{"title":"Inner Diameter - 21mm","description":"\u003ch1\u003e21mm\u003c\/h1\u003e\u003ch2\u003e21mm Online shopping\u003c\/h2\u003e","products":[{"product_id":"kt212610-needle-bearing-cage-21x26x10mm-k212610","title":"KT212610 - Needle Roller Bearing Cage - 21x26x10mm K212610","description":"\u003cp\u003eKT212610 Needle Roller Cage Bearing - Compact High-Load Design\u003cbr\u003e✔️ 21mm x 26mm x 10mm - Needle Cage for Radial Load Support\u003c\/p\u003e\n\u003cp\u003eThe KT212610 is a precision needle roller cage bearing designed for high radial loads in space-restricted applications. Its cage-guided needle rollers offer low-friction performance and even load distribution, making it ideal for gearboxes, transmissions, and other compact mechanical assemblies.\u003c\/p\u003e\n\u003cp\u003e✅ Size: 21mm ID x 26mm OD x 10mm width\u003cbr\u003e✅ Type: Needle roller cage bearing (K-type)\u003cbr\u003e✅ Design: Cage-guided, no inner or outer ring\u003cbr\u003e✅ Dynamic load rating Cr: 11,000 N\u003cbr\u003e✅ Static load rating Cor: 9,090 N\u003cbr\u003e✅ Application: Gear trains, planetary gears, compact power systems\u003cbr\u003e✅ Quantity: 1 bearing\u003c\/p\u003e\n\u003cp\u003e💡 Why use a needle roller cage bearing without outer or inner rings?\u003cbr\u003eThis design reduces bearing wall thickness and weight while maximizing load capacity and space efficiency - ideal for integrating directly into precision-machined housings and shafts.\u003c\/p\u003e\n\u003cp\u003eEngineered for precision fit and high radial performance in ultra-compact designs.\u003cbr\u003e\u003c\/p\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":43579741274347,"sku":"KT212610","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/kt212610-needle-bearing-cage-21x26x10mm-k212610-vxb-ball-bearings-1-32679944126699.jpg?v=1773285648"},{"product_id":"kt212611-needle-bearing-cage-21x26x11mm-k212611","title":"KT212611 - Needle Roller Bearing Cage - 21x26x11mm K212611","description":"\u003cp\u003eKT212611 Needle Roller Cage Bearing - Compact \u0026amp; High-Capacity\u003cbr\u003e✔️ 21mm x 26mm x 11mm - Cage-Guided, Space-Efficient\u003c\/p\u003e\n\u003cp\u003eThe KT212611 is a needle roller cage bearing engineered for radial load support in tight mechanical spaces. With an 11mm width, it offers greater load distribution compared to shorter variants. Ideal for use in transmissions, gearboxes, and compact power systems, it delivers smooth, efficient performance with low friction and high durability.\u003c\/p\u003e\n\u003cp\u003e✅ Size: 21mm ID x 26mm OD x 11mm width\u003cbr\u003e✅ Type: Needle roller cage bearing (K-type)\u003cbr\u003e✅ Design: Full cage - no inner or outer rings\u003cbr\u003e✅ Dynamic load rating Cr: 11,500 N\u003cbr\u003e✅ Static load rating Cor: 9,390 N\u003cbr\u003e✅ Application: Gear trains, planetary stages, space-restricted systems\u003cbr\u003e✅ Quantity: 1 bearing\u003c\/p\u003e\n\u003cp\u003e💡 What benefits does increasing needle cage width provide in high-load assemblies?\u003cbr\u003eA wider needle cage distributes load across a greater contact area, reducing surface stress and extending service life - crucial for high-torque, compact assemblies running under continuous radial forces.\u003c\/p\u003e\n\u003cp\u003eOptimized for tight spaces and heavy loads - your go-to for efficient motion in demanding systems.\u003cbr\u003e\u003c\/p\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":43579741372651,"sku":"KT212611","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/kt212611-needle-bearing-cage-21x26x11mm-k212611-vxb-ball-bearings-1-32679944093931.jpg?v=1773285639"},{"product_id":"gs81104-cylindrical-roller-thrust-washer-21x3","title":"Improve bearing life and reliability with a high-precision 21x35x2.75mm cylindrical roller washer, an outer ring that ensures perfect alignment, reduces wear, and supports smooth, durable operation in compact industrial machinery","description":"\u003cdiv\u003eCylindrical Roller Thrust Washer 21x35x2.75mm, 1 pc\u003cbr\u003e\n✔️ Inner 21mm ID, outer 35mm OD, width 2.75mm; 1 pc \u003cp\u003eThis cylindrical roller washer functions as the outer ring in cylindrical roller bearing assemblies, helping maintain proper axial spacing and load distribution. It is commonly used in gearboxes, conveyors, and linear motion setups where precise shaft alignment is essential.\u003c\/p\u003e ✅ Inner diameter: 21 mm\u003cbr\u003e\n✅ Outer diameter: 35 mm\u003cbr\u003e\n✅ Width: 2.75 mm\u003cbr\u003e\n✅ Quantity: 1\u003cbr\u003e\n✅ Dynamic load rating Cr: 25000 N\u003cbr\u003e\n✅ Static load rating Cor: 53000 N\u003cbr\u003e\n✅ Limiting speed: 10800 1\/min\u003cbr\u003e \u003cp\u003e💡 What is a cylindrical roller washer used for in bearing assemblies?\u003c\/p\u003e\n\u003cp\u003eThis handy outer ring helps set precise shaft spacing and supports load transfer in rolling element bearings.\u003c\/p\u003e\n- axial spacing control\n- load transfer in conveyors and gear drives\n- quick replacement during maintenance\n- compatible with standard cylindrical roller bearings\u003c\/div\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":43580104016107,"sku":"GS81104","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/1_7d47bbf4-5a09-44c6-bf1a-98ab3919da2a.jpg?v=1770445549"},{"product_id":"nk2120-needle-roller-bearing-21x29x20mm","title":"NK21\/20 Needle Roller Bearing 21x29x20mm - Machined Type","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr align=\"middle\"\u003e\u003ctd align=\"center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003eNK21\/20 Needle Roller Bearing\u003cbr\u003ewithout inner ring\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\n\u003cp align=\"justify\"\u003e\u003cfont face=\"tahoma\"\u003eMachined type needle roller bearing NK21\/20 without inner ring. The inner diameter is 21mm, the outer diameter is 29mm, width is 20mm.\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eNK21\/20 Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eNeedle Roller Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eDimensions: 21mm x 29mm x 20mm\/Metric\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eSize: 21mm x 29mm x 20mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuantity: 1 Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e OldFormat","brand":"VXB","offers":[{"title":"Default Title","offer_id":43580535996651,"sku":"NK21-20","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/1_9c2cd053-ee80-48a5-8dc9-0a88974f5ae8.jpg?v=1770445896"},{"product_id":"taf212920-needle-roller-bearing-21x29x20mm","title":"TAF212920 Needle Roller Bearing 21x29x20mm - Machined Type","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr align=\"middle\"\u003e\u003ctd align=\"center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003eTAF212920 Needle Roller Bearing\u003cbr\u003ewithout inner ring\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\n\u003cp align=\"justify\"\u003e\u003cfont face=\"tahoma\"\u003eMachined type needle roller bearing TAF212920 without inner ring. The inner diameter is 21mm, the outer diameter is 29mm, width is 20mm.\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eTAF212920 Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eNeedle Roller Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eDimensions: 21mm x 29mm x 20mm\/Metric\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eSize: 21mm x 29mm x 20mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuantity: 1 Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e OldFormat","brand":"VXB","offers":[{"title":"Default Title","offer_id":43580561981675,"sku":"TAF212920","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/taf212920-needle-roller-bearing-21x29x20-vxb-ball-bearings-32680255652075.jpg?v=1770445890"},{"product_id":"nk2120a-needle-roller-bearing-21x29x20mm","title":"NK21\/20A Needle Roller Bearing 21x29x20mm - Machined Type","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr align=\"middle\"\u003e\u003ctd align=\"center\"\u003e\u003cfont face=\"Tahoma\" size=\"5\"\u003eNK21\/20A Needle Roller Bearing Without Inner Ring\u003cbr\u003e 21mm x 29mm x 20mm\u003cbr\u003eVXB Bearing\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd align=\"center\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\n\u003cp align=\"justify\"\u003e\u003cfont face=\"tahoma\"\u003eNK21\/20A Needle Roller Bearing Without Inner Ring 21x29x20mm\u003cbr\u003eMachined type needle roller bearing NK21\/20A without inner ring. \u003cbr\u003eThe inner diameter is 21mm, the outer diameter is 29mm, width is 20mm.\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eNK21\/20A Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eNeedle Roller Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eDimensions: 21mm x 29mm x 20mm\/Metric\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eSize: 21mm x 29mm x 20mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuantity: 1 Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eBrand: VXB Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e OldFormat","brand":"VXB","offers":[{"title":"Default Title","offer_id":43583429017835,"sku":"NK21-20A","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/nk2120a-needle-roller-bearing-without-inner-ring-21x29x20mm-vxb-ball-bearings-32681255764203.jpg?v=1770447040"},{"product_id":"brass-pipe-fittings-set-two-pieces-outer-diameter","title":"Brass Pipe Fittings Set Two Pieces Outer Diameter 25mm Varied Wall Thickness Inner Diameters 22mm 21mm 19mm 15mm Brass Capillary Hollow Tubing Easy To Use Brass Pipes And Fittings For Plumbing Crafting And Repair","description":"\u003cdiv\u003eBrass Capillary Tubing Set: 2-Piece, 25mm OD\u003cbr\u003e\n✔️ 2 brass tubes, OD 25mm, wall 0.2-15mm, IDs 22\/21\/19\/15mm \u003cp\u003eThis capillary hollow brass tube pair is ideal for small-diameter piping tasks, DIY copper projects, and instrumentation connections. The two tubes provide flexibility with outer diameter 25mm and selectable inner diameters 22, 21, 19, and 15mm, making it handy for precise fittings. Pack of 2.\u003c\/p\u003e \u003cp\u003e\n✅ Outer diameter: 25mm\u003cbr\u003e\n✅ Inner diameters: 22\/21\/19\/15mm\u003cbr\u003e\n✅ Wall thickness: 0.2-15mm\u003cbr\u003e\n✅ Material: brass capillary hollow tube\u003cbr\u003e\n✅ Pack size: 2 pieces\u003cbr\u003e\n\u003c\/p\u003e \u003cp\u003e💡 What is a pillow block bearing used for in machinery and DIY projects?\u003c\/p\u003e\n\u003cp\u003eIt's a handy way to support rotating shafts and keep alignment in place.\u003c\/p\u003e\n- Helps support shafts in conveyors, tools, and simple gear setups\u003cbr\u003e\n- Keeps shafts aligned and reduces wear in moving parts\u003cbr\u003e\n- Handy for quick mounting and easy maintenance in machinery\u003cbr\u003e\n- Commonly paired with sealed bearings for longevity in tough environments\u003cbr\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":47800624906475,"sku":"VXB0CJY2FQTC","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/brass-pipe-fittings-25mm-tube-set.jpg?v=1771191946"}],"url":"https:\/\/vxbtools.com\/collections\/inner-diameter-21mm.oembed","provider":"VXB Bearings","version":"1.0","type":"link"}