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Manufacturer NSK / RHP
TAC 03
Ball Screw Support
NSK TAC40-3 Ball Screw Support Bearing
Availability
Confirm at quotation
NSK / RHP · TAC 03 · Ball Screw Support · TAC40-3
Bore (d)
40 mm
OD (D)
110 mm
Width (B)
27 mm
Contact angle
55°
Dynamic load Ca
97 kN
Static axial load
181 kN
Limiting speed
3700 min-1
- Manufacturer
- NSK / RHP
- Product Family
- NSK Ball Screw Support Bearings
- Series
- TAC 03
- Designation
- TAC40-3
- Configuration
- Ball Screw Support
NSK TAC40-3 is a TAC 03 ball screw support bearing (40 x 110 x 27 mm) for special-bore high-load servo drives where axial capacity must increase without changing screw shaft diameter. Catalogue dynamic load Ca: 97 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 TAC40-3 is a special-bore TAC 03 high-load angular-contact thrust bearing that increases axial capacity within the same screw shaft envelope. The 55-degree contact angle and larger balls target heavy-duty servo and press feed applications.
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
- TAC40-3
- Configuration
- Ball Screw Support
Selection Guidance
Engineering checkpoints when specifying NSK TAC40-3 for a ball screw support application.
Engineering Specifications
NSK Super Precision Bearings Catalogue values for NSK TAC40-3. Parameters not tabulated for this size are omitted rather than estimated.
Basic dimensions and identification
| NSK designation | TAC40-3 |
|---|---|
| Series | TAC 03 |
| Bore diameter (d) | 40 mm |
| Outside diameter (D) | 110 mm |
| Width (B) | 27 mm |
| Contact angle | 55° |
Load ratings
| Basic dynamic load Ca | 97 kN |
|---|---|
| Limiting static axial load | 181 kN |
Speed, mass and lubrication
| Limiting speed (grease) | 3700 min-1 |
|---|---|
| Mass (approx.) | 1.28 kg |
Preload and axial rigidity
| Preload class | M |
|---|---|
| Preload (duplex DB/DF) | 3900 N |
| Axial rigidity (duplex DB/DF) | 970 N/um |
| Starting torque, grease (duplex DB/DF) | 0.5 Nm |
Dimensions
Mounting envelope and abutment shoulders for layout, housing design and screw-end integration.
Bore (d)
40 mm
Outside diameter (D)
110 mm
Width (B)
27 mm
| Bore diameter (d) | 40 mm |
|---|---|
| Outside diameter (D) | 110 mm |
| Width (B) | 27 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 TAC40-3. Parameters not shown require NSK manufacturer catalogue verification before design sign-off. Reference to NSK TAC40-3 supports engineering identification and quotation only.
Applications
Typical NSK TAC 03 ball screw support applications for NSK TAC40-3.
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 TAC40-3.
Arrangement and mounting
Special bore series - larger envelope with reduced bore for axial capacity upgrade
Preload
Catalogue preload class M. Duplex DB/DF preload: 3900 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 TAC40-3?
NSK TAC40-3 is a TAC 03 ball screw support bearing - Special-bore high-load 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 TAC40-3?
Catalogue dimensions for NSK TAC40-3 are 40 x 110 x 27 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 TAC40-3?
NSK TAC40-3 uses a 55° contact angle per the NSK Super Precision Bearings Catalogue for the TAC 03 series.
What is the limiting speed of NSK TAC40-3?
Grease lubrication limiting speed for NSK TAC40-3 is 3700 min-1.
What is the dynamic load rating of NSK TAC40-3?
Catalogue basic dynamic load Ca for NSK TAC40-3 is 97 kN. Multi-row arrangement ratings are shown separately when tabulated.
What preload applies to NSK TAC40-3 in duplex mounting?
Catalogue duplex DB/DF preload for NSK TAC40-3 is 3900 N with axial rigidity 970 N/um and starting torque 0.5 Nm. These are arrangement ratings, not single-bearing properties.
How do I order or identify NSK TAC40-3?
Base designation NSK TAC40-3 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 TAC40-3 designation, screw diameter, lead, speed, axial load and application context for ball screw support bearing engineering quotation.