Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
NTN Ball Screw Support Bearing: 45X75, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage - Angular Contact Thrust Bearings for Ball Screws
NTNAngular Contact Thrust Bearings for Ball Screws

NTN Ball Screw Support Bearing: 45X75, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage

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

Brand
NTN
Item
Ball Screw Support Bearing: 45X75, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage
Category
Angular Contact Thrust Bearings for Ball Screws
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

NTN Products
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
Automotive driveline — NTN tapered roller bearing assemblies (e.g., 4T-30303) for differential and wheel hub applications
Conveyor systems — NTN 4-bolt flange bearings (e.g., UCF211-200D1) for idler rollers and take-up units
Machine tool spindles — NTN duplex angular contact bearings (e.g., ML7006CVDUJ74S) for high-speed precision rotation
Industrial fans — NTN high-temperature radial ball bearings (e.g., 6004FT150) for oven and dryer exhaust systems
Pump drives — NTN radial ball bearings (e.g., 6008LLBC3/L627) for electric motor and pump shaft support
Agricultural equipment — NTN tapered roller bearing cones (e.g., LM29748L) for gearbox and PTO shaft assemblies

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
NTN Angular Contact Ball Bearing: 7413, 1 Row, 40°, Open, ABEC 1, Brass Cage, 65 mm Bore (MPN 7413BG). Key specifications — Bearing Industry Number: 7413; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Angular Contact Ball Bearing: 7413, 1 Row, 40°, Open, ABEC 1, Brass Cage, 65 mm Bore (MPN 7413BG). Key specifications — Bearing Industry Number: 7413; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Angular Contact Ball Bearing: 7415, 1 Row, 40°, Open, ABEC 1, Brass Cage, 75 mm Bore (MPN 7415BG). Key specifications — Bearing Industry Number: 7415; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Angular Contact Ball Bearing: 7415, 1 Row, 40°, Open, ABEC 1, Brass Cage, 75 mm Bore (MPN 7415BG). Key specifications — Bearing Industry Number: 7415; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Angular Contact Ball Bearing: 7407, 1 Row, 40°, Open, ABEC 1, Brass Cage, 35 mm Bore (MPN 7407BG). Key specifications — Bearing Industry Number: 7407; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Angular Contact Ball Bearing: 7407, 1 Row, 40°, Open, ABEC 1, Brass Cage, 35 mm Bore (MPN 7407BG). Key specifications — Bearing Industry Number: 7407; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Angular Contact Ball Bearing: 7332, 1 Row, 40°, Open, ABEC 1, Brass Cage, 160 mm Bore (MPN 7332BG). Key specifications — Bearing Industry Number: 7332; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Angular Contact Ball Bearing: 7332, 1 Row, 40°, Open, ABEC 1, Brass Cage, 160 mm Bore (MPN 7332BG). Key specifications — Bearing Industry Number: 7332; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Angular Contact Ball Bearing: 7406, 1 Row, 40°, Open, ABEC 1, Brass Cage, 30 mm Bore (MPN 7406BG). Key specifications — Bearing Industry Number: 7406; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Angular Contact Ball Bearing: 7406, 1 Row, 40°, Open, ABEC 1, Brass Cage, 30 mm Bore (MPN 7406BG). Key specifications — Bearing Industry Number: 7406; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Angular Contact Ball Bearing: 7328, 1 Row, 40°, Open, ABEC 1, Brass Cage, 140 mm Bore (MPN 7328BG). Key specifications — Bearing Industry Number: 7328; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Angular Contact Ball Bearing: 7328, 1 Row, 40°, Open, ABEC 1, Brass Cage, 140 mm Bore (MPN 7328BG). Key specifications — Bearing Industry Number: 7328; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.

More from NTN

View all NTN parts →
NTN Ball Screw Support Bearing: 25X62, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 25 mm Bore (MPN BST25X62-1BP4). Key specifications — Bearing Industry Number: 25X62; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Ball Screw Support Bearing: 25X62, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 25 mm Bore (MPN BST25X62-1BP4). Key specifications — Bearing Industry Number: 25X62; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Ball Screw Support Bearing: 40X90, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 40 mm Bore (MPN BST40X90-1BP4). Key specifications — Bearing Industry Number: 40X90; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Ball Screw Support Bearing: 40X90, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 40 mm Bore (MPN BST40X90-1BP4). Key specifications — Bearing Industry Number: 40X90; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Ball Screw Support Bearing: 30X62, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 30 mm Bore (MPN BST30X62-1BP4). Key specifications — Bearing Industry Number: 30X62; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Ball Screw Support Bearing: 30X62, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 30 mm Bore (MPN BST30X62-1BP4). Key specifications — Bearing Industry Number: 30X62; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Ball Screw Support Bearing: 35X72, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 35 mm Bore (MPN BST35X72-1BP4). Key specifications — Bearing Industry Number: 35X72; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Ball Screw Support Bearing: 35X72, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 35 mm Bore (MPN BST35X72-1BP4). Key specifications — Bearing Industry Number: 35X72; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Ball Screw Support Bearing: 40X72, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 40 mm Bore (MPN BST40X72-1BP4). Key specifications — Bearing Industry Number: 40X72; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Ball Screw Support Bearing: 40X72, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 40 mm Bore (MPN BST40X72-1BP4). Key specifications — Bearing Industry Number: 40X72; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN Ball Screw Support Bearing: 20X47, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 20 mm Bore (MPN BST20X47-1BP4). Key specifications — Bearing Industry Number: 20X47; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.
NTN
NTN Ball Screw Support Bearing: 20X47, 1 Row, 60°, Open, ABEC 7, Thermoplastic Cage, 20 mm Bore (MPN BST20X47-1BP4). Key specifications — Bearing Industry Number: 20X47; Brand: NTN; Contact Bearing Type: Angular Contact; Matched Bearing Type: Not Matched/Single Bearing; System of Measurement: Metric; Bearing Type: Single Bearing.