+43 664 88299952 info@alphabearing.net
Vierpunktlager--four-point-contact-ball-bearings-ALPHA-Bearings-Waelzlager-GmbH-Cuscinetti-a-quattro-punti-di-contatto-QJ-rodamientos Vierpunktlager--four-point-contact-ball-bearings-ALPHA-Bearings-Waelzlager-GmbH-Cuscinetti-a-quattro-punti-di-contatto-QJ-rodamientos

Four-point Contact Ball Bearings

Four Point Contact Ball Bearings are a special type of single row angular contact ball bearings. They are capable of absorbing radial forces and axial forces on both sides due to a separated inner or outer ring which produces two contact angles and the eponymous four point contact. Four point bearings are often used as axial bearings and combined with a radial bearing. They can be disassembled but are non-latching and not suitable for compensation of angular misalignments.

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Design with separated inner or outer ring

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Absorption of axial forces from both sides

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Absorption of low radial loads possible

Dimensions and Tolerances

The boundary dimensions of the bearings are standardised in ISO 15, DIN 616, and DIN 628-4. ALPHA Wälzlager GmbH supplies four-point contact ball bearings with normal tolerance (PN) in accordance to DIN 620-2 and ISO 492. Please contact our technical department to check the availability of bearings with improved accuracy class or special tolerances.

Axial Clearance

ALPHA four-point contact ball bearings are supplied in normal clearance (CN) in accordance with ISO 5753-1 (Axial internal clearance for four-point-contact ball bearings), but they are also available in all clearance classes with restricted clearance or increased clearance.

ALPHA WÄLZLAGER Gmbh

Nikolaigasse 39 – 9500 Villach (Austria)
+43 664 88299952
info@alphabearing.net
UID-Nr / VAT: ATU68405219