Authorized NSK supply for buyers who order by the complete part number.
NSK Bearings: Source Factory Direct Sales supplies genuine NSK bearings to spindle rebuild shops, CNC retrofit specialists and maintenance buyers worldwide. We don't build bearings. Our job is to confirm the exact reference, position and execution your machine needs before we quote.
§ Who we are
An NSK bearing supplier that matches each reference to the machine it goes into.
NSK Bearings: Source Factory Direct Sales (jpnsk.com) is an authorized NSK bearing supplier for precision machinery, feed mechanisms and industrial equipment. We match each bearing reference to the equipment it serves, so the bearing that arrives is the one the machine was built for.
Our range covers NSK super-precision series and the general bearings that sit in the same machine, so a spindle set, ball screw supports and motor-end bearings can go on one order. Most of our buyers handle machine repairs, replacement assemblies and specified-part purchasing. We accept enquiries from markets worldwide.
Spindle configurations
Super-precision angular contact & cylindrical roller bearings
Feed mechanisms & linear axes
Ball screw support bearings
General positions
Deep groove: open, shielded and sealed executions
Larger & specified positions
Spherical roller, self-aligning ball and thrust bearings
§ Working principles
Three rules that keep wrong bearings out of your machine.
These three rules come straight from the mistakes buyers report: stub stock codes, mixed drive-end and non-drive-end lines, and substitutes nobody signed off.
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01
We don't guess.
If the list only gives a size or a stub code, we ask for the missing detail before quoting. Matching by dimensions alone doesn't prove the bearing suits the position.
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02
Full part number first.
Seals, clearance, precision class, arrangement and preload are all in the suffix. We quote against the complete NSK reference, never a shortened stock code.
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03
Buyer approves every change.
Any alternative goes on the quote as its own clearly marked line. No technical change goes ahead until you approve it in writing.
§ Genuine & documented
Genuine NSK bearings in original packaging, with documentation that gets through incoming inspection.
Every NSK bearing we supply is genuine and ships in original NSK packaging with its documentation. Before you order, we confirm in writing which product documents we can actually provide for your order. Your quality team knows what to expect on arrival.
- ✓Authorized NSK supply. Genuine NSK product only, no look-alike brands.
- ✓Original packaging. Labels and boxes stay as NSK packed them, ready to check against your order.
- ✓Certificates & documentation. Available documents are confirmed on the written quote. Ask about measurement reports for precision sets.
- ✓Clear receiving terms. Check labels, quantity and appearance on arrival. If anything doesn't match, send us the order number and photos.
§ Buyers we serve
Built around buyers who repair, rebuild and buy to specification.
Our buyers are purchasing engineers, maintenance supervisors and distributor buyers. Each one has to check part numbers, positions and quantities line by line.
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Spindle rebuild shops
Matched sets and preload arrangement confirmed before dispatch, so rebuilt spindles can meet runout specification.
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CNC retrofit service providers
Ball screw support bearings in the correct execution for axis retrofits that have to hold position to tolerance.
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Machine tool rebuilders
Super-precision and general machine tool bearings on one order, each line listed by position.
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Precision grinding & high-speed spindle builders
Cylindrical roller and angular contact bearings supplied to the exact tolerance class the design calls for.
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Precision machinery maintenance teams
One direct contact for repair quantities, maintenance lists and long-term spare parts, plus fast ID from bearing markings when a machine is down.
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Distributors buying to specification
Line-by-line quantities, clear commercial terms and the same reference every time you repeat an order.
§ Global enquiries
We take NSK bearing enquiries from buyers worldwide.
NSK Bearings: Source Factory Direct Sales accepts enquiries from every market. The buyers quoted on this page are in Japan, Germany, South Korea, Italy, France and the United States. Tell us the destination country and postcode, and we confirm shipping terms on the written quote.
- Japan
- Germany
- South Korea
- Italy
- France
- United States
Office · Blue Bell, Pennsylvania, USA
831 Lakeview Drive, Suite 130, Blue Bell, PA 19442, USA
Red markers: countries of the buyers quoted on this page. Ring: office in Blue Bell, Pennsylvania.
§ From the workshop floor
What spindle and machine tool buyers say after installation.
Swipe to read more →
Our spindle rebuild shop depends on NSK super-precision bearings from jpnsk.com. They confirm the matching set and preload arrangement before dispatch, and every spindle we have rebuilt has met the runout specification.
When a high-speed spindle failed, they identified the correct NSK precision reference from the old bearing markings the same day. The replacement arrived within the week and the machine is back in production.
As a precision machinery maintenance buyer, I value suppliers who do not guess. They asked about speed, preload and lubrication before confirming the NSK series. That discipline has kept our machine downtime low.
§ How we communicate
Engineer to engineer: we ask about speed, preload and lubrication before we quote.
We talk to you the way your own engineers would. Before we confirm an NSK series, we ask about operating speed, preload and lubrication, and then confirm the exact execution, whether the assembly is complete, and any alternatives. Expect questions first. Then a written quote.
| Item | Why we ask |
|---|---|
| Machine model | Ties each bearing to the equipment it serves |
| Full NSK suffix | Seals, clearance, precision class, arrangement |
| Bearing position | Keeps drive-end and non-drive-end lines apart |
| Speed · preload · lubrication | Confirms the series fits the operating conditions |
| Sleeve or housing | Checks the assembly is complete |
| Quantity · destination · date | Quantities, shipping terms and the date you need it |
Missing the full reference? Send a clear photo of the markings on the old bearing and we will help confirm it.
§ Start with your list
Send your spindle bearing list and we'll confirm every line before quoting.
List each bearing by position with the full NSK reference and quantity. If anything is missing, we ask first. Your written quote covers model, quantity, price and currency, stock status, estimated lead time, validity and the documents we can provide.
- +86 152 691 88020
- info@jpnsk.com