INA HK2538-ZW drawn cup needle roller bearing

INA HK2538-ZW belongs to drawn cup needle roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for HK2538-ZW and any equivalents.

The INA HK-ZW needle roller bushing is a thin-walled radial bearing that runs directly on a shaft, without an inner ring. It suits tight radial spaces where mounting height is limited and is common in transmissions, machine tools, and packaging equipment.

The code breaks down simply: HK means a thin-walled needle roller bushing, then two numbers give bore and width in millimeters, and the ZW suffix signals two needle retaining washers, one per side. So HK1522-ZW is a 15 mm shaft, 22 mm width; HK3038-ZW is a 30 mm shaft, 38 mm width. That lets you identify the size without measuring.

Typical uses include gearboxes, pumps, compressors, packaging and textile machinery, chain drives, power tools, and automation mechanisms that need accurate radial motion under moderate loads. Because the profile is low, these bushings fit where a ball bearing would not.

When selecting, confirm shaft diameter and available width. Without an inner ring, the shaft itself is the raceway, so it must be ground to the right hardness and roughness. Install by press fit or a slight fit, keep shaft and housing aligned to avoid side loads, and choose grease or oil based on operating conditions. Add sealing if dust or moisture is present.

INA bushings interchange with other brands that follow the same dimensional designation, such as SKF, FAG, or NSK, provided diameter, width, and suffix match. In practice, interchange depends on the dimensional standard and design, not the commercial code. Before replacing, compare dimensions and needle retainer type.

For an INA HK-ZW series bushing, send the code or size via WhatsApp or email. MR Industrial Accessories helps you pick the right option and replies promptly.