HK1812 Needle Bearing (Drawn Cup Needle Roller Bearing), ISO 3245

For an 18 mm shaft and a 24 mm housing bore, the HK1812 needle bearing (ISO 3245) is 12 mm wide. Modeled as simplified STEP files.

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

• Also searched as: HK1812 bearing
• Model id: iso3245-hk1812
• Standard: ISO 3245 · size HK1812

Files

Part key	Simplified
iso3245-hk1812	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
Fw	Bore diameter under the rollers		18		18	nominal	L1
D	Outside diameter		24		24	nominal	L1
C	Width		12		12	nominal	L1
r	Chamfer dimension	0.8			0.8	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-ISO3245-SZ-HK1812.pdf.

The HK1812 needle bearing beside the HK1712 and the HK1816

The HK1812 is number 24 of the 37 ISO 3245 needle bearings published here, listed from HK0306 to HK2526.

• Bore diameter under the rollers (Fw): 18 mm on the HK1812 needle bearing, against 17 mm on the HK1712 and 18 mm on the HK1816.
• Outside diameter (D): 24 mm on the HK1812 needle bearing, against 23 mm on the HK1712 and 24 mm on the HK1816.
• Width (C): 12 mm on the HK1812 needle bearing, against 12 mm on the HK1712 and 16 mm on the HK1816.
• Chamfer dimension (r): at least 0.8 mm on the HK1812 needle bearing, the same on the HK1712 and the HK1816.

Other sizes

• One size smaller: HK1712 Needle Bearing (Drawn Cup Needle Roller Bearing), ISO 3245, 17 mm bore, 23 mm OD, 12 mm wide.
• One size larger: HK1816 Needle Bearing (Drawn Cup Needle Roller Bearing), ISO 3245, 18 mm bore, 24 mm OD, 16 mm wide.

Documents

• CC-ISO3245-DS-HK1812.pdf: HK1812 datasheet: values with levels, sources
• CC-ISO3245-SZ-HK1812.pdf: HK1812 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

koyo-bs007-hk, ntn-bearingfinder-hk, schaeffler-hr1-hk, skf-17000-hk. Full citations: the method page and this size's datasheet.

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