dfh.fm
688-2RS Bearings
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10-pack of 688-2RS sealed miniature bearings for compact 3D-printer, CNC, robotics, and hobby motion assemblies that call for an 8mm ID × 16mm OD × 5mm bearing.
Why this bearing
- 2RS rubber seals on both sides help keep grease in and dust out.
- Deep-groove ball bearing geometry supports smooth high-speed radial motion in a compact package.
- Chrome steel bearing construction is the standard choice for small motion hardware and replacement spares.
- Sold as a 10-pack, so you can replace a set instead of buying one-off singles.
Specifications
- Designation / MPN: 688-2RS
- Bore / inner diameter: 8mm
- Outer diameter: 16mm
- Width: 5mm
- Closure: 2RS dual rubber seals
- Type: miniature deep-groove radial ball bearing
- Quantity: 10 bearings
Use it for
Use these wherever your printed part, motion assembly, or BOM specifically calls for a 688-2RS / 8×16×5mm sealed bearing. For nearby sizes, see our 625-2RS bearings, F695-2RS flanged bearings, and F623-RS flanged bearings.
Check before ordering
- This is a 688-2RS bearing only; it is not an LM8UU/LM8LUU linear bearing.
- Match all three dimensions — 8mm bore, 16mm OD, 5mm width — before replacing an existing bearing.
- Choose a flanged bearing instead if your application needs a locating flange.
Shipping & Returns
Returns:
Thank you for purchasing from dfh.fm. I want you to be completely satisfied with your purchase. If for any reason you are not satisfied, you may return your purchase within 60 days of the original purchase date.
Defective items: Please inspect items upon receipt. If you receive a defective item, you may return it for a full refund or replacement within 90 days of the original purchase date. Please contact me to initiate a return for a defective item.
Non-defective items: If you are not satisfied with a non-defective item, you may return it for a refund within 30 days of the original purchase date. A 20% restocking fee will be deducted from the refund amount, to offset the time and inconvenience, as I am the sole employee processing the return and restocking the item. The fee also covers the costs associated with processing the return. Refunds for non-defective items will be issued through the original payment method.
Preordered items: Due to the nature of preorders, delivery dates are subject to change. Please keep in mind that, If you have preordered an item, it is not eligible for a refund until after it has arrived at the store. Once the item arrives at the store and is inspected, you may request a refund within 30 days of the original purchase date. Please note that refunds for preordered items may take up to 10 days to be issued.
To initiate a return, please open a ticket on the shop’s discord channel, with your order number and the reason for the return. We will provide you with further instructions on how to return your purchase.
Thank you for shopping with us. If you have any questions or concerns, please don't hesitate to contact me, via Discord.
Order alterations and cancellations:
Once an order has ben submitted, no alterations can be made. This includes adding or removing items or canceling orders. You are welcome to return an order, once you have taken receipt, following the returns procedure listed above.
Shipping:
US Shipping is via UPS or USPS. The way it is set up shows the least expensive options for standard, priority and express shipping. I can not take special requests for specific carriers at this time.
International shipping is mostly UPS, as I utilize Zonos/UPS integration to tally extremely accurate import and shipping costs.
I require a telephone and email with international orders and you must make yourself available to the carrier or your customs, should they require more information. If you are unreachable and the package is discarded or rerturned, I will not be responsible for rerturning your shipping cost.
If there is a problem with an international order, it is my choice to refund part or all of the order, or send a replacement.
Addresses are verified through Shopify, but the customer is still responsible for inputting their address in the correct format. Any returns or lost shipments, due to incorrectly addressed packages, are the responsibility of the customer.
