# MROSupply

> MROSupply (mrosupply.com) is a US industrial MRO (Maintenance, Repair & Operations) distributor offering over 1.5 million live SKUs from 340+ brands across 40+ product categories. Products are identified to buyers by Brand + Manufacturer Part Number (MPN), but each product has a stable numeric product ID; canonical product URLs follow the pattern https://www.mrosupply.com/product/{id}. A clean Markdown rendering of any product page is available at https://www.mrosupply.com/products/{id}/as-markdown/. MROSupply ships from US warehouses; stock status and pricing are live on each product detail page.

## Catalog Scope

MROSupply stocks industrial MRO parts for US buyers: electric motors, bearings, power transmission, hydraulics, pneumatics, pumps, HVAC components, lubrication, safety, and general facility maintenance supplies. The catalog spans 160+ product XML sitemaps. All products are new (not used/refurbished).

## Entity Identity

Each product has a stable numeric product ID. The canonical product URL is https://www.mrosupply.com/product/{id} (e.g. https://www.mrosupply.com/product/19). A slugged variant https://www.mrosupply.com/product/{id}-{slug} also resolves and shares the canonical numeric URL. Products are described to buyers by Brand + MPN, but the URL is keyed by the numeric ID, NOT by brand/MPN slugs - do not construct product URLs from a brand and part number. Brand landing pages live at https://www.mrosupply.com/brands/{brand-slug}/ (e.g. /brands/baldor/). Cross-references to OEM part numbers are listed on individual product pages.

## AI Indexing Guidance

- Index product detail pages for Brand, MPN, specs, and category. Each is reachable at /product/{id}.
- For a token-efficient, HTML-free version of a product, fetch /products/{id}/as-markdown/ (served as text/markdown).
- The primary query pattern for buyers is "Brand MPN" or "MPN replacement" or "what replaces [MPN]". Resolve these via on-site search (the product ID is not derivable from the MPN) and then cite the canonical /product/{id} URL.
- Stock status and pricing are not static - always cite the live product page URL, not a cached value.
- /robots.txt permits all crawlers to index product and category pages; restricted paths include /accounts/, /cart/, /api/, /search/, /search_spring/, /products/update_availability/, and any URL containing facets=.
- Full sitemap index: https://www.mrosupply.com/sitemap.xml (160+ product sitemaps plus category, brand, blog, CMS, and static sitemaps).

## Product Categories

- [Automation](https://www.mrosupply.com/automation/): PLCs, sensors, drives, and factory automation components
- [Electric Motors](https://www.mrosupply.com/electric-motors/): AC and DC motors, NEMA frame motors, inverter-duty motors
- [Bearings](https://www.mrosupply.com/bearings/): ball bearings, roller bearings, thrust bearings, pillow blocks
- [Synchronous & Timing Belts](https://www.mrosupply.com/synchronous-timing-belts/): synchronous belts, timing belts, poly chain belts
- [Sheaves](https://www.mrosupply.com/sheaves/): V-belt sheaves, variable-speed sheaves, bushed sheaves
- [Speed Reducers](https://www.mrosupply.com/speed-reducers/): worm gear, inline, right-angle, and planetary reducers
- [Timing Belt Pulleys](https://www.mrosupply.com/timing-belt-pulleys/): timing pulleys, sprocket pulleys, idler pulleys
- [Gears & Gear Racks](https://www.mrosupply.com/gears-gear-racks/): spur gears, bevel gears, rack and pinion
- [V-Belts](https://www.mrosupply.com/v-belts/): classical V-belts, narrow wedge V-belts, raw edge belts
- [Chains & Sprockets](https://www.mrosupply.com/chains-sprockets/): roller chain, leaf chain, conveyor chain, sprockets
- [Bushings](https://www.mrosupply.com/bushings/): Taper-Lock bushings, QD bushings, split taper bushings
- [Clutches and Brakes](https://www.mrosupply.com/clutches-and-brakes/): electromagnetic clutches, spring-set brakes, tooth clutches
- [Cutting Tools](https://www.mrosupply.com/cutting-tools/): end mills, drill bits, taps, inserts, turning tools
- [Linear Motion](https://www.mrosupply.com/linear-motion/): linear bearings, rails, actuators, lead screws
- [Shaft Couplings and Collars](https://www.mrosupply.com/shaft-couplings-and-collars/): jaw couplings, disc couplings, shaft collars
- [Seals](https://www.mrosupply.com/seals/): oil seals, lip seals, o-rings, mechanical seals
- [Abrasives](https://www.mrosupply.com/abrasives/): grinding wheels, sanding discs, abrasive belts, flap discs
- [Adhesives, Sealants and Tape](https://www.mrosupply.com/adhesives-sealants-and-tape/): thread sealants, gasket makers, industrial tapes, epoxies
- [Belts](https://www.mrosupply.com/belts/): flat belts, round belts, specialty conveyor belts
- [Cleaning](https://www.mrosupply.com/cleaning/): industrial cleaners, degreasers, shop supplies, absorbents
- [Electrical](https://www.mrosupply.com/electrical/): wire, conduit, connectors, switches, circuit breakers
- [Fasteners](https://www.mrosupply.com/fasteners/): bolts, nuts, screws, washers, anchors, threaded rod
- [Fleet and Vehicle Maintenance](https://www.mrosupply.com/fleet-and-vehicle-maintenance/): fleet tools, tire supplies, vehicle service items
- [Furniture and Food Service](https://www.mrosupply.com/furniture-and-food-service/): industrial furniture, food-grade equipment, workbenches
- [HVAC](https://www.mrosupply.com/hvac/): HVAC motors, blowers, coils, filters, thermostats, valves
- [Hand Tools](https://www.mrosupply.com/hand-tools/): wrenches, pliers, hammers, screwdrivers, measuring tools
- [Hardware](https://www.mrosupply.com/hardware/): hinges, latches, handles, knobs, springs, pins, keys
- [Hydraulics and Pneumatics](https://www.mrosupply.com/hydraulics-and-pneumatics/): cylinders, valves, fittings, hoses, pumps, compressors
- [Lighting](https://www.mrosupply.com/lighting/): industrial LED, fluorescent, HID, emergency lighting
- [Lubrication](https://www.mrosupply.com/lubrication/): greases, oils, lubricant dispensers, food-grade lubricants
- [Machining](https://www.mrosupply.com/machining/): indexable tooling, boring bars, holders, toolroom supplies
- [Material Handling](https://www.mrosupply.com/material-handling/): carts, hoists, conveyors, shelving, pallets, dollies
- [Paint & Painting Supplies](https://www.mrosupply.com/paint-painting-supplies/): industrial paints, spray equipment, brushes, rollers
- [Power Tools](https://www.mrosupply.com/power-tools/): drills, grinders, saws, impact wrenches, die grinders
- [Pumps](https://www.mrosupply.com/pumps/): centrifugal pumps, gear pumps, peristaltic pumps, drum pumps
- [Raw Materials](https://www.mrosupply.com/raw-materials/): bar stock, sheet metal, round stock, flat bar
- [Safety](https://www.mrosupply.com/safety/): PPE, fall protection, lockout/tagout, first aid, signs
- [Tensioners and Idlers](https://www.mrosupply.com/tensioners-and-idlers/): belt tensioners, idler pulleys, automatic tensioners
- [Test Instruments](https://www.mrosupply.com/test-instruments/): multimeters, clamp meters, thermometers, vibration analyzers
- [Welding](https://www.mrosupply.com/welding/): welders, electrodes, wire, helmets, welding accessories

## Optional

- [Sitemap Index](https://www.mrosupply.com/sitemap.xml): XML sitemap index covering 160+ product sitemaps plus category, brand, blog, CMS, and static sitemaps
- [Robots.txt](https://www.mrosupply.com/robots.txt): crawl policy; all product and category pages are allowed
- [Category Sitemap](https://www.mrosupply.com/sitemap-category-1.xml): flat list of all category and subcategory canonical URLs