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Manufacturer NSK / RHP
TAC 03
Ball Screw Support
NSK 40TAC03D Ball Screw Support Bearing
Availability
Confirm at quotation
NSK / RHP · TAC 03 · Ball Screw Support · 40TAC03D
Bore (d)
40 mm
OD (D)
90 mm
Width (B)
23 mm
Contact angle
55°
Dynamic load Ca
78 kN
Static axial load
118 kN
Limiting speed
4600 min-1
- Manufacturer
- NSK / RHP
- Product Family
- NSK Ball Screw Support Bearings
- Series
- TAC 03
- Designation
- 40TAC03D
- Configuration
- Ball Screw Support
NSK 40TAC03D is a TAC 03 ball screw support bearing (40 x 90 x 23 mm) for electric injection molding drives, servo presses and heavy-load ball screw feed mechanisms. Catalogue dynamic load Ca: 78 kN.
- Product Type
- Ball screw support bearing
- Industry
- Machine tools, precision automation
Why Source Through Golden Bearing Company
Authorised industrial distributor
Engineering Support
Duty review, bore selection, and application engineering assistance
Authorised Manufacturer Data
Specifications published exactly as manufacturer catalogue data
Technical Assistance
Configuration, interchangeability, and spare element guidance
Product Overview
NSK 40TAC03D is a TAC 03 high-load angular-contact thrust ball bearing for ball screw supports where limiting axial load capacity is the primary selection driver. Catalogue dimensions are 40 x 90 x 23 mm.
Commercial Identification
Authoritative procurement identifiers for ERP, RFQ, and purchase order entry. Copy values directly where shown.
- Manufacturer
- NSK / RHP
- Product Family
- NSK Ball Screw Support Bearings
- Series
- TAC 03
- Designation
- 40TAC03D
- Configuration
- Ball Screw Support
Selection Guidance
Engineering checkpoints when specifying NSK 40TAC03D for a ball screw support application.
Engineering Specifications
NSK Super Precision Bearings Catalogue values for NSK 40TAC03D. Parameters not tabulated for this size are omitted rather than estimated.
Basic dimensions and identification
| NSK designation | 40TAC03D |
|---|---|
| Series | TAC 03 |
| Bore diameter (d) | 40 mm |
| Outside diameter (D) | 90 mm |
| Width (B) | 23 mm |
| Contact angle | 55° |
Load ratings
| Basic dynamic load Ca | 78 kN |
|---|---|
| Limiting static axial load | 118 kN |
Speed, mass and lubrication
| Limiting speed (grease) | 4600 min-1 |
|---|---|
| Mass (approx.) | 0.659 kg |
Preload and axial rigidity
| Preload class | M |
|---|---|
| Preload (duplex DB/DF) | 2500 N |
| Axial rigidity (duplex DB/DF) | 780 N/um |
| Starting torque, grease (duplex DB/DF) | 0.26 Nm |
Dimensions
Mounting envelope and abutment shoulders for layout, housing design and screw-end integration.
Bore (d)
40 mm
Outside diameter (D)
90 mm
Width (B)
23 mm
| Bore diameter (d) | 40 mm |
|---|---|
| Outside diameter (D) | 90 mm |
| Width (B) | 23 mm |
NSK Catalogue Reference
Authoritative source for the engineering values published on this page.
Published data basis
Engineering values on this page are taken from the NSK Super Precision Bearings Catalogue for NSK 40TAC03D. Parameters not shown require NSK manufacturer catalogue verification before design sign-off. Reference to NSK 40TAC03D supports engineering identification and quotation only.
Applications
Typical NSK TAC 03 ball screw support applications for NSK 40TAC03D.
Ball screw support
Precision feed axis
Heavy-load servo drives
Injection molding feeds
High limiting axial load
Configuration and Arrangement
Series-specific mounting, preload and arrangement context for NSK 40TAC03D.
Arrangement and mounting
Duplex DB/DF arrangement with medium preload per TAC 03 NSK catalogue tables
Preload
Catalogue preload class M. Duplex DB/DF preload: 2500 N.
TAC 03 series role
55-degree contact angle with larger balls for higher limiting axial load in heavy-duty servo and press feed applications.
Frequently Asked Questions
Engineering and procurement answers for specification review and quotation.
What is NSK 40TAC03D?
NSK 40TAC03D is a TAC 03 ball screw support bearing - High-load drive angular contact thrust ball bearing. It is used at the fixed or floating end of precision ball screw drives where axial rigidity and accurate screw guidance are required.
What are the dimensions of NSK 40TAC03D?
Catalogue dimensions for NSK 40TAC03D are 40 x 90 x 23 mm (bore x OD x width). Mounting shoulder dimensions are listed in the Dimensions section when tabulated in the NSK Super Precision Bearings Catalogue.
What is the contact angle of NSK 40TAC03D?
NSK 40TAC03D uses a 55° contact angle per the NSK Super Precision Bearings Catalogue for the TAC 03 series.
What is the limiting speed of NSK 40TAC03D?
Grease lubrication limiting speed for NSK 40TAC03D is 4600 min-1.
What is the dynamic load rating of NSK 40TAC03D?
Catalogue basic dynamic load Ca for NSK 40TAC03D is 78 kN. Multi-row arrangement ratings are shown separately when tabulated.
What preload applies to NSK 40TAC03D in duplex mounting?
Catalogue duplex DB/DF preload for NSK 40TAC03D is 2500 N with axial rigidity 780 N/um and starting torque 0.26 Nm. These are arrangement ratings, not single-bearing properties.
How do I order or identify NSK 40TAC03D?
Base designation NSK 40TAC03D must be extended with seal, arrangement, preload and accuracy suffixes for a complete ordering code. Send existing marking, screw diameter, speed and application duty for engineering identification.
Request an Engineering Quote
Share NSK 40TAC03D designation, screw diameter, lead, speed, axial load and application context for ball screw support bearing engineering quotation.