)
Y	Axial load factor		1.6		1.6	nominal	L1
alpha	Cup half angle		14.04		14.04	nominal	L0 (nom: one source)

Drawing

As a PDF: CC-ISO355-SZ-32004X.pdf.

The 32004X tapered roller bearing beside the 30203 and the 30204

The 32004X is number 3 of the 16 ISO 355 tapered roller bearings published here, listed from 30202 to 30210.

• Bore diameter (d): 20 mm on the 32004X tapered roller bearing, against 17 mm on the 30203 and 20 mm on the 30204.
• Outside diameter (D): 42 mm on the 32004X tapered roller bearing, against 40 mm on the 30203 and 47 mm on the 30204.
• Total width (T): 15 mm on the 32004X tapered roller bearing, against 13.25 mm on the 30203 and 15.25 mm on the 30204.
• Cone width (B): 15 mm on the 32004X tapered roller bearing, against 12 mm on the 30203 and 14 mm on the 30204.
• Cup width (C): 12 mm on the 32004X tapered roller bearing, against 11 mm on the 30203 and 12 mm on the 30204.
• Cone back face chamfer dimension (r1): at least 0.6 mm on the 32004X tapered roller bearing, against at least 1 mm on the 30203 and at least 1 mm on the 30204.
• Cup back face chamfer dimension (r3): at least 0.6 mm on the 32004X tapered roller bearing, against at least 1 mm on the 30203 and at least 1 mm on the 30204.
• Cone back face rib diameter (d1): 32.1 mm (reference) on the 32004X tapered roller bearing, against 29 mm (reference) on the 30203 and 33.7 mm (reference) on the 30204.

Other sizes

• One size smaller: 30203 Tapered Roller Bearing (Taper Roller Bearing), ISO 355, 17 mm bore, 40 mm OD, 13.25 mm wide.
• One size larger: 30204 Tapered Roller Bearing (Taper Roller Bearing), ISO 355, 20 mm bore, 47 mm OD, 15.25 mm wide.

Documents

• CC-ISO355-DS-32004X.pdf: 32004X datasheet: values with levels, sources
• CC-ISO355-SZ-32004X.pdf: 32004X drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

nsk-tapered, ntn-bearingfinder-tapered, rule-iso355-cup-angle, skf-17000-tapered, timken-tapered. Full citations: the method page and this size's datasheet.

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