Feed Mechanisms Company
Machine tool spindle assembly in close-up with ground metal surfaces Ball screw running along a linear axis on a CNC machine CNC grinding machine with its wheel beside a precision workpiece
Applications

NSK bearing applications for machines built around spindles, feed axes and auxiliary drives.

Find bearings by equipment and work order. Feed Mechanisms Company quotes each line by complete NSK model and shaft position, for buyers worldwide.

Authorized NSK channels

Quoted by full NSK model

Spindle, feed axis, auxiliary drive

362 NSK products online

Find by equipment

Start from the machine on your work order.

Each application page groups the NSK product families used on that equipment. Open your application to see the matching bearing categories and products.

Precision Machinery equipment fitted with NSK bearings

01

Precision Machinery

Precision machinery relies on bearings at spindles, rotary stages, and auxiliary drives, where small shifts in runout or stiffness can show up directly in…

Super-Precision Bearings · Super-Precision Angular Contact Ball Bearings · Angular Contact Ball Bearings · Miniature Bearings

View products 117 models
Machine Tools & Spindle Rebuilds equipment fitted with NSK bearings

02

Machine Tools & Spindle Rebuilds

Machine tool spindles typically use angular contact ball bearings in matched sets, often with cylindrical roller bearings at specified shaft positions. High speed, heat,…

Machine Tool Spindle Bearings · Super-Precision Angular Contact Ball Bearings · Super-Precision Bearings · Angular Contact Ball Bearings

View products 136 models
CNC Grinding equipment fitted with NSK bearings

03

CNC Grinding

CNC grinders use bearings in wheel spindles, workhead spindles, and supporting axes, where any vibration or runout can transfer to surface finish and dimensional…

Machine Tool Spindle Bearings · Super-Precision Angular Contact Ball Bearings · Cylindrical Roller Bearings · Angular Contact Ball Bearings

View products 162 models
Automation Equipment equipment fitted with NSK bearings

04

Automation Equipment

Automation equipment uses bearings in servo motors, reducers, transfer conveyors, packaging stations, and auxiliary drives, often alongside separate precision axes. Frequent starts and stops,…

Deep Groove Ball Bearings · Ball Bearings · Electric Motor Bearings · Electrically Insulated Bearings

View products 210 models
Linear Axis & Feed Retrofits equipment fitted with NSK bearings

05

Linear Axis & Feed Retrofits

Linear axis and feed mechanism retrofits rely on ball screw support bearings, angular contact sets, and thrust bearings to hold the screw axially and…

Angular Contact Ball Bearings · Super-Precision Angular Contact Ball Bearings · Thrust Ball Bearings · Needle Roller Bearings

View products 97 models
Industrial Equipment Repair & Replacement equipment fitted with NSK bearings

06

Industrial Equipment Repair & Replacement

Repair and replacement work covers bearings across motors, pumps, fans, gearboxes, conveyors, vehicles, and heavy machinery, usually under pressure to return equipment to service.…

Bearings by Industry · Special Bearings · Roller Bearings · Ball Bearings

View products 362 models
Same machine, different positions

Each shaft position needs its own enquiry line.

Spindle, feed axis and auxiliary drive bearings do different jobs, even on one machine. List function, preload, precision and arrangement by position, and the quote matches what the equipment requires.

What to state in an NSK bearing enquiry for spindle, feed axis and auxiliary drive positions
State in the enquiry SpindleAngular contact, cylindrical roller, matched sets Feed axisBall screw support bearings Auxiliary driveDeep groove and thrust bearings
Function Identify the line as a spindle bearing and name the machine. Identify the feed axis or linear axis the bearing supports. Identify the auxiliary drive or the defined axial support position.
Preload State the preload required for the bearing or set. State the preload given in the axis specification. State it where the equipment specification calls for it.
Precision State the precision class from the spindle specification. State the precision class and the drawing version. Keep the complete NSK model from the parts list.
Arrangement State the matched arrangement of the set. State the arrangement if bearings are ordered as a set. List the quantity for each position alongside the main parts.
Rebuild and new build

A rebuild keeps the specification. A retrofit records the change.

Repair work holds to the exact NSK specification. Retrofit and new-build projects add a drawing version, and any engineering change is reviewed on its own.

Technician fitting a precision bearing set into a machine tool spindle housing during a rebuild

Machine rebuild and repair

  • Buy by complete NSK model, not by size alone.
  • Keep the exact specification the equipment or repair requires.
  • Enquire by single model, matched set or equipment parts list.
Ball screw and support bearing housing being mounted on a linear axis during a retrofit

Retrofit and new build

  • State the drawing version with each enquiry line.
  • Engineering changes get a separate review, never a routine substitution.
  • Alternatives are marked separately and need your approval.
Who decides what

Three roles shape every bearing order.

Function, arrangement and revision control each sit with a different person. The quote should serve all three.

  • Automation mechanical engineer

    Sets the axis function and the approved bearing specification.

  • Precision-machine service lead

    Sets the bearing set arrangement and the repair requirements.

  • Project procurement specialist

    Tracks drawing versions and separately quoted alternatives.

From the shop floor

Rebuild, grinding and retrofit buyers, in their own words.

4.9

Machine tool rebuild

Pricing on a set of NSK super-precision bearings for a machine tool rebuild was competitive. The bearings arrived with the correct packaging and documentation, and our quality inspection passed on first sample.

Park Sang-ho

Park Sang-hoPark Precision Machine, South Korea

5.0

CNC grinding

We had an urgent spindle bearing failure on a CNC grinder. The supplier identified the correct NSK precision reference, shipped same-day, and the spindle was rebuilt and back in production within the week.

Michael Chen

Michael ChenChen Precision Grinding, USA (CA)

4.9

Linear axis retrofit

We needed NSK ball screw support bearings for a linear axis retrofit. The supplier provided the correct execution, and our engineer measured the fit on arrival. The axis now holds position to the tolerance we specified.

Hans-Peter Becker

Hans-Peter BeckerBecker Präzisionsantriebe, Germany

Pair of matched precision angular contact ball bearings on a clean workbench Engineer checking a precision bearing with a measuring instrument Industrial machine assembly with its drive components exposed
Purchasing support

One supplier for the model, the set and the whole parts list.

Feed Mechanisms Company supports NSK purchasing from model identification to written quotation, so precision and auxiliary bearings for one machine stay in one enquiry.

  • Model confirmation

    Incomplete model? A clear photo of the marking helps confirm the exact specification.

  • Matched set enquiry

    Specify the matched arrangement and required preload for the set.

  • Full-machine parts list

    Quote auxiliary bearings with the main precision parts, with no separate buying for one machine.

  • Written quotation

    Model, quantity, price and currency, stock status, estimated lead time, validity and applicable terms.

FAQ

Questions on shaft positions, alternatives and drawings

Short answers for engineers, service leads and project buyers sourcing NSK bearings.

How do spindle and feed-axis enquiries differ?

They differ by bearing function and product family. A spindle line usually covers super-precision angular contact or cylindrical roller bearings, often with a matched arrangement and required preload. A feed-axis line covers ball screw support bearings. List them separately, even when they belong to one machine.

What should be provided before an alternative is considered?

Provide the exact specification, the complete assembly, and whether a separately marked alternative is acceptable. Function, preload, precision and drawing version give the comparison its basis. Any technical change requires your approval.

What happens when the drawing version changes?

State the new version so the affected lines can be checked against it. A resulting engineering change is reviewed separately and is not treated as a routine substitution. It goes ahead only with your approval.

Can I enquire if the bearing model is incomplete?

Yes. Send a clear photo of the marking and note the items still to be confirmed. The specification is settled before you accept the quotation.

Request a quotation

Tell us the equipment and the shaft position.

Feed Mechanisms Company provides written quotations on NSK bearings for buyers worldwide. Share your machine, position and model to get started.

Precision NSK bearings packed and ready for shipment on a warehouse bench