Feed Mechanisms Company

Buyer FAQ

NSK Bearing FAQ: Specification and Written Quotes

Use this page to send Feed Mechanisms Company an NSK bearing enquiry that can be quoted, stated by full model, spindle or feed-axis function, preload, precision class and drawing revision.

Close view of a super-precision angular contact ball bearing resting on a steel workbench

Pinned questions

Start with bearing position and approved specification

A precise enquiry names where the bearing runs and what specification it must keep. These two answers settle both points for spindle, feed-axis and replacement purchases.

Machine tool spindle assembly opened on a service bench with its bearings exposed

How do spindle and feed-axis enquiries differ?

Spindle enquiries turn on bearing type, arrangement and preload, while feed-axis enquiries turn on the ball screw support bearing and the axis function it serves. List them as separate positions so each line is quoted against the right requirement.

Item Spindle Feed axis
Bearing lines Super-precision angular contact and cylindrical roller bearings, matched sets Ball screw support bearings
State clearly Full model, arrangement, preload, precision class Full model, axis function, drawing revision
Read about part identification
Engineer in a workshop holding a precision bearing up to the light for inspection

What should be provided before an alternative is considered?

Provide the exact original specification and state whether an alternative may be considered at all. This keeps any engineering change apart from routine purchasing.

  • Full NSK model, or a clear photo of the markings
  • Spindle or feed-axis function and the complete assembly
  • Required preload, precision class and drawing revision
  • Your position on separately marked alternatives
Read about alternatives

Part Identification

Identify the bearing by its full NSK model and its position on the machine. Where the model is incomplete, a clear photo of the markings starts the check.

Precision bearing outer rings lined up on a clean inspection table under bright light
What if the NSK part number on my bearing is incomplete?

Send a clear photo of the bearing markings and list what is still unconfirmed. Add the spindle or feed-axis function and the drawing revision if you have them. The identification gap is resolved before you accept a quote.

Why enquire by full NSK model rather than by dimensions?

The full model preserves the exact specification your machine or service record calls for. Bearings with the same bore, outside diameter and width can still differ in precision class, arrangement or preload. A dimension-only enquiry leaves those differences open.

How should I separate spindle and feed-axis items on a repair list?

Mark each line with its position: spindle, feed axis or auxiliary drive. Then add the full model and quantity for that line. This stops a support bearing being read as a spindle bearing, or the reverse.

Matched Bearing Sets

Specify a matched set by full model, pairing arrangement and required preload. Feed Mechanisms Company supplies matched sets to those stated requirements.

How do I specify arrangement and preload for a matched set?

State the pairing arrangement and required preload on the same line as the full NSK model. Name the arrangement as your drawing or service record gives it, such as back-to-back, face-to-face or tandem. Add the precision class and the number of sets, so the quote reflects the complete requirement.

What if my parts list does not state the preload?

Flag preload as an open item on your enquiry. Include the drawing revision or a clear photo of the existing bearing markings. The point is settled before you accept the quote, so you can check the offer against the machine requirement.

Alternatives

Alternatives are marked separately and technical changes require buyer approval. Your specified NSK model stays visible, so an engineering change is never treated as a routine substitution.

How is an alternative shown on a quote?

An alternative is marked separately from the model you requested. Your procurement team can track it against the drawing revision. Your engineer can review it as its own decision.

Who approves a technical change?

The buyer approves every technical change. A change to the specified bearing proceeds only with your approval. Until then, your original specification remains the reference.

Have a list with mixed spindle and feed-axis lines?

Send Your Model List

Quotes and Documents

A written quote from Feed Mechanisms Company sets out the model, commercial terms and availability line by line. Product documents are confirmed at the quotation stage.

What does the written quote list?

The written quote gives you each item needed to review the offer before ordering:

  • Product model and quantity
  • Price and currency
  • Stock status and estimated lead time
  • Quote validity period
  • Applicable shipping or tax terms
Which product documents can I receive?

The document scope is confirmed at the quotation stage. Name the documents your quality team needs when you enquire. You then review the confirmed scope alongside the quote, before placing the order.

Can auxiliary bearings be quoted with the main precision parts?

Yes, auxiliary bearings can share one enquiry with the main precision parts. Deep groove ball bearings and thrust bearings for the same machine can sit on the same list, which saves purchasing them separately. View NSK bearing products.

Shipping and Receipt

Shipping method and transport documents are confirmed for each order. On arrival, check labels, quantity and appearance, and report any difference with your order number and photos.

Sealed cartons of industrial bearings stacked on a pallet in a warehouse dispatch area
How are the shipping method and documents decided?

They are confirmed order by order. Give your destination country and postcode with the enquiry, along with your required date. The shipping method, dispatch arrangement and required transport documents are then confirmed for that order.

What should I check when the bearings arrive?

Check the product labels, the quantity and the outward condition. Compare the labels and quantity against your order line by line. Keep the original packaging until the check is complete.

What if the delivery does not match my order?

Contact Feed Mechanisms Company with your order number and photos of the difference. Show the label, the quantity or the condition concerned. This gives both sides a clear record for resolving it.

Is Feed Mechanisms Company an Authorized NSK Supplier?

Yes. Feed Mechanisms Company is an Authorized NSK Supplier, sourcing through authorized channels and serving buyers worldwide from 831 Lakeview Drive, Suite 130, Blue Bell, PA 19442, USA. The focus is NSK bearings for precision machinery, feed mechanisms and industrial equipment, purchased by complete bearing model.

View NSK bearing products
CNC grinding machine in a precision workshop with a technician servicing the spindle

Ask About Your Part Number

Send your NSK model or a clear photo of the markings, and request a written quote. Add the bearing position, preload, precision class, drawing revision, quantity and required date.