7/8" Classic Birch Wood Wheel — 3/16" Bore, 1/4" Thick for Model Making and Miniature Assembly The 7/8" classic birch wood wheel is crafted for detail-driven miniature builds, offering a precise 0.22" (22.2 mm) diameter, 1/4" (6.35 mm) thickness, and a 3/16" (4.76 mm) axle bore. Manufactured from kiln-dried birch and sanded for a smooth finish, it is tailored for projects requiring dependable rolling elements, such as model trains, toy car builds, small moving mechanical displays, or intricate diorama details where dimensional accuracy is critical. Key Features CNC-machined birch ensures exact dimensions and uniform roundness for smooth rolling Kiln-dried for superior structural integrity and resistance to warping or cracking in rigorous assembly Pre-sanded finish means each wheel is ready for immediate painting or staining 3/16" bore fits standard miniature axles and supports a variety of creative wheel-based mechanisms Wide selection of pack sizes optimizes supply management from hobbyist builds to high-volume production Unfinished wood is easy to customize by painting or staining for specific themes Safe, splinter-free edges accommodate fine handling and classroom use Larger 7/8" profile ideal for projects that need a more prominent, functional wheel aesthetic Specifications Material: Kiln-dried birch wood Diameter: 7/8" (0.88" or 22.23 mm) Thickness: 1/4" (0.25" or 6.35 mm) Bore/Hole Diameter: 3/16" (0.19" or 4.76 mm) Imperial Fractional Sizes: 7/8" diameter and 3/16" hole Finish: Unfinished, machine sanded smooth Roundness Tolerance: ±0.01" (±0.25 mm) Edge profile: Rounded and smooth Weight (each): Approx. 0.04 oz (1.13 g) Available pack sizes: 20, 100, 500, 1000, 10000 bulk Suggested Uses This wheel is a trusted component in wooden model train kits, small pull toys, and replacement builds for classic miniature vehicles where stability and appearance both matter. Its balanced profile suits dollhouse carts, trolleys, or functional furniture casters, while toy designers use it for kinetic marble run bases or imaginative STEM gadgets with wheeled features. For a trending approach, consider using a group of these wheels as a multi-disc mobile for ceiling decor or wall art—creating a dynamic, moving display. Its finish-ready birch is also popular for custom-branding on small promotional items or themed educational kits, providing a blank surface for laser engraving or hand-painting. Always select axles that match the precise bore for reliable performance and safe, durable assemblies. Frequently Asked Questions Will these wheels accommodate a 3/16" dowel or axle?Yes, the wheels are drilled to 3/16" (4.76 mm), aligning with standard sizes used in model and toy projects. Is the birch smooth enough for direct staining or painting?The wheels are machine sanded for a smooth, splinter-free finish and are ready for finishing upon receipt. Is the wood kiln-dried for long-term durability?Yes, kiln-dried birch helps prevent warping or cracking, even over time or in variable humidity. Are these suitable for rolling and moving parts in toys?Uniform roundness ensures these wheels perform well in moving toy projects, provided axles fit the bore accurately. Can I order these in large bulk quantities for classes or workshops?Pack sizes include options up to 10,000, making bulk projects and supply reserves efficient for businesses or educators. Can these wheels be engraved for personalization?The fine, unfinished birch is well-suited to laser engraving or detailed hand-painting for custom projects and promotions. Are the edges rounded to prevent splinters during assembly?Edges are machined and sanded smooth for safe handling, even in classroom or children's project environments. Do these fit as replacement wheels for old wooden toys or vintage models?The classic 7/8" size and 3/16" bore make them compatible with many traditional toy designs and repairs. What is the correct way to attach the wheel for a smooth spin?Use a 3/16" axle, and, if needed, a cap or small washer to minimize friction and ensure reliable rotation. Will the birch maintain its integrity if used as a moving part in mechanical displays?Birch is dense and dependable, handling light loads and intermittent motion with ease, but is best kept indoors for longevity. How should unused wheels be stored to retain their shape?Store in a cool, dry area away from direct sunlight and moisture to prevent dimensional changes or surface wear. Is there a minimum order size?Wheels are available from packs of 20 up to high-volume bulk, so you can order what your project demands. For miniature builds requiring visual quality and mechanical consistency, our 7/8" classic birch wheels deliver on dimensional accuracy, finish readiness, and reliable rolling. Each wheel supports your project goals with professional-grade engineering and a surface ready for your creative touch.
