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NTN BST45X75-1BP4 Angular Contact Thrust Bearing for Ball Screws - Angular Contact Thrust Bearings for Ball Screws
NTNAngular Contact Thrust Bearings for Ball Screws

NTN BST45X75-1BP4 Angular Contact Thrust Bearing for Ball Screws

The NTN Ball Screw Support Bearing: 45X75 is a single, metric angular contact thrust bearing for ball screws, featuring a 45 mm bore and a 60° contact angle. This open bearing is ABEC 7 precision-rated with a…

SKU 3G-OTH-97335

Also listed as: BST45X751BP4 · BST45X75 1BP4

Brand
NTN
Item
BST45X75-1BP4 Angular Contact Thrust Bearing for Ball Screws
Part Number
BST45X75-1BP4
Category
Angular Contact Thrust Bearings for Ball Screws
Available to Order
Also known as:BST45X75-1BP4NTN
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

NTN
Manufacturer Part Number
BST45X75-1BP4
Type
60°, Open, ABEC 7, Thermoplastic Cage
Bore
45 mm
Row
1
Bearing Type
Single Bearing
Contact Bearing Type
Angular Contact
Matched Bearing Type
Not Matched/Single Bearing
System of Measurement
Metric
Bearing Industry Number
45X75

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NTN Ball Screw Support Bearing: 45X75 is a single, metric angular contact thrust bearing for ball screws, featuring a 45 mm bore and a 60° contact angle. This open bearing is ABEC 7 precision-rated with a thermoplastic cage, and is supplied as a single bearing (not matched). The bearing industry number is 45X75, with manufacturer part number BST45X75-1BP4.

Frequently Asked Questions

What is the NTN Ball Screw Support Bearing 45X75 used for?

This NTN angular contact thrust bearing supports ball screws in precision positioning systems. It handles axial loads in CNC machines, robotics, and linear motion assemblies. The 60° contact angle and ABEC 7 precision suit high-speed, high-accuracy applications.

What are the specifications of the NTN BST45X75-1BP4 bearing?

The NTN BST45X75-1BP4 is a single, metric angular contact thrust bearing with a 45 mm bore, 75 mm outer diameter, 60° contact angle, open design, ABEC 7 precision, and a thermoplastic cage. It is not matched and has bearing industry number 45X75.

Where to buy NTN ball screw support bearings worldwide?

3G Electric supplies NTN ball screw support bearings like the BST45X75-1BP4 worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. As a global distributor, we source and deliver this NTN bearing to any country.

How to select the correct NTN ball screw support bearing?

Select based on bore size, contact angle, precision class, and cage material. For the BST45X75-1BP4, confirm a 45 mm shaft, 60° contact angle for axial loads, ABEC 7 for high precision, and thermoplastic cage for reduced noise. Ensure single bearing (not matched) suits your preload setup.

Used in

Common applications for NTN
Material handling conveyors — NTN UCPL-1.3/16M pillow block ball bearings with cast iron housing and set screw locking for shaft support.
Automotive wheel hubs — NTN tapered roller bearing assemblies like LM814849/LM814810 for combined radial and axial load handling.
Industrial gearboxes — NTN tapered roller bearing cones such as 4T-05062 with chrome steel cage for moderate-speed applications.
Agricultural machinery — NTN inch-system tapered roller bearing assemblies like LM29748/LM29710 for reliable operation in dusty environments.
Pumps and compressors — NTN metric tapered roller bearing assemblies such as 33213 with carbon steel rings for high radial and axial loads.
Power transmission equipment — NTN pillow block ball bearings with 1 3/16 in bore for supporting rotating shafts in belt drives.
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NTN Products

3G Electric supplies NTN angular contact thrust bearings for ball screws. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Single-row angular contact thrust bearing for ball screw support. Features a 40 mm bore, 60° contact angle, open design, ABEC 7 precision, and thermoplastic cage. Suitable for precision linear motion systems requiring axial load handling and high rigidity
NTN
Single-row angular contact thrust bearing for ball screw support. Features a 40 mm bore, 60° contact angle, open design, ABEC 7 precision, and thermoplastic cage. Suitable for precision linear motion systems requiring axial load handling and high rigidity

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