{"product_id":"1kg-2-8mm-catapult-slingshot-carbon-steel-ball-bearings-smooth-pull-back","title":"1KG 2-8MM CATAPULT-SLINGSHOT  CARBON STEEL BALL BEARINGS,SMOOTH PULL BACK","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003ch2 class=\"hdiy-overview\"\u003eCarbon Steel Ball Bearings for Slingshot \u0026amp; Catapult — Consistent 1KG Bulk Supply\u003c\/h2\u003e\n\u003cp\u003eWhen your slingshot or catapult misfires because of inconsistent ammo, every shot is wasted effort. Hobbyists, competitive shooters, and field sport enthusiasts who demand repeatable accuracy need ball bearings that are uniform in diameter, weight, and surface finish — not a mixed bag of rejects.\u003c\/p\u003e\n\u003cp\u003eThese carbon steel ball bearings are supplied in a 1KG bulk quantity and are available in 20 precise diameter options ranging from 2.0MM to 8.0MM (approximately 0.079\" to 0.315\"). Each ball is manufactured to tight roundness tolerances, with a smooth surface finish that reduces friction against the slingshot pouch or catapult cup for consistent release.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include slingshot target practice and competitive shooting, catapult and trebuchet loading for field sport events, and industrial or mechanical applications requiring small-diameter carbon steel spheres — such as valve seats, bearing races, or jig fixtures where a standard chrome steel ball is not required.\u003c\/p\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard slingshot pouches and catapult cups designed for 2–8mm diameter projectiles. Verify your equipment's recommended ball diameter before selecting a size.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Carbon Steel Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎯\u003c\/span\u003e \u003cstrong\u003e20 Diameter Options\u003c\/strong\u003e\n\u003cp\u003eAvailable from 2.0MM to 8.0MM in incremental steps, including half-millimeter and fractional sizes (e.g. 5.90MM, 6.90MM, 7.90MM) for precise equipment matching.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚖️\u003c\/span\u003e \u003cstrong\u003e1KG Bulk Quantity\u003c\/strong\u003e\n\u003cp\u003eEach order contains 1 kilogram of ball bearings in your chosen diameter — enough for extended practice sessions or project stock without frequent reordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003eCarbon Steel Construction\u003c\/strong\u003e\n\u003cp\u003eMade from carbon steel for a balance of hardness and toughness. Suitable for impact-loaded applications like slingshot and catapult use where consistent deformation resistance matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔵\u003c\/span\u003e \u003cstrong\u003eSmooth Surface Finish\u003c\/strong\u003e\n\u003cp\u003eEach ball is finished to a smooth surface that minimizes pouch wear and promotes a clean, repeatable release — reducing shot-to-shot variation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eTight Roundness Tolerance\u003c\/strong\u003e\n\u003cp\u003eManufactured to consistent spherical geometry so each ball tracks predictably through the air, reducing the unpredictable flight paths caused by out-of-round ammo.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🗂️\u003c\/span\u003e \u003cstrong\u003eWide Size Range for Multi-Use\u003c\/strong\u003e\n\u003cp\u003eThe 2–8MM range covers common slingshot ammo sizes as well as small industrial sphere applications — valve seats, jig fixtures, and mechanical assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e📐 Technical Specifications — Carbon Steel Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCarbon Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter Range\u003c\/th\u003e\n\u003ctd\u003e2.0MM – 8.0MM (approx. 0.079\" – 0.315\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet Weight per Order\u003c\/th\u003e\n\u003ctd\u003e1 KG (approx. 2.2 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eSmooth (ground finish)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Application\u003c\/th\u003e\n\u003ctd\u003eSlingshot, catapult, valve seats, mechanical assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eModerate (carbon steel; not stainless — keep dry for storage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per KG\u003c\/th\u003e\n\u003ctd\u003eSee variant options (varies by diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich size ball bearing should I choose for my slingshot?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe correct size depends on your slingshot's pouch width and band tension. Most flat-band slingshots perform well with 6.0MM–8.0MM balls, while lighter setups or tube-band slingshots often use 5.0MM–6.0MM. Check your slingshot manufacturer's recommended ammo diameter for best results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many ball bearings are in 1KG for each size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe count per kilogram varies significantly by diameter. As a rough guide: 2.0MM balls yield several thousand per KG, while 8.0MM balls yield approximately 200–300 per KG. Exact counts depend on manufacturing tolerances. Contact us to confirm if a specific count is critical for your application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these ball bearings rust-resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese are carbon steel, not stainless steel, so they have moderate corrosion resistance. For outdoor or humid environments, store them in a dry container and apply a light coat of oil if long-term storage is needed. For applications requiring full corrosion resistance, consider stainless steel alternatives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these for industrial or mechanical applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Carbon steel balls in the 2–8MM range are commonly used in valve seats, jig fixtures, and low-load bearing races where chrome steel is not required. Verify the hardness and tolerance requirements of your application against the specifications above, or contact us to confirm suitability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these compatible with catapult and trebuchet equipment?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These balls are suitable for catapult and trebuchet loading where a consistent, dense projectile is needed. Select a diameter that fits your equipment's cup or sling pocket. Larger diameters (6.0MM–8.0MM) are more common for catapult use due to their greater mass per ball.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I decide between 5.90MM, 5.95MM, and 6.0MM sizes?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fractional sizes exist to match equipment with tight dimensional tolerances — for example, valve seats or precision mechanical assemblies that require a specific sphere diameter within a narrow range. For slingshot use, the difference is negligible and any of the three will perform similarly. For mechanical applications, measure your seat or bore diameter and select the closest match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your SIZE above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"2.0MM","offer_id":52410655801618,"sku":"JFDC-DG-SMZC0006-0x1","price":132.98,"currency_code":"USD","in_stock":true},{"title":"2.5MM","offer_id":52410655834386,"sku":"JFDC-DG-SMZC0006-1x1","price":131.55,"currency_code":"USD","in_stock":true},{"title":"3.0MM","offer_id":52410655867154,"sku":"JFDC-DG-SMZC0006-2x1","price":127.27,"currency_code":"USD","in_stock":true},{"title":"3.5MM","offer_id":52410655899922,"sku":"JFDC-DG-SMZC0006-3x1","price":126.55,"currency_code":"USD","in_stock":true},{"title":"4.0MM","offer_id":52410655932690,"sku":"JFDC-DG-SMZC0006-4x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"4.5MM","offer_id":52410655965458,"sku":"JFDC-DG-SMZC0006-5x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"4.8MM","offer_id":52410655998226,"sku":"JFDC-DG-SMZC0006-6x1","price":127.27,"currency_code":"USD","in_stock":true},{"title":"5.0MM","offer_id":52410656030994,"sku":"JFDC-DG-SMZC0006-7x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"5.5MM","offer_id":52410656063762,"sku":"JFDC-DG-SMZC0006-8x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"5.90MM","offer_id":52410656096530,"sku":"JFDC-DG-SMZC0006-9x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"5.95MM","offer_id":52410656129298,"sku":"JFDC-DG-SMZC0006-10x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"6.0MM","offer_id":52410656162066,"sku":"JFDC-DG-SMZC0006-11x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"6.5MM","offer_id":52410656194834,"sku":"JFDC-DG-SMZC0006-12x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"6.90MM","offer_id":52410656227602,"sku":"JFDC-DG-SMZC0006-13x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"6.95MM","offer_id":52410656260370,"sku":"JFDC-DG-SMZC0006-14x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"7.0MM","offer_id":52410656293138,"sku":"JFDC-DG-SMZC0006-15x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"7.5MM","offer_id":52410656325906,"sku":"JFDC-DG-SMZC0006-16x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"7.90MM","offer_id":52410656358674,"sku":"JFDC-DG-SMZC0006-17x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"7.95MM","offer_id":52410656391442,"sku":"JFDC-DG-SMZC0006-18x1","price":125.84,"currency_code":"USD","in_stock":true},{"title":"8.0MM","offer_id":52410656424210,"sku":"JFDC-DG-SMZC0006-19x1","price":125.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of10_592a6b86-5d1f-40fe-bd85-a0cf68f32a87.jpg?v=1782193233","url":"https:\/\/homediyer.com\/de\/products\/1kg-2-8mm-catapult-slingshot-carbon-steel-ball-bearings-smooth-pull-back","provider":"HomeDIYer","version":"1.0","type":"link"}