{"product_id":"cf3-cf30-kr10-kr90-cam-follower-needle-roller-bearings","title":"CF3-CF30-KR10-KR90 Bearing Steel Cam Follower Bolt-type Needle Roller Bearings","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eCF3–CF30 Cam Follower Needle Roller Bearings — Bolt-Type Precision for Demanding Motion Systems\u003c\/h2\u003e\n    \u003cp\u003eWhen a cam, guide rail, or linear track demands a rolling element that can handle both radial loads and axial guidance simultaneously, standard bearings fall short. Engineers, machine builders, and maintenance professionals working on automation equipment, conveyor systems, and cam-driven mechanisms need a bolt-type cam follower they can rely on across a wide size range. These CF3–CF30 (KR10–KR90) needle roller bearings are designed to meet exactly that need — available in 18 model sizes from CF3 to CF30, with outer diameters ranging from 10 mm (0.39 in) to 90 mm (3.54 in).\u003c\/p\u003e\n    \u003cp\u003eEach cam follower is constructed from bearing steel, offering a balance of hardness and toughness suited to rolling contact applications. The bolt-type (stud) design integrates a threaded stud for direct mounting without a separate housing. Outer ring diameters span 10–90 mm (0.39–3.54 in); stud thread sizes and lengths vary by model — see variant options for exact per-model dimensions. Available in single-piece quantities or multi-packs of 3 or 5 for maintenance stock or multi-axis builds.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include cam follower applications on indexing tables and rotary cams, linear guide rail systems where the outer ring rolls directly on a track, conveyor and material handling equipment requiring compact rolling support, and industrial automation machinery with reciprocating or oscillating motion paths — all scenarios where a compact, self-contained needle roller cam follower reduces design complexity and assembly time.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for cam follower and track roller applications. Model number (CF3–CF30) corresponds to stud diameter; KR designation (KR10–KR90) indicates outer ring diameter. Verify your required stud thread size, outer diameter, and load rating against your application specs before ordering.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These Cam Follower Needle Roller Bearings\u003c\/h2\u003e\n    \u003cul class=\"hdiy-list\"\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eWide Size Range:\u003c\/strong\u003e 18 models from CF3 (KR10, OD 10 mm \/ 0.39 in) to CF30 (KR90, OD 90 mm \/ 3.54 in) — one product family covers a broad spectrum of machine sizes and load requirements.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cstrong\u003eBolt-Type Stud Design:\u003c\/strong\u003e Integrated threaded stud allows direct mounting into tapped holes or with a nut, eliminating the need for a separate bearing housing and simplifying installation in tight spaces.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eBearing Steel Construction:\u003c\/strong\u003e Made from bearing-grade steel for the hardness and fatigue resistance required in rolling contact under radial and combined loads.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eNeedle Roller Inner Assembly:\u003c\/strong\u003e The needle roller complement provides a high load capacity relative to the compact cross-section, making these suitable for space-constrained cam and track applications.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eFlexible Quantity Options:\u003c\/strong\u003e Order as single units (1 pc), value packs of 3, or packs of 5 — ideal for prototyping, maintenance kits, or multi-axis machine builds.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cstrong\u003eBroad Application Fit:\u003c\/strong\u003e Suited for cam mechanisms, linear guide tracks, conveyor systems, indexing tables, and general industrial automation where a self-contained rolling follower is required.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📐 Technical Specifications — Cam Follower Needle Roller Bearings\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eModel Range\u003c\/th\u003e\n\u003ctd\u003eCF3 to CF30\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eKR Designation Range\u003c\/th\u003e\n\u003ctd\u003eKR10 to KR90\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOuter Diameter Range\u003c\/th\u003e\n\u003ctd\u003e10 mm – 90 mm (0.39 in – 3.54 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eBolt-type (stud-type) cam follower needle roller bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBearing steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eStud Thread Size\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eStud Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eInner Diameter\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWidth \/ Length\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eDynamic Load Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eStatic Load Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Quantities\u003c\/th\u003e\n\u003ctd\u003e1 pc, 3 pcs, 5 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right CF model for my application?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe CF number (e.g., CF3, CF10, CF20) refers to the stud diameter series, while the KR number (e.g., KR10, KR22, KR52) indicates the outer ring diameter in millimeters. Match the outer diameter to your track or cam profile width, and match the stud thread to your mounting hole. Check the load ratings for your specific model against your application's radial load requirements before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is the difference between CF and CF-1 models (e.g., CF10 vs CF10-1)?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe \"-1\" suffix (e.g., CF10-1, CF12-1) typically denotes a variant with a different stud length or a crowned outer ring profile compared to the standard model. The crowned profile can improve edge load distribution on slightly misaligned tracks. Check the specific dimensional data for each variant to confirm which suits your mounting depth and alignment conditions.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these cam followers run directly on a hardened steel track or guide rail?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. Bolt-type cam followers are designed so the outer ring rolls directly on a cam surface or guide track. For best service life, the mating track surface should be hardened (typically 58–64 HRC) and ground to a smooth finish. Running on an unhardened or rough surface will accelerate wear on both the outer ring and the track.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these bearings sealed or open? Do they require lubrication?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eCam followers in this series are typically supplied with seals or shields and pre-greased for initial operation. For extended service life — especially in high-speed, high-load, or contaminated environments — periodic re-lubrication through the grease nipple (if present on the model) is recommended. Refer to the specific model's datasheet for lubrication intervals and grease type.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat load types can these needle roller cam followers handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese are primarily designed for radial loads applied through the outer ring rolling on a cam or track surface. They can also handle limited axial (thrust) loads via the guide flanges on the outer ring, depending on the model. They are not intended for pure axial load applications. Always verify the dynamic and static radial load ratings for your selected model against your application's actual load conditions.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhy should I order a 3-pack or 5-pack instead of individual pieces?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMulti-axis machines and conveyor systems often require multiple cam followers of the same model — for example, a linear guide carriage may use 4–6 followers. Ordering a 3-pack or 5-pack reduces per-unit cost and ensures you have spares on hand for maintenance without waiting for a reorder. The 5-pack option offers the best per-unit value for larger builds or maintenance stock.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I install a bolt-type cam follower correctly?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThread the stud into a tapped hole or pass it through a clearance hole and secure with a nut. Apply the specified torque to the stud nut — over-tightening can preload the bearing and reduce service life; under-tightening can allow the stud to rotate under load. Ensure the outer ring is free to rotate and makes full, even contact with the cam or track surface. Do not press or hammer the outer ring during installation.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your model (CF size) and quantity above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right CF model for my application?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The CF number refers to the stud diameter series, while the KR number indicates the outer ring diameter in millimeters. Match the outer diameter to your track or cam profile width, and match the stud thread to your mounting hole. Check the load ratings for your specific model against your application's radial load requirements before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is the difference between CF and CF-1 models (e.g., CF10 vs CF10-1)?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The -1 suffix typically denotes a variant with a different stud length or a crowned outer ring profile. The crowned profile can improve edge load distribution on slightly misaligned tracks. Check the specific dimensional data for each variant to confirm which suits your mounting depth and alignment conditions.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these cam followers run directly on a hardened steel track or guide rail?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Bolt-type cam followers are designed so the outer ring rolls directly on a cam surface or guide track. For best service life, the mating track surface should be hardened (typically 58–64 HRC) and ground to a smooth finish.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these bearings sealed or open? Do they require lubrication?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Cam followers in this series are typically supplied with seals or shields and pre-greased for initial operation. For extended service life, periodic re-lubrication is recommended. Refer to the specific model's datasheet for lubrication intervals and grease type.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What load types can these needle roller cam followers handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These are primarily designed for radial loads applied through the outer ring rolling on a cam or track surface. They can also handle limited axial loads via the guide flanges, depending on the model. Always verify the dynamic and static radial load ratings for your selected model.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Why should I order a 3-pack or 5-pack instead of individual pieces?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Multi-axis machines and conveyor systems often require multiple cam followers of the same model. Ordering a 3-pack or 5-pack reduces per-unit cost and ensures you have spares on hand for maintenance without waiting for a reorder.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I install a bolt-type cam follower correctly?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Thread the stud into a tapped hole or pass it through a clearance hole and secure with a nut. Apply the specified torque — over-tightening can preload the bearing and reduce service life. Ensure the outer ring is free to rotate and makes full, even contact with the cam or track surface.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"CF3 { KR10 } \/ 1","offer_id":52448915980562,"sku":"LXDLIIIIU7651x1","price":4.96,"currency_code":"USD","in_stock":true},{"title":"CF4 { KR12} \/ 1","offer_id":52448916013330,"sku":"LXDLIIIIU7652x1","price":4.42,"currency_code":"USD","in_stock":true},{"title":"CF5 { KR13 } \/ 1","offer_id":52448916046098,"sku":"LXDLIIIIU7653x1","price":3.93,"currency_code":"USD","in_stock":true},{"title":"CF6 { KR16 } \/ 1","offer_id":52448916078866,"sku":"LXDLIIIIU7654x1","price":4.07,"currency_code":"USD","in_stock":true},{"title":"CF8 { KR19 } \/ 1","offer_id":52448916111634,"sku":"LXDLIIIIU7655x1","price":4.96,"currency_code":"USD","in_stock":true},{"title":"CF10 { KR22 } \/ 1","offer_id":52448916144402,"sku":"LXDLIIIIU7656x1","price":6.38,"currency_code":"USD","in_stock":true},{"title":"CF10-1 { KR26 } \/ 1","offer_id":52448916177170,"sku":"LXDLIIIIU7663x1","price":7.41,"currency_code":"USD","in_stock":true},{"title":"CF12 { KR30 } \/ 1","offer_id":52448916209938,"sku":"LXDLIIIIU7657x1","price":9.51,"currency_code":"USD","in_stock":true},{"title":"CF12-1 { KR32 } \/ 1","offer_id":52448916242706,"sku":"LXDLIIIIU7664x1","price":9.91,"currency_code":"USD","in_stock":true},{"title":"CF16 { KR35 } \/ 1","offer_id":52448916275474,"sku":"LXDLIIIIU7658x1","price":16.44,"currency_code":"USD","in_stock":true},{"title":"CF18 { KR40 } \/ 1","offer_id":52448916308242,"sku":"LXDLIIIIU7659x1","price":22.83,"currency_code":"USD","in_stock":true},{"title":"CF20 { KR52 } \/ 1","offer_id":52448916341010,"sku":"LXDLIIIIU7660x1","price":34.07,"currency_code":"USD","in_stock":true},{"title":"CF20-1 { KR47 } \/ 1","offer_id":52448916373778,"sku":"LXDLIIIIU7665x1","price":38.83,"currency_code":"USD","in_stock":true},{"title":"CF24 { KR62 } \/ 1","offer_id":52448916406546,"sku":"LXDLIIIIU7661x1","price":65.48,"currency_code":"USD","in_stock":true},{"title":"CF24-1 { KR72 } \/ 1","offer_id":52448916439314,"sku":"LXDLIIIIU7666x1","price":83.35,"currency_code":"USD","in_stock":true},{"title":"CF30 { KR80 } \/ 1","offer_id":52448916472082,"sku":"LXDLIIIIU7662x1","price":123.47,"currency_code":"USD","in_stock":true},{"title":"CF30-1 { KR85 } \/ 1","offer_id":52448916504850,"sku":"LXDLIIIIU7667x1","price":141.24,"currency_code":"USD","in_stock":true},{"title":"CF30-2 { KR90 } \/ 1","offer_id":52448916537618,"sku":"LXDLIIIIU7668x1","price":152.58,"currency_code":"USD","in_stock":true},{"title":"CF3 { KR10 } \/ 3","offer_id":52448916570386,"sku":"LXDLIIIIU7651x3","price":10.4,"currency_code":"USD","in_stock":true},{"title":"CF4 { KR12} \/ 3","offer_id":52448916603154,"sku":"LXDLIIIIU7652x3","price":9.1,"currency_code":"USD","in_stock":true},{"title":"CF5 { KR13 } \/ 3","offer_id":52448916635922,"sku":"LXDLIIIIU7653x3","price":8.91,"currency_code":"USD","in_stock":true},{"title":"CF6 { KR16 } \/ 3","offer_id":52448916668690,"sku":"LXDLIIIIU7654x3","price":9.45,"currency_code":"USD","in_stock":true},{"title":"CF8 { KR19 } \/ 3","offer_id":52448916701458,"sku":"LXDLIIIIU7655x3","price":12.04,"currency_code":"USD","in_stock":true},{"title":"CF10 { KR22 } \/ 3","offer_id":52448916734226,"sku":"LXDLIIIIU7656x3","price":16.17,"currency_code":"USD","in_stock":true},{"title":"CF10-1 { KR26 } \/ 3","offer_id":52448916766994,"sku":"LXDLIIIIU7663x3","price":19.38,"currency_code":"USD","in_stock":true},{"title":"CF12 { KR30 } \/ 3","offer_id":52448916799762,"sku":"LXDLIIIIU7657x3","price":25.77,"currency_code":"USD","in_stock":true},{"title":"CF12-1 { KR32 } \/ 3","offer_id":52448916832530,"sku":"LXDLIIIIU7664x3","price":26.78,"currency_code":"USD","in_stock":true},{"title":"CF16 { KR35 } \/ 3","offer_id":52448916865298,"sku":"LXDLIIIIU7658x3","price":46.36,"currency_code":"USD","in_stock":true},{"title":"CF3 { KR10 } \/ 5","offer_id":52448916898066,"sku":"LXDLIIIIU7651x5","price":16.39,"currency_code":"USD","in_stock":true},{"title":"CF4 { KR12} \/ 5","offer_id":52448916930834,"sku":"LXDLIIIIU7652x5","price":14.27,"currency_code":"USD","in_stock":true},{"title":"CF5 { KR13 } \/ 5","offer_id":52448916963602,"sku":"LXDLIIIIU7653x5","price":13.86,"currency_code":"USD","in_stock":true},{"title":"CF6 { KR16 } \/ 5","offer_id":52448916996370,"sku":"LXDLIIIIU7654x5","price":14.76,"currency_code":"USD","in_stock":true},{"title":"CF8 { KR19 } \/ 5","offer_id":52448917029138,"sku":"LXDLIIIIU7655x5","price":19.11,"currency_code":"USD","in_stock":true},{"title":"CF10 { KR22 } \/ 5","offer_id":52448917061906,"sku":"LXDLIIIIU7656x5","price":25.91,"currency_code":"USD","in_stock":true},{"title":"CF10-1 { KR26 } \/ 5","offer_id":52448917094674,"sku":"LXDLIIIIU7663x5","price":31.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of38_92b0c747-d214-48b2-888c-1e32cb1c0153.jpg?v=1783359482","url":"https:\/\/homediyer.com\/products\/cf3-cf30-kr10-kr90-cam-follower-needle-roller-bearings","provider":"HomeDIYer","version":"1.0","type":"link"}