--- product_id: 20782485 title: "20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm" brand: "chiloskit" price: "¥3244" currency: JPY in_stock: true category: "Chiloskit" url: https://www.desertcart.jp/products/20782485-20pcs-v-deep-groove-ball-bearings-pulley-mini-bearings-deep store_origin: JP region: Japan --- # Optimized low friction for high speed High precision carbon steel Double metal shielded design 20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm **Brand:** chiloskit **Price:** ¥3244 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your micro pulley game with precision and power! ## Quick Answers - **What is this?** 20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm by chiloskit - **How much does it cost?** ¥3244 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/20782485-20pcs-v-deep-groove-ball-bearings-pulley-mini-bearings-deep) ## Best For - chiloskit enthusiasts ## Why This Product - Trusted chiloskit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Powerhouse:** Ideal for 3D printers, small motors, medical devices, and more—upgrade your gear with confidence. - • **Effortless Efficiency:** Low friction design minimizes energy loss, perfect for high-speed micro pulley systems. - • **Precision Perfect Fit:** Manufactured to strict ABEC tolerance standards for exact 4x13x6mm dimensions. - • **Shielded for Longevity:** Double metal shields lock in lubricant and keep out contaminants, extending bearing life. - • **Engineered for Endurance:** Premium carbon steel ensures durability and smooth, low-noise operation under heavy loads. ## Overview The Chiloskit 20pcs V Deep Groove Ball Bearings Pulley set features 624ZZ high carbon steel bearings with double metal shields for enhanced durability and low friction. Sized precisely at 4x13x6mm, these bearings deliver smooth, quiet operation ideal for micro pulley systems in 3D printing, medical equipment, and small motors. Engineered for longevity and efficiency, they ensure reliable performance in demanding mechanical environments. ## Description Chiloskit 20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm: desertcart.com: Industrial & Scientific ## Features - HIGH PRECISION BALL BEARINGS: Engineered with premium carbon steel, these 624zz bearings deliver exceptional durability and resistance to deformity under heavy loads. The high-quality material ensures a smooth, low-noise operation, making them the perfect small bearings for demanding mechanical environments. - DOUBLE METAL SHIELDED DESIGN: Featuring robust shields on both sides, our 624ZZ bearing effectively keeps lubricant in while preventing dust, dirt, and contaminants from entering. This protective design significantly reduces friction and extends the lifespan of your mini pulley or machinery. - OPTIMIZED FOR LOW FRICTION: Designed for high-speed performance, these small pulley bearings offer a low friction coefficient that minimizes energy loss. Whether used as ball bearing rollers or in high-speed applications, they provide consistent, efficient rotation with minimal maintenance required. - VERSATILE MULTI-SCENARIO APPLICATION: These micro pulley bearings are universally compatible with a wide range of projects. They are highly recommended as 624ZZ bearings for 3d printing, small motors, power tools, medical equipment, office equipment, model toys, and automotive auxiliary devices. - EXACT DIMENSIONS FOR PERFECT FIT:Manufactured to strict ABEC tolerance standards, each 624ZZ ball bearing measures precisely.Dimension:(Inside diameter)4mm x (outer diameter)13mm x (thickness)6mm.Material:High carbon steel.V groove width: 4mm.V groove deepness: 1.5mm.Please note the size befor you buy it dear customer ！ ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B012KKTBRU | | Bearing Number | 624 | | Bearing Type | Ball Bearing | | Best Sellers Rank | #159,658 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #951 in Deep-Groove Ball Bearings | | Brand Name | Chiloskit | | Compatible Lubricant | Grease | | Customer Reviews | 4.3 4.3 out of 5 stars (333) | | Item Dimensions | 0.51 x 0.51 x 0.24 inches | | Item Thickness | 6 millimeters | | Item Weight | 10 g | | Manufacturer | Preamer | | Material Type | High Carbon Steel | | Model | V624ZZ | | Outside Diameter | 13 millimeters | | Part Number | V624ZZ | | UPC | 710185353111 | | Unit Count | 20 Count | ## Product Details - **Bearing Number:** 624 - **Brand:** Chiloskit - **Item Weight:** 10 g - **Item dimensions L x W x H:** 0.51 x 0.51 x 0.24 inches - **Material:** High Carbon Steel ## Images ![20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm - Image 1](https://m.media-amazon.com/images/I/71v2cVxZsVL.jpg) ![20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm - Image 2](https://m.media-amazon.com/images/I/71xIg-r-E3L.jpg) ![20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm - Image 3](https://m.media-amazon.com/images/I/71NcRhHpXEL.jpg) ![20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm - Image 4](https://m.media-amazon.com/images/I/81VPTmJ+cDL.jpg) ![20pcs V Deep Groove Ball Bearings Pulley, Mini Bearings Deep V Groove Guide Pulley Rail Ball Bearings Wheel for Micro Pulley Systems,4x13x6mm - Image 5](https://m.media-amazon.com/images/I/71IxSOvV3oL.jpg) ## Questions & Answers **Q: What are the measurements in inches.** A: According to Amazon: inside diameter and V groove width = 4mm = 0.1575 inch, outside diameter = 13mm = 0.5119 inch, groove deepnes = 1.5mm = 0.05905 inch. I use them to guide curtain cord. **Q: Does it rust?** A: I haven't seen any rust as of yet. The device I built that uses them is in my garage so doesn't get direct water on it, but it does get pretty humid. **Q: Is the hole diameter 5/32? Or is it the 6mm?** A: 4mm for hole, 6mm is the width **Q: Do these pulleys come with the pins?** A: Pins? No pins, just the pulleys. ## Frequently Bought Together - Chiloskit 20pcs 1.5mm Deep Metal V Groove Guide Pulley Bearing Wheel Rail Ball Bearings Wheel 4x13x6mm - Saipe 2PCS GT2 Timing Pulley Synchronous Wheel Aluminum Alloy Timing Belt Pulley 3D Printer Accessories for 6mm Width Timing Belt (30 Teeth Bore 5mm) - 3Dman GT2 20 Toothless Bore 5mm Aluminum Timing Belt Idler Pulley for 6mm Width 3D Printers (10pcs) --- ## 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.jp/products/20782485-20pcs-v-deep-groove-ball-bearings-pulley-mini-bearings-deep](https://www.desertcart.jp/products/20782485-20pcs-v-deep-groove-ball-bearings-pulley-mini-bearings-deep) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-03*