Authorized NSK supply · Genuine NSK bearings in original packaging
For a correct NSK replacement, the bearing must match the full machine specification, not just the bore, OD and width. Check these four points against the old bearing and your machine documentation.
Open, shielded or sealed execution must follow the original design. Short stock codes on repair lists often drop the seal suffix.
Clearance and tolerance class decide running fit and heat at speed. Quote the full NSK suffix, not a size match.
Spindle and ball screw support positions often run as matched sets. State the arrangement and set quantity per position.
List the preload requirement, and separate drive-end and non-drive-end bearings so quantities and positions stay correct.
Only have the old bearing? Send the marking photos for identification
Key dimensions and attributes for 604-609 Deep Groove Ball Bearings: High Precision & Quality. Confirm the full suffix against your machine documentation.
| Category | Deep Groove Ball Bearing |
|---|
Bearings in the same series, often ordered together for the same spindle or feed axis.
Machine tool spindles, CNC feed axes and industrial equipment where the full NSK specification decides runout and positioning accuracy.
Spindle rebuilders and CNC service companies in Japan, Germany and Italy use Feed Mechanisms Company for authorized NSK supply with matched sets, measurement reports and full documentation.
★★★★★ 5.0
"They confirm the matching set and preload arrangement before dispatch, and every spindle we have rebuilt has met the runout specification."
★★★★★ 4.9
"The supplier provided the correct execution and measurement report, and our engineer verified the fit on arrival. The axis holds position to tolerance."
★★★★★ 4.9
"Genuine NSK packaging and full documentation. Our quality inspection passed on first sample."
Answers for purchasing engineers, maintenance supervisors and distributor buyers ordering NSK bearings from Feed Mechanisms Company.
Include the machine model, the full NSK part number with all suffixes, the bearing position, quantity per position, destination country and postcode, and your required delivery date. Add the adapter sleeve or housing reference if the bearing is mounted in one.
For precision spindles and feed axes, replace the complete matched set. A single new bearing combined with used ones may not hold runout or positioning accuracy. Tell us the set arrangement and preload, and we confirm the matching set before dispatch.
Any alternative is listed as a separate line item next to the requested part number. No technical change goes ahead without your approval.
Genuine NSK bearings ship in original NSK packaging with certificates and full documentation. Your written quote lists the product documents and shipping papers for the order, so you can plan incoming inspection.
Send the full NSK part number, bearing position and quantity. You receive a written quote with price and currency, stock status, estimated lead time and quote validity.
Feed Mechanisms Company · 831 Lakeview Drive, Suite 130, Blue Bell, PA 19442, USA
