--- product_id: 553845808 title: "SING F LTD 4PCS 163110-2RS Deep Groove Ball Bearings Double Rubber Seal Bearings Carbon Steel for Bike Rear Hub Industrial Equipment 16x31x10mm" brand: "sing f ltd" price: "$72.81" currency: USD in_stock: true reviews_count: 5 category: "Sing F Ltd" url: https://www.desertcart.us/products/553845808-sing-f-ltd-4pcs-163110-2rs-deep-groove-ball-bearings store_origin: US region: United States of America --- # Carbon steel for high durability 16x31x10mm precision sizing Double rubber seals for dust protection SING F LTD 4PCS 163110-2RS Deep Groove Ball Bearings Double Rubber Seal Bearings Carbon Steel for Bike Rear Hub Industrial Equipment 16x31x10mm **Brand:** sing f ltd **Price:** $72.81 **Availability:** ✅ In Stock ## Summary > 🛠️ Upgrade your ride and gear with bearings that keep you moving smoothly—don’t get left behind! ## Quick Answers - **What is this?** SING F LTD 4PCS 163110-2RS Deep Groove Ball Bearings Double Rubber Seal Bearings Carbon Steel for Bike Rear Hub Industrial Equipment 16x31x10mm by sing f ltd - **How much does it cost?** $72.81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/553845808-sing-f-ltd-4pcs-163110-2rs-deep-groove-ball-bearings) ## Best For - sing f ltd enthusiasts ## Why This Product - Trusted sing f ltd brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last with Carbon Steel:** High hardness material guarantees long service life even under demanding conditions. - • **Versatile Use Across Industries:** Perfect for cycling enthusiasts and industrial equipment alike, making it a multi-purpose essential. - • **Precision Fit for Peak Performance:** Exact 16mm inner and 31mm outer diameter ensures seamless integration with bike rear hubs and industrial gear. - • **Ready to Roll with Pre-Lubrication:** Comes pre-greased for smooth operation right out of the box—minimal maintenance required. - • **Double Sealed for Ultimate Protection:** Rubber seals lock out dust and debris, reducing friction and extending bearing lifespan. ## Overview The SING F LTD 163110-2RS deep groove ball bearings measure 16x31x10mm and are crafted from durable carbon steel. Featuring double rubber seals, these bearings protect against dust and reduce friction, ensuring high-speed performance and longevity. Sold in a pack of four pre-lubricated units, they are ideal for bike rear hubs and various industrial applications, combining precision engineering with versatile reliability. ## Description Item Descriptions:-[Type & Size] : This is a 163110-2RS deep groove ball bearings, 16mm inner diameter, 31 outer diameter, and 10mm thickness.-[Durable Material] : Made of carbon steel material, high hardness, durability and long service life.-[Double Sealed] : Closed with shields to protect the bearings from dust or other foreign matter, and has the features of small friction and high-limit speed.-[Wide Application] : Deep groove ball bearings can be used in all kinds of industrial equipment and match the rear hubs of the bike.-[Package List] : Contains 4pcs deep groove ball bearings which pre-lubricated, easy to maintain.Package:4pcs 163110-2RS BearingsItem Specifications:Model:163110-2RSMaterial:Carbon steel, rubberSealed Type:Double sealedInner diameter:16mmOuter diameter:31mmThickness:10mm Review: These are ZERO STAR BEARINGS!!! Buyer beware! I popped the grease seals off to see how much factory grease was in them and there were four small dollops of clear dielectric grease on only one side of each bearing!!! Totally UNACCEPTABLE! These bearings come basically WORTHLESS because they will begin to wear and fail as soon as they are put into service. I greased them myself with red and tacky grease and popped the seals back on them. I shouldn't have to do this to a sealed bearing, but I had to do it to all four I received! If you're not going to disassemble these bearings and apply your own grease then go and purchase brand name, high quality bearings! Review: I used these to rebuild my old square taper bottom bracket. Easy install, good spec and tolerances. They are still very smooth after ~400 miles of road and some damp riding. ## Features - [Type & Size] : This is a 163110-2RS deep groove ball bearings, 16mm inner diameter, 31 outer diameter, and 10mm thickness. - [Durable Material] : Made of carbon steel material, high hardness, durability and long service life. - [Double Sealed] : Closed with shields to protect the bearings from dust or other foreign matter, and has the features of small friction and high-limit speed. - [Wide Application] : Deep groove ball bearings can be used in all kinds of industrial equipment and match the rear hubs of the bike. - [Package List] : Contains 4pcs deep groove ball bearings which pre-lubricated, easy to maintain. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BJ8SF4CQ | | Item model number | SP-EMM729 | | Manufacturer | SING F LTD | | Package Dimensions | 12.7 x 10.9 x 1.1 cm; 110 g | ## Product Details - **Bearing number:** 163110-2RS - **Bore diameter:** 16 Millimeters - **Brand:** SING F LTD - **Item thickness:** 10 Millimeters - **Material:** Carbon Steel ## Images ![SING F LTD 4PCS 163110-2RS Deep Groove Ball Bearings Double Rubber Seal Bearings Carbon Steel for Bike Rear Hub Industrial Equipment 16x31x10mm - Image 1](https://m.media-amazon.com/images/I/71tuVpQMKyL.jpg) ## Customer Reviews ### ⭐ Review *by G***H on 7 September 2025* These are ZERO STAR BEARINGS!!! Buyer beware! I popped the grease seals off to see how much factory grease was in them and there were four small dollops of clear dielectric grease on only one side of each bearing!!! Totally UNACCEPTABLE! These bearings come basically WORTHLESS because they will begin to wear and fail as soon as they are put into service. I greased them myself with red and tacky grease and popped the seals back on them. I shouldn't have to do this to a sealed bearing, but I had to do it to all four I received! If you're not going to disassemble these bearings and apply your own grease then go and purchase brand name, high quality bearings! ### ⭐⭐⭐⭐⭐ Review *by B***R on 18 June 2023* I used these to rebuild my old square taper bottom bracket. Easy install, good spec and tolerances. They are still very smooth after ~400 miles of road and some damp riding. ### ⭐⭐⭐⭐ Review *by R***L on 18 August 2025* I expensive and worker so it's a go. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/553845808-sing-f-ltd-4pcs-163110-2rs-deep-groove-ball-bearings](https://www.desertcart.us/products/553845808-sing-f-ltd-4pcs-163110-2rs-deep-groove-ball-bearings) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-17*