Free Mechanical 3D Models

Machined parts, gears, ball bearings, stepper motors and other mechanical components. Every file here is public domain: open it in your browser, then download it and use it for anything.

3481 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

318 3D parts in Mechanical · Clear all

  • HS-311 standard servo with original hornstepRotate in 3D
    HS-311 standard servo with original horn

    HS-311 standard servo with original horn, modeled from published dimensions. Overall 58.5 x 20 x 42.8 mm. Key dimensions: case length 40 mm; case width 20 mm; case height 36.5 mm; tab span 53 mm; tab width 20 mm; tab under height 26.5 mm; tab thickness 2.5 mm; mount slot diameter 4.5 mm; output axis x 10 mm; output teeth 24; output major diameter 6 mm; output tip height 41.6 mm; horn true. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Original single-arm horn has 1.7 mm linkage holes at 3 mm pitch; it is not a vendor horn drawing. HS-311 uses the 2025 MULTIPLEX/Hitec drawing: 53 mm tab span, 47.8 x 10.2 mm slot pattern and 41.6 mm height to the output tip. The nominal 24-tooth output is 6 mm diameter; tooth profile is illustrative. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • HS-311 standard servostepRotate in 3D
    HS-311 standard servo

    HS-311 standard servo, modeled from published dimensions. Overall 53 x 20 x 41.6 mm. Key dimensions: case length 40 mm; case width 20 mm; case height 36.5 mm; tab span 53 mm; tab width 20 mm; tab under height 26.5 mm; tab thickness 2.5 mm; mount slot diameter 4.5 mm; output axis x 10 mm; output teeth 24; output major diameter 6 mm; output tip height 41.6 mm; horn false. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Bare output shaft; no horn fitted. HS-311 uses the 2025 MULTIPLEX/Hitec drawing: 53 mm tab span, 47.8 x 10.2 mm slot pattern and 41.6 mm height to the output tip. The nominal 24-tooth output is 6 mm diameter; tooth profile is illustrative. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • FS90-C 9 g micro servo with original hornstepRotate in 3D
    FS90-C 9 g micro servo with original horn

    FS90-C 9 g micro servo with original horn, modeled from published dimensions. Overall 36.7 x 12.5 x 31.4 mm. Key dimensions: case length 23.2 mm; case width 12.5 mm; case height 23 mm; tab span 32.6 mm; tab width 11.8 mm; tab under height 16.4 mm; tab thickness 2.4 mm; mount slot diameter 4 mm; output axis x 5.4 mm; output teeth 20; output major diameter 4.8 mm; output tip height 30.5 mm; horn true. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Original single-arm horn has 1.7 mm linkage holes at 3 mm pitch; it is not a vendor horn drawing. FS90 output center X=5.35 mm is inferred from the case geometry; tab slot diameter 4 mm and spline extension 3.2 mm are selected from the undimensioned drawing. Verify those interfaces against the physical servo before drilling or making a mating spline. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • FS90-C 9 g micro servostepRotate in 3D
    FS90-C 9 g micro servo

    FS90-C 9 g micro servo, modeled from published dimensions. Overall 32.6 x 12.5 x 30.5 mm. Key dimensions: case length 23.2 mm; case width 12.5 mm; case height 23 mm; tab span 32.6 mm; tab width 11.8 mm; tab under height 16.4 mm; tab thickness 2.4 mm; mount slot diameter 4 mm; output axis x 5.4 mm; output teeth 20; output major diameter 4.8 mm; output tip height 30.5 mm; horn false. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Bare output shaft; no horn fitted. FS90 output center X=5.35 mm is inferred from the case geometry; tab slot diameter 4 mm and spline extension 3.2 mm are selected from the undimensioned drawing. Verify those interfaces against the physical servo before drilling or making a mating spline. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Torsion spring, 12 mm coil OD, 90-degree legsstlRotate in 3D
    Torsion spring, 12 mm coil OD, 90-degree legs

    Torsion spring, 12 mm coil OD, 90-degree legs, modeled from published dimensions. Overall 31 x 31 x 8.6 mm. Key dimensions: coil outer diameter 12 mm; wire diameter 1.5 mm; coil turns 4.3; coil pitch 1.7 mm; straight leg length 25 mm; free leg angle degrees 90. Original geometric torsion-spring prototype. A continuous spline joins the nominal helical coil to the tangential legs, arranged 90 degrees apart, with clearance between coils and plain cut ends. No torque rating or allowable rotation is assigned; this model is an unloaded layout shape. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Hooked extension spring, 12 mm coil ODstlRotate in 3D
    Hooked extension spring, 12 mm coil OD

    Hooked extension spring, 12 mm coil OD, modeled from published dimensions. Overall 12 x 12 x 38.1 mm. Key dimensions: coil outer diameter 12 mm; wire diameter 1 mm; coil turns 14; coil pitch 1.1 mm; coil centerline length 15.1 mm; hook centerline radius 5.5 mm; hook arc degrees 300. Original geometric spring prototype with two open machine-style hooks and smooth lead-in bends. Close-wound coils retain a small modeling clearance. Initial tension, manufacturing residual stress, force-extension behavior and fatigue are not simulated. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Compression spring 16 mm OD x 40 mmstlRotate in 3D
    Compression spring 16 mm OD x 40 mm

    Compression spring 16 mm OD x 40 mm, modeled from published dimensions. Overall 16 x 16 x 40 mm. Key dimensions: nominal outer diameter 16 mm; wire diameter 1.5 mm; free length 40 mm; turns 8; middle pitch 5.5 mm; end pitch 1.6 mm; ends Reduced pitch, planar ground. Original parameterized prototype. End pitch transitions continuously into the active coils; both ends are clipped to flat seating planes. Wire clearance is retained between turns. Geometric dimensions only. Material grade, spring rate, stresses, fatigue and load capacity are not assigned or validated. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Compression spring 10 mm OD x 20 mmstlRotate in 3D
    Compression spring 10 mm OD x 20 mm

    Compression spring 10 mm OD x 20 mm, modeled from published dimensions. Overall 10 x 10 x 20 mm. Key dimensions: nominal outer diameter 10 mm; wire diameter 1 mm; free length 20 mm; turns 7; middle pitch 3.2 mm; end pitch 1.1 mm; ends Reduced pitch, planar ground. Original parameterized prototype. End pitch transitions continuously into the active coils; both ends are clipped to flat seating planes. Wire clearance is retained between turns. Geometric dimensions only. Material grade, spring rate, stresses, fatigue and load capacity are not assigned or validated. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • V-slot 40 x 40 x 250 mmstep40 x 40Rotate in 3D
    V-slot 40 x 40 x 250 mm

    V-slot 40 x 40 x 250 mm, modeled from published dimensions. Overall 40 x 40 x 250 mm. Key dimensions: width 40 mm; height 40 mm; length 250 mm; slot pitch 20 mm; slot throat 6.3 mm; core bore 4.2 mm; profile series 20 series V-slot; v groove included angle deg 90. Nominal outer envelope, slot pitch/throat and core holes follow the cited drawings. Length is a selected 250 mm cut. Core holes are untapped. V faces use the dimensioned 90-degree groove and 1.8 mm lip. Undimensioned internal webs, center cavities and small corner radii are reconstructed approximations. Do not use the mesh to derive section stiffness, supplier mass or unlisted mating tolerances. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • V-slot 20 x 40 x 250 mmstep20 x 40Rotate in 3D
    V-slot 20 x 40 x 250 mm

    V-slot 20 x 40 x 250 mm, modeled from published dimensions. Overall 40 x 20 x 250 mm. Key dimensions: width 40 mm; height 20 mm; length 250 mm; slot pitch 20 mm; slot throat 6.3 mm; core bore 4.2 mm; profile series 20 series V-slot; v groove included angle deg 90. Nominal outer envelope, slot pitch/throat and core holes follow the cited drawings. Length is a selected 250 mm cut. Core holes are untapped. V faces use the dimensioned 90-degree groove and 1.8 mm lip. Undimensioned internal webs, center cavities and small corner radii are reconstructed approximations. Do not use the mesh to derive section stiffness, supplier mass or unlisted mating tolerances. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • V-slot 20 x 20 x 250 mmstep20 x 20Rotate in 3D
    V-slot 20 x 20 x 250 mm

    V-slot 20 x 20 x 250 mm, modeled from published dimensions. Overall 20 x 20 x 250 mm. Key dimensions: width 20 mm; height 20 mm; length 250 mm; slot pitch 20 mm; slot throat 6.3 mm; core bore 4.2 mm; profile series 20 series V-slot; v groove included angle deg 90. Nominal outer envelope, slot pitch/throat and core holes follow the cited drawings. Length is a selected 250 mm cut. Core holes are untapped. V faces use the dimensioned 90-degree groove and 1.8 mm lip. Undimensioned internal webs, center cavities and small corner radii are reconstructed approximations. Do not use the mesh to derive section stiffness, supplier mass or unlisted mating tolerances. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • T-slot 40 x 40 x 250 mmstep40 x 40Rotate in 3D
    T-slot 40 x 40 x 250 mm

    T-slot 40 x 40 x 250 mm, modeled from published dimensions. Overall 40 x 40 x 250 mm. Key dimensions: width 40 mm; height 40 mm; length 250 mm; slot pitch 20 mm; slot throat 5 mm; core bore 4.3 mm; profile series I-type slot 5. Nominal outer envelope, slot pitch/throat and core holes follow the cited drawings. Length is a selected 250 mm cut. Core holes are untapped. T-slot geometry follows the I-type slot-5 profile, not the visually similar slot-6 or slot-8 systems. Undimensioned internal webs, center cavities and small corner radii are reconstructed approximations. Do not use the mesh to derive section stiffness, supplier mass or unlisted mating tolerances. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • T-slot 20 x 40 x 250 mmstep20 x 40Rotate in 3D
    T-slot 20 x 40 x 250 mm

    T-slot 20 x 40 x 250 mm, modeled from published dimensions. Overall 40 x 20 x 250 mm. Key dimensions: width 40 mm; height 20 mm; length 250 mm; slot pitch 20 mm; slot throat 5 mm; core bore 4.3 mm; profile series I-type slot 5. Nominal outer envelope, slot pitch/throat and core holes follow the cited drawings. Length is a selected 250 mm cut. Core holes are untapped. T-slot geometry follows the I-type slot-5 profile, not the visually similar slot-6 or slot-8 systems. Undimensioned internal webs, center cavities and small corner radii are reconstructed approximations. Do not use the mesh to derive section stiffness, supplier mass or unlisted mating tolerances. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • T-slot 20 x 20 x 250 mmstep20 x 20Rotate in 3D
    T-slot 20 x 20 x 250 mm

    T-slot 20 x 20 x 250 mm, modeled from published dimensions. Overall 20 x 20 x 250 mm. Key dimensions: width 20 mm; height 20 mm; length 250 mm; slot pitch 20 mm; slot throat 5 mm; core bore 4.3 mm; profile series I-type slot 5. Nominal outer envelope, slot pitch/throat and core holes follow the cited drawings. Length is a selected 250 mm cut. Core holes are untapped. T-slot geometry follows the I-type slot-5 profile, not the visually similar slot-6 or slot-8 systems. Undimensioned internal webs, center cavities and small corner radii are reconstructed approximations. Do not use the mesh to derive section stiffness, supplier mass or unlisted mating tolerances. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 8 mm set screw shaft collarstepRotate in 3D
    8 mm set screw shaft collar

    8 mm set screw shaft collar, modeled from published dimensions. Overall 16 x 16 x 8 mm. Key dimensions: bore 8 mm; collar outer diameter 16 mm; collar width 8 mm; screw diameter 4 mm; screw length 4 mm; reference part MSC-8-F. Bore, collar OD/width and set-screw size follow the source. The screw tip is positioned just clear of the nominal shaft; longer screw sizes protrude accordingly. Cup-point and internal tapped-hole detail are simplified. Modeled right-hand nominal 60-degree threads. Tolerance allowances, root radii and manufacturing runouts are simplified; use the stated nominal dimensions for layout. Nominal bore; published manufacturing tolerances are not applied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 20 mm set screw shaft collarstepRotate in 3D
    20 mm set screw shaft collar

    20 mm set screw shaft collar, modeled from published dimensions. Overall 32 x 34 x 14 mm. Key dimensions: bore 20 mm; collar outer diameter 32 mm; collar width 14 mm; screw diameter 6 mm; screw length 8 mm; reference part MSC-20-F. Bore, collar OD/width and set-screw size follow the source. The screw tip is positioned just clear of the nominal shaft; longer screw sizes protrude accordingly. Cup-point and internal tapped-hole detail are simplified. Modeled right-hand nominal 60-degree threads. Tolerance allowances, root radii and manufacturing runouts are simplified; use the stated nominal dimensions for layout. Nominal bore; published manufacturing tolerances are not applied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 12 mm set screw shaft collarstepRotate in 3D
    12 mm set screw shaft collar

    12 mm set screw shaft collar, modeled from published dimensions. Overall 22 x 23 x 12 mm. Key dimensions: bore 12 mm; collar outer diameter 22 mm; collar width 12 mm; screw diameter 6 mm; screw length 6 mm; reference part MSC-12-F. Bore, collar OD/width and set-screw size follow the source. The screw tip is positioned just clear of the nominal shaft; longer screw sizes protrude accordingly. Cup-point and internal tapped-hole detail are simplified. Modeled right-hand nominal 60-degree threads. Tolerance allowances, root radii and manufacturing runouts are simplified; use the stated nominal dimensions for layout. Nominal bore; published manufacturing tolerances are not applied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 8 mm clamp shaft collarstepRotate in 3D
    8 mm clamp shaft collar

    8 mm clamp shaft collar, modeled from published dimensions. Overall 18 x 18.3 x 9 mm. Key dimensions: bore 8 mm; collar outer diameter 18 mm; collar width 9 mm; screw diameter 3 mm; screw length 8 mm; reference part MCL-8-A; screw axis offset 6.5 mm; published clearance diameter max 22.4 mm; split gap 0.6 mm. Bore, collar OD/width, screw size and radial screw-axis offset follow the source. Screw seating position is chosen within the published clearance diameter. Slit width and machining reliefs are representative. Internal tapped hole is a clearance envelope, not an additional helical thread. Modeled right-hand nominal 60-degree threads. Tolerance allowances, root radii and manufacturing runouts are simplified; use the stated nominal dimensions for layout. Nominal bore; published manufacturing tolerances are not applied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 20 mm clamp shaft collarstepRotate in 3D
    20 mm clamp shaft collar

    20 mm clamp shaft collar, modeled from published dimensions. Overall 40 x 40 x 15 mm. Key dimensions: bore 20 mm; collar outer diameter 40 mm; collar width 15 mm; screw diameter 6 mm; screw length 16 mm; reference part MCL-20-A; screw axis offset 14.7 mm; published clearance diameter max 47.4 mm; split gap 0.8 mm. Bore, collar OD/width, screw size and radial screw-axis offset follow the source. Screw seating position is chosen within the published clearance diameter. Slit width and machining reliefs are representative. Internal tapped hole is a clearance envelope, not an additional helical thread. Modeled right-hand nominal 60-degree threads. Tolerance allowances, root radii and manufacturing runouts are simplified; use the stated nominal dimensions for layout. Nominal bore; published manufacturing tolerances are not applied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • 12 mm clamp shaft collarstepRotate in 3D
    12 mm clamp shaft collar

    12 mm clamp shaft collar, modeled from published dimensions. Overall 28 x 28 x 11 mm. Key dimensions: bore 12 mm; collar outer diameter 28 mm; collar width 11 mm; screw diameter 4 mm; screw length 12 mm; reference part MCL-12-A; screw axis offset 10 mm; published clearance diameter max 32 mm; split gap 0.8 mm. Bore, collar OD/width, screw size and radial screw-axis offset follow the source. Screw seating position is chosen within the published clearance diameter. Slit width and machining reliefs are representative. Internal tapped hole is a clearance envelope, not an additional helical thread. Modeled right-hand nominal 60-degree threads. Tolerance allowances, root radii and manufacturing runouts are simplified; use the stated nominal dimensions for layout. Nominal bore; published manufacturing tolerances are not applied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Ball bearing 625 (sealed)step625Rotate in 3D
    Ball bearing 625 (sealed)

    Ball bearing 625 (sealed), modeled from published dimensions. Overall 16 x 16 x 5 mm. Key dimensions: bore 5 mm; outside diameter 16 mm; width 5 mm; configuration Recessed dual seals; simplified internal envelope. Bore, outside diameter and width match the cited manufacturer dimensional table. Races and seal profiles are representative. Balls, cage, grease and internal clearances are omitted; this is an installation-envelope model. No load or speed rating is implied by this generic geometry. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Ball bearing 6205 (sealed)step6205Rotate in 3D
    Ball bearing 6205 (sealed)

    Ball bearing 6205 (sealed), modeled from published dimensions. Overall 52 x 52 x 15 mm. Key dimensions: bore 25 mm; outside diameter 52 mm; width 15 mm; configuration Recessed dual seals; simplified internal envelope. Bore, outside diameter and width match the cited manufacturer dimensional table. Races and seal profiles are representative. Balls, cage, grease and internal clearances are omitted; this is an installation-envelope model. No load or speed rating is implied by this generic geometry. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Ball bearing 6204 (sealed)step6204Rotate in 3D
    Ball bearing 6204 (sealed)

    Ball bearing 6204 (sealed), modeled from published dimensions. Overall 47 x 47 x 14 mm. Key dimensions: bore 20 mm; outside diameter 47 mm; width 14 mm; configuration Recessed dual seals; simplified internal envelope. Bore, outside diameter and width match the cited manufacturer dimensional table. Races and seal profiles are representative. Balls, cage, grease and internal clearances are omitted; this is an installation-envelope model. No load or speed rating is implied by this generic geometry. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

  • Ball bearing 6203 (sealed)step6203Rotate in 3D
    Ball bearing 6203 (sealed)

    Ball bearing 6203 (sealed), modeled from published dimensions. Overall 40 x 40 x 12 mm. Key dimensions: bore 17 mm; outside diameter 40 mm; width 12 mm; configuration Recessed dual seals; simplified internal envelope. Bore, outside diameter and width match the cited manufacturer dimensional table. Races and seal profiles are representative. Balls, cage, grease and internal clearances are omitted; this is an installation-envelope model. No load or speed rating is implied by this generic geometry. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

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