Ball bearing bearing unit ST

stainless steelcorrosion-resistantfor the food industry

Overview

The stainless steel Take-up bearing unit type ST is designed for conveyor and material handling shafts where hygiene, corrosion resistance and easy cleaning are required. The unit provides adjustable pre-lubricated bearings in a stainless steel housing for demanding environments and washdown conditions.

Advantages

• Adjustable, pre-lubricated AISI 440C stainless steel ball bearing.
• Re-lubrication via AISI 304 stainless steel grease nipple (M6x1) or quick coupler.
• Optional safety cover in polypropylene or AISI 304 stainless steel.
• Optional rotary shaft seal ring (TC) with extra dust-protection lip in NBR and stainless steel spring.

Features

• Housing: Stainless steel AISI 304 (option AISI 316)
• Bearing material: AISI 440C stainless steel
• Grease nipple: AISI 304, M6x1 mm
• No surface coating required
• Operating temperature: -30°C to +120°C
• Cover: Polypropylene or AISI 304 stainless steel
• Oil seal: NBR rubber with stainless steel spring

Sizes available

Ø20 mm | ST 204
Ø25 mm | ST 205
Ø30 mm | ST 206
Ø35 mm | ST 207
Ø40 mm | ST 208
Ø45 mm | ST 209
Ø50 mm | ST 210
Ø55 mm | ST 211
Ø60 mm | ST 212

Usage

The Mounted Take-up Bearing Unit ST is used in conveyor and material handling systems to provide automatic tension adjustment and alignment correction for shafts and belts. Its adjustable positioning allows even load distribution, reducing wear and extending conveyor service life. The stainless steel construction ensures corrosion resistance and reliable operation in hygienic and harsh environments.

Industries

• Food processing – conveyors, sorting lines and packaging systems requiring hygiene and washdown resistance
• Pharmaceutical – contamination-free material handling meeting hygienic standards
• Beverage – bottling, filling and brewing equipment exposed to high moisture
• Chemical – applications requiring durability in corrosive environments

Material and Construction

Manufactured in AISI 304 (option AISI 316) stainless steel with smooth, polished surfaces compliant with hygienic standards. Food-grade seals and high-quality stainless steel bearings are specified for performance under high-pressure washdown and corrosive conditions.

Technical specifications

• Model: ST series
• Housing material: AISI 304 (option AISI 316)
• Bearing: AISI 440C stainless steel, pre-lubricated, adjustable
• Grease nipple: AISI 304, M6x1 mm (or quick coupler)
• Cover options: Polypropylene or AISI 304 stainless steel
• Oil seal: NBR rubber with stainless spring (TC shaft seal option)
• Operating temperature range: -30°C to +120°C
• Standards: Designed for hygienic environments (EHEDG / 3A compatible surface finish)
• Available shaft diameters / catalog numbers: Ø20 mm (ST 204), Ø25 mm (ST 205), Ø30 mm (ST 206), Ø35 mm (ST 207), Ø40 mm (ST 208), Ø45 mm (ST 209), Ø50 mm (ST 210), Ø55 mm (ST 211), Ø60 mm (ST 212)