NSK35TAC72ADBC10PN7BAngular Contact Thrust Ball Bearing for Ball Screw Support – 35 mm ID, 72 mm OD, 15 mm Width, Straight Bore, Open, Back-to-Back Matched Pair.

Product Description

What this part is

NSK 35TAC72ADBC10PN7B, an angular contact thrust ball bearing for ball screw support. Bore Diameter: 35 mm (1.3780 in). Outside Diameter: 72 mm (2.8346 in). Overall Width: 15 mm (0.5906 in). Rolling Elements: Ball. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Bearing Material: Bearing steel. Series: TAC.

Decoding the designation

35TAC72 — NSK’s ball screw support angular contact thrust series. The leading number is the bore in millimetres and the number following TAC is the outside diameter in millimetres, so 35TAC72 is a 35 mm bore in a 72 mm outside diameter.

A — the first design generation within the TAC family.

DB — back-to-back pair. Two single-row bearings supplied as a matched set and mounted with their outer ring backs together.

What these specs mean in practice

Ball screw support bearings carry thrust along the screw axis and hold the screw in axial position under reversing load. The 35 mm bore seats on the screw journal and the 72 mm outside diameter locates in the support housing bore. Overall Width: 15 mm per bearing. A back-to-back pair sets the load lines diverging outward, which widens the effective bearing span and raises resistance to tilting moments on the screw end.

Quantity and configuration

Unit Quantity: 2 Pcs. Mounting Arrangement: Back-to-back (DB) matched pair.