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NSK40TAC72BSUC10PN7BBall Screw Support Bearing – 40 mm ID, 72 mm OD, 15 mm Width, Single Row, Straight Bore, Open.

Condition: New

Availability:

3 in stock

NSK 40TAC72BSUC10PN7B ball screw support bearing, 40 mm bore, 72 mm OD, 15 mm width. Single row, straight bore, open, thick-section TAC series.

List Price

$123.25

3 in stock

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Specifications

Key Specifications

MFR / BrandNSK
MPN40TAC72BSUC10PN7B
Model40TAC72B
Bearing TypeAngular Contact Ball Bearing
ID40 mm
OD72 mm
Width15 mm

Technical Specifications

SeriesTAC
Base Number40TAC72B
Industry Termsball screw support bearing; ball screw bearing; screw support bearing; thrust angular contact ball bearing; BSB bearing
Common Misspellings40TAC72BSUCI0PN7B; 40TAC72BSU10PN7B; 40TAK72BSUC10PN7B; 40TAC72BSUC1OPN7B
Application TypesCNC machine tool ball screw ends; linear actuator screw supports; press and injection machine screw drives; precision positioning stages
Overall Width15 mm
Mpn Variants40TAC72BSUC10PN7B; 40TAC72B SUC10PN7B; 40TAC72-B-SUC-10-PN-7B; 40-TAC-72-B-SUC-10-PN-7B; 40TAC72BSUC10; 40TAC72B; 40TAC72
Additional AttributesThick-section rings for axial stiffness at a ball screw end support
Rolling ElementsBall
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50
Bearing MaterialBearing steel
Seller Part Number: B-AC3B1#W76SRP

Product Description

What this part is

A single-row ball screw support bearing from NSK’s TAC series. Bore Diameter: 40 mm. Outside Diameter: 72 mm. Overall Width: 15 mm. Rolling Elements: Ball. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Bearing Material: Bearing steel.

Decoding the designation

TAC — NSK’s ball screw support bearing series. These are angular contact ball bearings built with a high contact angle and thick rings, so the assembly is stiff in the axial direction and holds a ball screw’s axial position under thrust.

40 — Bore Diameter: 40 mm.

72 — Outside Diameter: 72 mm.

What these specs mean in practice

A 15 mm width on a 40 mm bore and a 72 mm outside diameter gives a thick radial section for the width. The extra ring material is what makes the bearing axially stiff, which is the property a ball screw end support is selected for.

Axial stiffness at the screw end determines how closely a machine can hold position under cutting load, so ball screw support bearings are rated on stiffness and running accuracy rather than on radial capacity.

Mounting data

Bore Diameter: 1.5748 in. Outside Diameter: 2.8346 in. Overall Width: 0.5906 in. Bore Type: Straight, so the inner ring mounts directly on the screw journal and is clamped by a locknut against a shoulder.

Quantity and configuration

Unit Quantity: 1 Pc.

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