Iso 460 gear oil napa.
We offer a wide selection of gear oil and lubricants.
Iso 460 gear oil napa This is an extreme pressure oil for industrial gears. Edit:If you must consider an automotive gear oil due to availability and price issue , please consider a 85W140 with a KV@40*C closer to 242 cSt . Cetus® HiperSYN® Oils are formulated with premium base oil technology and a high level of purity and refinement, and has been further enhanced by their unique additive systems that provide outstanding thermal and oxidation stability, high viscosity index, high flash point, low pour point, anti-wear protection, and excellent hydrolytic stability. com 3 CHARACTERISTICS IGO 460 Specific gravity at 15 C 0. and extreme pressure additives. Gear Oil ISO VG 150, AGMA 4, SAE 40wt. 60 Original price was: $508. Add to cart Quick view. ISO Viscosity Grade. Grease should be applied to mechanical systems where oil cannot be automatically supplied. i-GlooOil INDUSTRIAL GEAR OIL ISO 460 is a specially formulated extreme pressure industrial gear oil. Shop Synthetic EP Gear Oil 460 at AMSOIL. Minimum Operating Temperature-27 °F. 900 Kinematic viscosity at 40 C, mm2/s (cSt) 460 Kinematic viscosity at 100 C, mm2/s (cSt) 31. BlueSky Cirrus Syn PG 460 is a polyglycol-based (PAG) lubricant for use in enclosed gears, bearings, and compressors where conditions demand the unique properties of this synthetic compound. Find a Distributor. Save 19%. Extreme pressure protection; Resistance to foam; Excellent rust, corrosion and oxidation protection; Packaging #11164 - ISO 150 (5 Gallon Pail) #10673 - ISO 150 (55 Gallon Drum) #10589 - ISO 220 (5 Gallon Pail) #10590 - ISO 220 (55 Gallon Drum) #10591 - ISO 320 (5 When it comes to 460 Food-Grade Gear Oils, you can count on Grainger. So, you can use them as an EP-460 oil equivalent in your heavy loads, shock loads, and high peak loads. The midpoint is derived by taking the average of both the minimum and maximum kinematic viscosities which is accounted for by the AGMA designation. Grade 460 Gear Oil | MSC Direct offers quality Gear Oil at a great value. Browse our products online, and order today! Mystik ® Power Lubricants Industrial Gear Lubricant ISO 460 U. This is close to SAE 140. Order Mobil Gear Oil, Bottle, 1 qt, SHC 634, 460, Orange, 123018 at Zoro. 00 gal Pail, ISO 460 -45°F to 450°F, ISO 460. Jul 26, 2017 · Buy Mobil 103495 Gear 600XP 460 Gear Oil Nickel: Gear Oils - Amazon. INDUSTRIAL GEAR OIL RANGE – ISO Meropa ISO 460 Technical Datasheet, Chevron GEAR OILS, INDUSTRIAL GEAR OILS 277213, 277213983, Chevron, lubricant, wholesale, Southern Counties Lubricants, SCL, supplier, bulk, drum Created Date 10/22/2018 12:46:11 PM La serie Mobil SHC Gear ISO VG 150, 220, 320, 460 y 680 está aprobada bajo la especificación de aceite para engranajes D50E35 de General Electric (GE) para su uso en aplicaciones de cajas de engranajes en ruedas motorizadas para vehículos fuera de carretera. TY26408 (ISO VG 460 fully synthetic gear lube) is specifically designed for lubricating heavy-duty gears under high load carrying capacity. NSF ISO 21469; Kosher; Halal; DIN 51517 CLP; ISO 6743-6 L-CKC; Description. Designed to excel in demanding industrial environments, Magnum IGO EP ISO 460 is an industrial gear oil featuring ISO 460 viscosity specifications. The FoodMaster range has been NSF H-1 registered and is specifically recommended where incidental food contact may occur. Buy COMPRESSOR OIL ISO 46 - LUC 10497 online from NAPA Auto Parts Stores. SAE Grade 140. It has factory fill in it (thick stuff), but I need to source the first change soon. It is specially formulated with clean gear additive technology to minimize deposit formation and provide excellent gearbox cleanliness. MOBIL Gear Oil: SHC Cibus 460, 5 gal, Pail, H1 Food Grade, 460, Amber. They are suitable for a wide range of applications in industry and mining. AVANA INDUSTRIAL GEAR OIL ISO 460 is a specially formulated extreme pressure industrial gear oil. DESCRIPTION INDUSTRIAL GEAR OIL ISO: 460 Code: 7025 Date: 10-04-2020 • DAVID BROWN TYPES M, A, E • AGMA 9005-E02 • DIN 51517 (PART 3) • ISO 12925-1 CKD • US STEEL 224 Indus Gear Oil EP oils are available in 6 grades - ISO 68, ISO 150, ISO 220, ISO 320 and ISO 460 INDUS GEAR OIL EP 460 | Penrite Oil Indus Gear Oil EP are premium mineral, extreme pressure industrial gear oils, manufactured from highly refined water white base oils and selected sulphur-phosphorus extreme pressure and anti-wear additives. As a leading member of Mobil's industrial lubricants, Mobilgear 600 XP 460 has outstanding extreme pressure characteristics and load-carrying properties, making it suitable for use in modern gearboxes which have higher power density. Synergy® is an ultra-tough, long life, gear oil with slippery, synthetic molecules, which greatly increase its lubricity and oiliness properties. Part Types. Synthetic Gear Oil ISO 460 - 54432; Synthetic Gear Oil ISO 460 - 54432. The paraffinic character of the base oil ensures an excellent course of the viscosity/temperature curve and a high resistance against oxidation and ageing. Supplies and solutions for every industry, plus easy ordering, fast delivery and 24/7 customer support. Jan 6, 2016 · Super Lube Synthetic Gear Oil ISO 150 Hydraulic Grade (Translucent Amber, 1qt Bottle) | NSF Certified Food Grade & Clean | Heavy Film Lubricates & Cushions $31. Gear Oil ISO VG 220, AGMA 5, SAE 90wt. It is Fuchs RENOLIN CLP 460 are high-performance mineral oil-based gear and circulating oils (ISO VG 460) with outstanding extreme pressure characteristics and load carrying capacity to improve corrosion protection (also combat steel and non-ferrous metal corrosion caused by moisture). Steel 224 Specification (ISO 220, 320, 460, 680) Meropa gear lubricants (ISO 68, 100, 150, 220, 320, 460) are suitable for use in Bijur oil application equipment. $41. Designed for use in all types of industrial gear boxes and can also be used in sprockets, chain drives and slide guides. WHITBY, ON L1N 2C3 Gear Oil & Additive. For example, an AGMA 5 oil is equivalent to an ISO VG 220 oil, AGMA 6 to ISO VG 320, AGMA 7 to ISO VG 460, and so on. This industrial gear oil is formulated using high quality solvent refined base oils, extreme pressure additives and other performance additives to improve the base oil’s oxidation resistance, corrosion protection and demulsibility. , trading as Prolube Lubricants 15 Pinacle Street, Brendale, Queensland, 4500 Meropa XL ISO 320 Gear Oils are designed to help ensure optimal performance in today’s smaller, lighter and more energy efficient industrial gear systems. 0 Viscosity index 97 INDUSTRIAL GEAR OIL ISO: 460 Code: 7025 Date: 10-05-2016 IGO 460 is a premium quality, heavy duty industrial gear lubricant manufactured from highly refined Product Identifier INTEC INDUSTRIAL GEAR OIL ISO 460 Product Code 1204 Other Means of Identification Base Oil and Additive Mixture Recommended Use of the Chemical and Restriction on Use Industrial gear oil Details of Manufacturer or Importer Lidomont Pty. GREASE OR GEAR OIL. Gear Oil ISO VG 320, AGMA 6 Gear Oil ISO VG 460, AGMA 7 Gear Oil ISO VG 680, AGMA 8, SAE 140wt. Explore Gulf Western's ISO 460 oil, designed for heavy-duty industrial machinery requiring strong lubrication and protection. Gasoline fleets + Oil change service centers ISO 68, 100, 150, 220, 320, 460, 277212451, 400 Pound Drum - 277212983, Bulk - 277212990 SKUs: Meropa 460 • 35 This oil withstands the heavy loads found in gear boxes. ISO-460 is at the bottom of the range and ISO-680 is at the top. APPLICATION Mobil Glygoyle 460 Polyalkylene Glycol (PAG) Gear, Bearing and Compressor Lubricant. Specifications and Approvals Aug 28, 2017 · Picked up a new Polish made hay mower . e equivalent to ISO 100 industrial gear oil and it is 2 viscosity grades thinner than that of ISO 220 . This oil withstands the heavy loads found in gear boxes. 260 Degrees C Ł U. s and 414 mPa. This industrial gear oil is formulated using high quality solvent refined base oils, extreme pressure additives and otherperformance additives to improve the base oil’s oxidation resistance, corrosion protection and demulsibility. 00 Regular price $925. Steel 224 Specification (ISO 220, 320, 460, 680) Meropa gear lubricants (ISO 68, 100, 150, 220, 320, 460) are suitable for use in Bijur oil application NAPA Auto Parts NAPA Whitby. Super Lube® Synthetic Gear Oil: 5. . Due to its anti-friction characteristics, this gear lube also withstands high thermal loading and resists the formation of sludge and other harmful products of oxidation. They protect gears and extend their operating life in operating temperatures of 300°F or greater, and with heavy loads and pressures where standard gear oils may degrade and squeeze out. It is clean translucent oil with ISO VG 460 oil has a midpoint kinematic viscosity of 460 cSt (centistokes). Due to its anti-friction characteristics, this gear lube also withstands high thermal loading and resists the formation of sludge and other Mobil Glygoyle™ 460 is a superior performance gear, bearing and compressor oils designed to provide outstanding benefits in terms of efficiency, long oil life, and equipment protection. Meropa Aqua Gear EP is available in viscosity grades ISO 220, 320, and 460. ENDURATEX™ Synthetic EP gear oils can be used where AGMA antiscuff/antiwear Extreme Pressure (EP) Gear lubricants are required. Dec 3, 2022 · The equivalent of 460 is Chevron Meropa 460, Mobilgear 600 XP 460, Shell Omala S2 GX 460, and Sunoco 460. The high pressure additives based on sulfur and phosphorus compounds form a The AGMA grade is a numeric rating that correlates directly with gear oil viscosity grades. Copper Strip Corrosion, 24 h, 100 C, Rating, ASTM D130 MOBIL GLYGOYLE 460 100% SYNTHETIC, ISO-460, POLY ALKYLENE GYCOL, INDUSTIAL GEAR AND BEARING CIRCULATING LUBRICANT – 20 LITER PAIL $ 508. Los aditivos de alta presión Meropa Ultra Gear Lubricant ISO 320 are premium grade, industrial gear lubricants. ENDURATEX™ Synthetic EP gear oils (ISO 150, 220, 320 and 460) are listed on Flender Gear Units and Geared Motors T7300 Approved Lubricants List and are suitable for use in GE787/GE788 drive systems. 101E • AGMA 250. Get deals on automotive parts, truck parts and more. Choose the right product for your car on the NAPA website or look for it at your nearest NAPA Auto Parts store. These fluids deliver outstanding protection against micropitting, abrasion and wear. Buy Sta-Lube® API/GL-4 Multi-Purpose Gear Oil SAE 140, 1 Ga - SL SL24238 online from NAPA Auto Parts Stores. I can't find much, but am thinking that an ISO 460 oil is what I need? Something like this Swepco 201 SAE Grade 140 Transmission Gear Oil ISO 460 Grade 1 Gallon Bottle for offroad racing in the King of the Hammers, New Zealand Taupo 1000, Dakar Rally, Tatts Finke Desert Race, Score International Baja 500 or Baja 1000, Mint 400, Vegas to Reno, Silk Way Rally, Crandon International, East African Safari Rally, Rallye Aicha des Gazelles, Formula Off Road, Formula SAE, RFC Rainforest Mobilgear 600 XP 460 is an ISO VG 460 extra high performance gear oil designed for use in enclosed gear drives with circulation or splash lubrication systems. Specifications and Approvals Choose from our selection of ISO 46 oil, including gear oil, penetrating lubricants, and more. Title: 10_Industrial Gear Oil_ISO 460 Created Date: 2/23/2015 2:59:09 PM FG CHAIN & GEAR OIL ISO 460 is a fully synthetic MOSH and MOAH Free food grade gear oil particularly suited for the lubrication of drive chains, conveyor chains, gearboxes and reduction units. At room temperature it was very similar to pouring molasses. Part Mobil SHC Gear ISO 460 Gear Oil, 18 L - ESS 121328: Available online or at your local NAPA Auto Parts store. DELTA Industrial Gear Oil ISO 460 is a modern multi-use lubricant for the widest range of industrial gearing. pressure gear oil. The LUBRIPLATE SFGO Ultra Series may be recommended for bearings, gearboxes, pumps and chains requiring ISO Viscosity Grades 100 through 1000. The advanced formulation is balanced to provide extreme pressure protection, while providing protection against yellow metal corrosion. 57 Current price is: $426. Shop and all other products available now on NAPAonline and for pickup at your local NAPA Auto Parts store! Sep 19, 2020 · IF the original 600W oil was indeed the ISO 680 available today, and I have no documentation to say that it is, then that is equivalent to SAE 190 Gear Oil. 95 ($1. Meropa Aqua Gear EP oils meet the specifications of: • Joy TO-MEP (ISO 220), TO-HEP (ISO 320) and TO-HD (ISO 460) PRODUCTS chevronlubricants. com. ISO VG 460 oil has a midpoint kinematic viscosity of 460 cSt (centistokes). May 17, 2003 · Lubriplate SPO-277 is another gear oil that is red metal compatible and is an ISO-460. An SAE 140 is heavier than 50W oil. These applications often require oils with higher viscosity to provide sufficient lubrication and protection under heavy loads, high temperatures, and extreme operating conditions. It is clean translucent oil with BlueSky Cirrus Syn PG ISO 460 Synthetic Polyglycol Gear Oil. Base Oil Synthetic. Categories. Sep 19, 2020 · IF the original 600W oil was indeed the ISO 680 available today, and I have no documentation to say that it is, then that is equivalent to SAE 190 Gear Oil. . Key Benefits. Viscosity is the thickness of an oil. gearbox calls for Transol SPVG 320, 460 or E400. Same and Next Day Delivery. Find the right oil for your installer; Gear Oil ISO VG 680, 460, 320, 220, 150,100; Mobilgear 600 XP 460 : Gear Oil, ISO Viscosity Grade 460, SAE Grade 140, Base Oil Synthetic, Container Size 1 qt. As ISO VG 460 oil has a midpoint kinematic viscosity of 460 cSt (centistokes). The LUBRIPLATE SFGO Ultra Lubricants are compatible with other LUBRIPLATE products such as the LUBRIPLATE FMO-AW Series and LUBRIPLATE SPO Series. Aceite de extrema presión para engranajes industriales. Las propiedades beneficiosas del aceites de base natural se intensifican todavía más mediante la adición de los aditivos apropiados. DESCRIPTION INDUSTRIAL GEAR OIL ISO: 460 Code: 7025 Date: 11-09-2019 • DAVID BROWN S1. 00/Ounce) Get it as soon as Tuesday, Mar 11 Shop all Gear Oil & Additive and Gear Oils & Additives products available now on NAPAonline and for pickup at your local NAPA Auto Parts store! Shop Gear Oils & Additives and all other Greases, Gear Oils & Hydraulic Fluids products available now on NAPAonline and for pickup at your local NAPA Auto Parts store! U. The higher the grade, the thicker the oil, and the less it flows. The high pressure additives based on sulfur and phosphorus compounds form a John Deere HD460 Synthetic Gear Lube TY26408This is a one quart container. It can also be used in gearboxes of other mining and construction equipment operating in wet environments. ISO Grade 460. 1200 1. Ltd. Its low pour point ensures and extreme pressure additives. Based on clean gear sulphur phosphorus EP additives to give minimum gear wear, maximum load carrying capacity, corrosion protection, and outstanding resistance to high-temperature sludging. 9L - ASF 189EP460SF: Available online or at your local NAPA Auto Parts store. Product Description. A ventilated environment is recommended during use. com FREE DELIVERY possible on eligible purchases Super Lube Synthetic Gear Oil ISO 220 FoodMaster (FM) Synthetic Gear Oils are premium-performance lubricants made from Polyalphaolefin (PAO) base stocks and proprietary additive blends. Basically, all of this equivalent is a premium quality high-pressure industrial gear oil. Skip to Content 100-1500 HOPKINS ST Buy NAPA Synthetic Gear Oil 75W140 12/1 QT - NOL 891382 online from NAPA Auto Parts Stores. Mobil SHC Gear Series ISO VG 150, 220, 320, 460 and 680 are approved under General Electric's (GE) gear oil specification D50E35 for use in off-highway vehicle motorized wheel gearbox applications. 46 Qty: Buy Now. It'd be REALLY nice if it didnt. 100-1500 HOPKINS ST. LUBRIPLATE SYN LUBE SERIES ISO VG 150 - 1000 fluids are excellent gear and bearing lubricants for use under severe conditions such as extremely high or low temperatures. Most gear lubes will substitute as a GL-1, but are not rated LUBRIPLATE SYN LUBE SERIES ISO VG 150 - 1000 fluids are available in (6) ISO Viscosity Grades (ISO VG 150, 220, 320, 460, 680, 1000). Mineral oil is derived from petroleum and is usually more economical than synthetic oil. Our Mobilgear™ 600 XP Series advanced technology lubricants are designed to protect gears, bearings and seals in all types of enclosed-gear drives with circulation or splash lubrication systems. thanks, Ryan Phillips 66 Extra Duty Gear Oil 680, AGMA 8 EP is a premium quality, heavy-duty, extreme-pressure (EP) industrial gear oil developed for the lubrication of heavily loaded enclosed gear drives operating under moderate to severe service conditions. Choose from our selection of mobilgear 600 XP 460 oil, including gear oil, penetrating lubricants, and more. Identification Product identifier Product name Synthetic Extreme Pressure Gear Oil ISO-460, Synthetic Extreme Pressure Gear Oil ISO-680 Product number SGO, SGP In the case of ISO 460, the number "460" indicates the kinematic viscosity of the oil at 40°C in centistokes (cSt). You also may see the letters S or EP appended to the AGMA grade. On the bottle it says fine for use in both conventional and LSD differentials. Mobil Glygoyle 460 industrial lubricant is a superior performance gear, bearing and compressor oil designed to provide outstanding benefits in terms of efficiency, long oil life, and equipment protection. This oil provides robust protection, ensuring optimal gear performance and extended equipment life. 460 Food-Grade Gear Oils - Grainger Industrial Supply Buy Valvoline AGMA EP5/ISO 220 Gear Oil - 5 gal - VAL 70016 online from NAPA Auto Parts Stores. Meropa gear lubricants have a typical sulfurphosphorus odor characteristic of industrial gear oils. Sale price $749. We offer a wide selection of gear oil and lubricants. Features and benefits: Gear Oil Mobilgear™ 600 XP Series oils are formulated to help you stay ahead of the changing needs of gearbox technology. ISO 9001/14001Registered. , Lubricant NSF Rating Not Rated, Max. (just in case). Meropa Ultra Gear Lubricant ISO 320 are premium grade, industrial gear lubricants. 57. Greases contain thickening agents to make them semi-solid. We would like to show you a description here but the site won’t allow us. 60. Certifications; Technical Resources Jun 5, 2006 · Hi guys, two questions for ya. Mobil 600W™ Cylinder Oil, Mobil 600W™ Super Cylinder Oil and Mobil™ Extra Hecla Super Cylinder Oil are additized to enhance their frictional and load-carrying properties. All four members of the product family are widely used in worm gear applications, couplings and bearings, with viscosity grade depending on operating conditions. Super lube synthetic gear oils are a premium quality, extreme pressure gear oils with excellent load carrying capacity. Who makes gear oil for NAPA, and is it completely LSD compatible. 95 $ 31 . Nye Synthetic Oil 438 also fits your requirements plus is radiation resistant. Chevron Meropa ISO 460 Gear Replacement Oil by RDT - 55 Gallon Drum. ISO VG 680. MOBIL Gear Oil: Glygoyle 460, 5 gal, Pail, H1 Food Grade, 460, Amber. Chevron Cylinder Oil W 460 is recommended for lubrication of compressor cylinders and sliding worm gear surfaces in worm drive gear cases for excellent metal wettability, delivering a protective oil film for maximum protection. Find Synthetic Extreme Pressure Gear Oil ISO-460, Synthetic Extreme Pressure Gear Oil ISO-680 According to Appendix D, OSHA Hazard Communication Standard 29 CFR §1910. -25° to 460° Yellow These gear oils prevent wear on gear teeth by maintaining a lubricating layer between surfaces in high-temperature and extreme-pressure (EP) systems. GEAR OIL ISO 460. 460 Jun 12, 2004 · We used ISO 460 gear oil at work for a slow speed reciprocating pump gear box. Cetus HiPerSYN Oils also protect against the . Great prices & free shipping on orders over $50 when you sign in or sign up for an account. They deliver unsurpassed extreme pressure and anti-wear performance and provide outstanding thermal stability. They have outstanding thermal stability and provide excellent protection against corrosion. Pack Size 1 qt. The LUBRIPLATE PGO Gear Oils may be recommended for helical, bevel helical, planetary and worm gear reducers. April Super Flo Ep 460 Extreme Pressure Gear Oil, 18. BROWSE CATALOG. Minimum Operating Temperature 13 °F. S. Synergy® is Royal Purple's best-selling EP gear oil and is designed to smoothly lubricate gears under virtually all conditions. RENOLIN CLP products offer excellent demulsifying properties to be used in all types of enclosed gear drives with circulation/splash lubrication Mobil Glygoyle 460 gear oil reduces micropitting | Mobil™ ISO VG 460. 00. There is also a modern version of 600W that is ISO 460. Oct 28, 2013 · The MOBIL SHC 634 Synthetic Gear & Bearing Oil is a supreme performance oil that is designed to provide great service, well beyond the capability of mineral oils. Find premium synthetic oil, filters and more online. The MOBIL SHC 634 oil provides: Equipment protection, Oil Life, and Problem-free operation enabling increased customer productivity. 53. 04 • DIN 51 517 (PART 3) • ISO 12925-1 CKC • ISO 6743-6 CKC Mobil SHC™ 600 Series lubricants are exceptional performance gear and bearing oils designed to provide outstanding service in terms of equipment protection, oil life and problem-free operation helping to enable increased customer productivity. Shop Super Lube Synthetic gear oil 32 Ounce(s) ISO 460 gear oil in the Hardware Lubricants department at Lowe's. Buy GEAR OIL ISO 460 - LUC 10806 online from NAPA Auto Parts Stores. El carácter parafínico del aceite de base garantiza un excelente trazado de la curva velocidad/temperatura y una alta resistencia a la oxidación y al envejecimiento. Meropa Ultra Gear Lubricants 320 are formulated with a unique extreme pressure additive using an inorganic borate compound and help provide outstanding protection against oxidation, corrosion, and rust protection. The favorable property of mineral base oil is further strenghtenend by the addition of appropriate additives. Buy Valvoline Quality Anti-Wear ISO 46 Hydraulic Oil - 5 gal - VAL 770 online from NAPA Auto Parts Stores. Jan 13, 2013 · No, you can't use automotive SAE 75W90 whose KV@40*C is typically 100 - 105 cSt , i. ISO VG 1000. FG CHAIN & GEAR OIL ISO 460 contains special additives that extend relubrication intervals. S, respectively. The main difference between grease and gear oil is the thickener. POPULAR SUB-CATEGORIES ISO VG 100, AGMA 3, SAE 30wt. Synthetic oil lasts longer than mineral oil and withstands a wider range of temperatures. Operating Temp. Just not sure if it needs additive. The maximum and minimum kinematic viscosity of an AGMA 7 oil is 506 mPa. Replaces previous part number TY6370. FM GEAR OIL 220 and 460 are anti-wear fluids designed for the lubrication of enclosed gears in the food and beverage processing and packaging industry. kohler 7000 26hp Napa Lucas Industrial Gear Oil is designed to whithstand heavy loads. Syntegra Gear Oils are fully synthetic industrial gear oils that are blended from the highest quality synthetic base oils together with the finest gear oil additives. This fully synthetic, polyalkylene glycol (PAG) lubricant was developed for use under operating conditions beyond the capabilities of other synthetic lubricants and mineral oils. Fast, free shipping available. $ 426. FUCHS RENOLIN CLP 460 Industrial Gear Oil is a heavy duty industrial gear oil with outstanding extreme pressure characteristics (EP/AW properties), extremely high load carrying capacity, high oxidation resistance, and high anti-wear performance. fbgktwqxuyxipklfzabpcuzdwwcktzshftanvbnwmnafbyvcsmljyirdcyvlgxaqwpwsikplqpuazbgwkrjhvbr