32009X Tapered Roller Bearing (Taper Roller Bearing), ISO 355

The 32009X tapered roller bearing (ISO 355) has a 45 mm bore, a 75 mm outside diameter and a width of 20 mm. Get it as simplified STEP files.

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

• Also searched as: 32009X bearing
• Model id: iso355-32009x
• Standard: ISO 355 · size 32009X

Files

Part key	Simplified
iso355-32009x	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
d	Bore diameter		45		45	nominal	L1
D	Outside diameter		75		75	nominal	L1
T	Total width		20		20	nominal	L1
B	Cone width		20		20	nominal	L1
C	Cup width		15.5		15.5	nominal	L1
r1	Cone back face chamfer dimension	1			1	single limit (min), modeled at the limit	L1
r3	Cup back face chamfer dimension	1			1	single limit (min), modeled at the limit	L1
d1	Cone back face rib diameter		60.7 ref		60.7	reference value	L0 (ref: one source)
Y	Axial load factor		1.53		1.53	nominal	L1
alpha	Cup half angle		14.65		14.65	nominal	L0 (nom: one source)

Drawing

As a PDF: CC-ISO355-SZ-32009X.pdf.

The 32009X tapered roller bearing beside the 30208 and the 30209

The 32009X is number 13 of the 16 ISO 355 tapered roller bearings published here, listed from 30202 to 30210.

• Bore diameter (d): 45 mm on the 32009X tapered roller bearing, against 40 mm on the 30208 and 45 mm on the 30209.
• Outside diameter (D): 75 mm on the 32009X tapered roller bearing, against 80 mm on the 30208 and 85 mm on the 30209.
• Total width (T): 20 mm on the 32009X tapered roller bearing, against 19.75 mm on the 30208 and 20.75 mm on the 30209.
• Cone width (B): 20 mm on the 32009X tapered roller bearing, against 18 mm on the 30208 and 19 mm on the 30209.
• Cup width (C): 15.5 mm on the 32009X tapered roller bearing, against 16 mm on the 30208 and 16 mm on the 30209.
• Cone back face chamfer dimension (r1): at least 1 mm on the 32009X tapered roller bearing, against at least 1.5 mm on the 30208 and at least 1.5 mm on the 30209.
• Cup back face chamfer dimension (r3): at least 1 mm on the 32009X tapered roller bearing, against at least 1.5 mm on the 30208 and at least 1.5 mm on the 30209.
• Cone back face rib diameter (d1): 60.7 mm (reference) on the 32009X tapered roller bearing, against 57.5 mm (reference) on the 30208 and 63.1 mm (reference) on the 30209.

Other sizes

• One size smaller: 30208 Tapered Roller Bearing (Taper Roller Bearing), ISO 355, 40 mm bore, 80 mm OD, 19.75 mm wide.
• One size larger: 30209 Tapered Roller Bearing (Taper Roller Bearing), ISO 355, 45 mm bore, 85 mm OD, 20.75 mm wide.

Documents

• CC-ISO355-DS-32009X.pdf: 32009X datasheet: values with levels, sources
• CC-ISO355-SZ-32009X.pdf: 32009X 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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