Features ER-16 spindle nose for collet versatility
Includes lifetime lubricated class 5 ball bearings
Reaches max speed of 10,000 RPM
Ensures secure installation with supplied screws
Adapts to different drive systems with included pulleys
The Sherline Flanged Cartridge Spindle ER-16 is a precision-engineered component designed for high-performance machining applications. It features an ER-16 spindle nose thread and taper, which is ideal for accommodating a variety of collet sizes, enhancing its versatility in different machining tasks. The spindle is equipped with two 20 mm, class 5 ball bearings that are lifetime lubricated and come with an adjustable preload, ensuring smooth and reliable operation over extended periods.
This spindle is capable of reaching a maximum speed of 10,000 RPM, although it is recommended to maintain a continuous speed of 4,000 RPM or less for optimal performance and longevity. The mounting provision includes three holes positioned at 120-degree increments, designed to accommodate 10-32 x 5/8 inch socket head cap screws, which are supplied with the product. This facilitates secure and stable installation in various setups.
The spindle assembly includes essential components such as a preload nut, bearing dust cover washer, and a flanged cartridge spindle body, all contributing to its robust construction and efficient functionality. The inclusion of a 2-step V-belt pulley and a 30-T timing belt pulley further enhances its adaptability to different drive systems, making it a versatile choice for precision machining tasks.
Note: Ensure proper installation and operation to prevent potential hazards associated with high-speed machinery.
1x Sherline Flanged Cartridge Spindle ER-16
1x 10-32 x 3/8″ Flat Point Set Screw
1x Preload Nut
1x Bearing Dust Cover Washer
1x 10-32 x 5/8″ SHCS
Class 5 Headstock Bearings
1x 10-32 x 3/16 Cup Point Set Screw
#2 x 1/4″ Self-Tapping Phillips Head Screws
1x 2-Step V-Belt Pulley
1x 30-T Timing Belt Pulley
1x Flanged Cartridge Spindle Body
1x ER-16 Spindle
1x ER-16 collet nut
Spindle diameter: 2.250" (57.15 mm)
Spindle body length: 3.0" (76.2 mm)
Hole through spindle: 0.405" (10 mm)
Spindle nose thread and taper: ER-16
Bearings: Two 20 mm, class 5, lifetime lubricated ball bearings with adjustable preload
End play (factory preload adjustment): 0.0002″ (0.0051 mm)
Maximum spindle speed: 10,000 RPM
Recommended continuous spindle speed: 4,000 RPM or less
Mounting provision: Three mounting holes at 120° increments, 0.2″ diameter with a 0.325″ diameter countersink, sized for 10-32 x 5/8″ socket head cap screws (supplied)
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
United Kingdom consumers exercising their statutory Right of Cancellation are subject to different conditions. See the Statutory Right of Cancellation.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
A valid Return Authorisation (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
The RA number is valid for 30 days. The returned item must be received within that period.
The RA number must be included with the return.
Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
Refunds are processed within 7 days after receipt and inspection of the returned item.
A £100 cleaning fee may apply to domestic robots returned in used or unclean condition.
A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
Consumables * — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tyres, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odour-absorbing products). Not eligible for return once unsealed.
Build-it-yourself products and items requiring customer assembly * — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
Digital Goods, Software, and Apps * — Final sale only, due to licensing restrictions.
Clearance Items * — Products identified as clearance or final sale, including end-of-life or discontinued items.
Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
On-Demand Items * — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfil a customer request.
* United-Kingdom consumers retain their statutory Right of Cancellation on these items. Its exercise is subject to the conditions and exclusions set out in the Statutory Right of Cancellation, and any reimbursement may be reduced to reflect a loss in value resulting from handling beyond inspection.
How to Request a Return Authorisation (RA)
While the same return policy applies, these orders require a separate contact process for returns.
RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".
