2022-09-20 03:18:25 +00:00
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//////////////////////////////////////////////////////////////////////
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// LibFile: ball_bearings.scad
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// Models for standard ball bearing cartridges.
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// Includes:
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// include <BOSL2/std.scad>
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// include <BOSL2/ball_bearings.scad>
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// FileGroup: Parts
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// FileSummary: Models for standard ball bearing cartridges.
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//////////////////////////////////////////////////////////////////////
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// Section: Ball Bearing Models
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// Module: ball_bearing()
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2023-03-31 01:30:05 +00:00
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// Synopsis: Creates a standardized ball bearing assembly.
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// SynTags: Geom
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2023-03-31 01:30:05 +00:00
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// Topics: Parts, Bearings
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// See Also: linear_bearing(), lmXuu_bearing(), lmXuu_housing()
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// Description:
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// Creates a model of a ball bearing assembly.
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// Arguments:
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// trade_size = String name of a standard ball bearing trade size. ie: "608", "6902ZZ", or "R8"
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// id = Inner diameter of ball bearing assembly.
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// od = Outer diameter of ball bearing assembly.
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// width = Width of ball bearing assembly.
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// shield = Does the ball bearing assembly have a shield.
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// flange = Does the ball bearing assembly have a flange.
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// fd = Diameter of the flange (only used if `flange=true`).
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// fw = Width of the flange (only used if `flange=true`).
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// anchor = Translate so anchor point is at origin (0,0,0). See [anchor](attachments.scad#subsection-anchor). Default: `CENTER`
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// spin = Rotate this many degrees around the Z axis after anchor. See [spin](attachments.scad#subsection-spin). Default: `0`
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// orient = Vector to rotate top towards, after spin. See [orient](attachments.scad#subsection-orient). Default: `UP`
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// Example:
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// ball_bearing("608", $fn=72);
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// Example:
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// ball_bearing("608ZZ", $fn=72);
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// Example:
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// ball_bearing("R8", $fn=72);
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// Example:
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// ball_bearing(id=12,od=32,width=10,shield=false, $fn=72);
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// Example:
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// ball_bearing(id=12,od=24,width=6,shield=true, flange=true, fd=26.5, fw=1.5, $fn=72);
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module ball_bearing(trade_size, id, od, width, shield=true, flange=false, fd=0, fw=0, anchor=CTR, spin=0, orient=UP) {
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info = is_undef(trade_size)? [id, od, width, shield] :
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ball_bearing_info(trade_size);
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check = assert(all_defined(info), "Bad Input");
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id = info[0];
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od = info[1];
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width = info[2];
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shield = info[3];
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flange = info[4];
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fd = info[5];
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fw = info[6];
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mid_d = (id+od)/2;
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wall = (od-id)/2/3;
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color("silver")
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attachable(anchor,spin,orient, d=od, l=width) {
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if (shield) {
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tube(id=id, wall=wall, h=width);
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tube(od=od, wall=wall, h=width);
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tube(id=id+0.1, od=od-0.1, h=(wall*2+width)/2);
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if (flange){
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translate([0,0,-width/2+fw/2])tube(id=od, od=fd, h=fw);
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}
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} else {
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ball_cnt = floor(PI*mid_d*0.95 / (wall*2));
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difference() {
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union() {
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tube(id=id, wall=wall, h=width);
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tube(od=od, wall=wall, h=width);
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}
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torus(r_maj=mid_d/2, r_min=wall);
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}
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for (i=[0:1:ball_cnt-1]) {
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zrot(i*360/ball_cnt) right(mid_d/2) sphere(d=wall*2);
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}
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if (flange){
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translate([0,0,-width/2+fw/2])tube(id=od, od=fd, h=fw);
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}
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}
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2022-09-20 03:18:25 +00:00
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children();
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}
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}
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// Section: Ball Bearing Info
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// Function: ball_bearing_info()
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// Synopsis: Returns size info for a standardized ball bearing assembly.
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2023-03-31 01:30:05 +00:00
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// Topics: Parts, Bearings
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// See Also: ball_bearing(), linear_bearing(), lmXuu_info()
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// Description:
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// Get dimensional info for a standard metric ball bearing cartridge.
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// Returns `[SHAFT_DIAM, OUTER_DIAM, WIDTH, SHIELDED, FLANGED, FLANGE_DIAM, FLANGE_WIDTH]` for the cylindrical cartridge.
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// Arguments:
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// size = Inner diameter of lmXuu bearing, in mm.
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function ball_bearing_info(trade_size) =
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assert(is_string(trade_size))
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let(
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IN = 25.4,
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data = [
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// trade_size, ID, OD, width, shielded, flanged, fd, fw
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[ "R2", 1/8*IN, 3/8*IN, 5/32*IN, false, false, 0, 0 ],
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[ "R3", 3/16*IN, 1/2*IN, 5/32*IN, false, false, 0, 0 ],
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[ "R4", 1/4*IN, 5/8*IN, 0.196*IN, false, false, 0, 0 ],
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[ "R6", 3/8*IN, 7/8*IN, 7/32*IN, false, false, 0, 0 ],
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[ "R8", 1/2*IN, 9/8*IN, 1/4*IN, false, false, 0, 0 ],
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[ "R10", 5/8*IN, 11/8*IN, 9/32*IN, false, false, 0, 0 ],
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[ "R12", 3/4*IN, 13/8*IN, 5/16*IN, false, false, 0, 0 ],
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[ "R14", 7/8*IN, 15/8*IN, 3/8*IN, false, false, 0, 0 ],
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[ "R16", 8/8*IN, 16/8*IN, 3/8*IN, false, false, 0, 0 ],
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[ "R18", 9/8*IN, 17/8*IN, 3/8*IN, false, false, 0, 0 ],
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[ "R20", 10/8*IN, 18/8*IN, 3/8*IN, false, false, 0, 0 ],
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[ "R22", 11/8*IN, 20/8*IN, 7/16*IN, false, false, 0, 0 ],
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[ "R24", 12/8*IN, 21/8*IN, 7/16*IN, false, false, 0, 0 ],
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[ "R2ZZ", 1/8*IN, 3/8*IN, 5/32*IN, true, false, 0, 0 ],
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[ "R3ZZ", 3/16*IN, 1/2*IN, 5/32*IN, true, false, 0, 0 ],
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[ "R4ZZ", 1/4*IN, 5/8*IN, 0.196*IN, true, false, 0, 0 ],
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[ "R6ZZ", 3/8*IN, 7/8*IN, 7/32*IN, true, false, 0, 0 ],
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[ "R8ZZ", 1/2*IN, 9/8*IN, 1/4*IN, true, false, 0, 0 ],
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[ "R10ZZ", 5/8*IN, 11/8*IN, 9/32*IN, true, false, 0, 0 ],
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[ "R12ZZ", 3/4*IN, 13/8*IN, 5/16*IN, true, false, 0, 0 ],
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[ "R14ZZ", 7/8*IN, 15/8*IN, 3/8*IN, true, false, 0, 0 ],
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[ "R16ZZ", 8/8*IN, 16/8*IN, 3/8*IN, true, false, 0, 0 ],
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[ "R18ZZ", 9/8*IN, 17/8*IN, 3/8*IN, true, false, 0, 0 ],
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[ "R20ZZ", 10/8*IN, 18/8*IN, 3/8*IN, true, false, 0, 0 ],
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[ "R22ZZ", 11/8*IN, 20/8*IN, 7/16*IN, true, false, 0, 0 ],
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[ "R24ZZ", 12/8*IN, 21/8*IN, 7/16*IN, true, false, 0, 0 ],
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[ "608", 8, 22, 7, false, false, 0, 0 ],
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[ "629", 9, 26, 8, false, false, 0, 0 ],
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[ "635", 5, 19, 6, false, false, 0, 0 ],
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[ "6000", 10, 26, 8, false, false, 0, 0 ],
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[ "6001", 12, 28, 8, false, false, 0, 0 ],
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[ "6002", 15, 32, 9, false, false, 0, 0 ],
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[ "6003", 17, 35, 10, false, false, 0, 0 ],
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[ "6007", 35, 62, 14, false, false, 0, 0 ],
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[ "6200", 10, 30, 9, false, false, 0, 0 ],
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[ "6201", 12, 32, 10, false, false, 0, 0 ],
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[ "6202", 15, 35, 11, false, false, 0, 0 ],
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[ "6203", 17, 40, 12, false, false, 0, 0 ],
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[ "6204", 20, 47, 14, false, false, 0, 0 ],
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[ "6205", 25, 52, 15, false, false, 0, 0 ],
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[ "6206", 30, 62, 16, false, false, 0, 0 ],
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[ "6207", 35, 72, 17, false, false, 0, 0 ],
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[ "6208", 40, 80, 18, false, false, 0, 0 ],
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[ "6209", 45, 85, 19, false, false, 0, 0 ],
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[ "6210", 50, 90, 20, false, false, 0, 0 ],
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[ "6211", 55, 100, 21, false, false, 0, 0 ],
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[ "6212", 60, 110, 22, false, false, 0, 0 ],
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[ "6301", 12, 37, 12, false, false, 0, 0 ],
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[ "6302", 15, 42, 13, false, false, 0, 0 ],
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[ "6303", 17, 47, 14, false, false, 0, 0 ],
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[ "6304", 20, 52, 15, false, false, 0, 0 ],
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[ "6305", 25, 62, 17, false, false, 0, 0 ],
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[ "6306", 30, 72, 19, false, false, 0, 0 ],
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[ "6307", 35, 80, 21, false, false, 0, 0 ],
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[ "6308", 40, 90, 23, false, false, 0, 0 ],
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[ "6309", 45, 100, 25, false, false, 0, 0 ],
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[ "6310", 50, 110, 27, false, false, 0, 0 ],
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[ "6311", 55, 120, 29, false, false, 0, 0 ],
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[ "6312", 60, 130, 31, false, false, 0, 0 ],
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[ "6403", 17, 62, 17, false, false, 0, 0 ],
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[ "6800", 10, 19, 5, false, false, 0, 0 ],
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[ "6801", 12, 21, 5, false, false, 0, 0 ],
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[ "6802", 15, 24, 5, false, false, 0, 0 ],
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[ "6803", 17, 26, 5, false, false, 0, 0 ],
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[ "6804", 20, 32, 7, false, false, 0, 0 ],
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[ "6805", 25, 37, 7, false, false, 0, 0 ],
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[ "6806", 30, 42, 7, false, false, 0, 0 ],
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[ "6900", 10, 22, 6, false, false, 0, 0 ],
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[ "6901", 12, 24, 6, false, false, 0, 0 ],
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[ "6902", 15, 28, 7, false, false, 0, 0 ],
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[ "6903", 17, 30, 7, false, false, 0, 0 ],
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[ "6904", 20, 37, 9, false, false, 0, 0 ],
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[ "6905", 25, 42, 9, false, false, 0, 0 ],
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[ "6906", 30, 47, 9, false, false, 0, 0 ],
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[ "6907", 35, 55, 10, false, false, 0, 0 ],
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[ "6908", 40, 62, 12, false, false, 0, 0 ],
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[ "16002", 15, 22, 8, false, false, 0, 0 ],
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[ "16004", 20, 42, 8, false, false, 0, 0 ],
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[ "16005", 25, 47, 8, false, false, 0, 0 ],
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[ "16100", 10, 28, 8, false, false, 0, 0 ],
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[ "16101", 12, 30, 8, false, false, 0, 0 ],
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[ "608ZZ", 8, 22, 7, true, false, 0, 0 ],
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[ "629ZZ", 9, 26, 8, true, false, 0, 0 ],
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[ "635ZZ", 5, 19, 6, true, false, 0, 0 ],
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[ "6000ZZ", 10, 26, 8, true, false, 0, 0 ],
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[ "6001ZZ", 12, 28, 8, true, false, 0, 0 ],
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[ "6002ZZ", 15, 32, 9, true, false, 0, 0 ],
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[ "6003ZZ", 17, 35, 10, true, false, 0, 0 ],
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[ "6007ZZ", 35, 62, 14, true, false, 0, 0 ],
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[ "6200ZZ", 10, 30, 9, true, false, 0, 0 ],
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[ "6201ZZ", 12, 32, 10, true, false, 0, 0 ],
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[ "6202ZZ", 15, 35, 11, true, false, 0, 0 ],
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[ "6203ZZ", 17, 40, 12, true, false, 0, 0 ],
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[ "6204ZZ", 20, 47, 14, true, false, 0, 0 ],
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[ "6205ZZ", 25, 52, 15, true, false, 0, 0 ],
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[ "6206ZZ", 30, 62, 16, true, false, 0, 0 ],
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[ "6207ZZ", 35, 72, 17, true, false, 0, 0 ],
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[ "6208ZZ", 40, 80, 18, true, false, 0, 0 ],
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[ "6209ZZ", 45, 85, 19, true, false, 0, 0 ],
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[ "6210ZZ", 50, 90, 20, true, false, 0, 0 ],
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[ "6211ZZ", 55, 100, 21, true, false, 0, 0 ],
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[ "6212ZZ", 60, 110, 22, true, false, 0, 0 ],
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[ "6301ZZ", 12, 37, 12, true, false, 0, 0 ],
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[ "6302ZZ", 15, 42, 13, true, false, 0, 0 ],
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[ "6303ZZ", 17, 47, 14, true, false, 0, 0 ],
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[ "6304ZZ", 20, 52, 15, true, false, 0, 0 ],
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[ "6305ZZ", 25, 62, 17, true, false, 0, 0 ],
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[ "6306ZZ", 30, 72, 19, true, false, 0, 0 ],
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[ "6307ZZ", 35, 80, 21, true, false, 0, 0 ],
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[ "6308ZZ", 40, 90, 23, true, false, 0, 0 ],
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[ "6309ZZ", 45, 100, 25, true, false, 0, 0 ],
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[ "6310ZZ", 50, 110, 27, true, false, 0, 0 ],
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[ "6311ZZ", 55, 120, 29, true, false, 0, 0 ],
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[ "6312ZZ", 60, 130, 31, true, false, 0, 0 ],
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[ "6403ZZ", 17, 62, 17, true, false, 0, 0 ],
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[ "6800ZZ", 10, 19, 5, true, false, 0, 0 ],
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[ "6801ZZ", 12, 21, 5, true, false, 0, 0 ],
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[ "6802ZZ", 15, 24, 5, true, false, 0, 0 ],
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[ "6803ZZ", 17, 26, 5, true, false, 0, 0 ],
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[ "6804ZZ", 20, 32, 7, true, false, 0, 0 ],
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[ "6805ZZ", 25, 37, 7, true, false, 0, 0 ],
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[ "6806ZZ", 30, 42, 7, true, false, 0, 0 ],
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[ "6900ZZ", 10, 22, 6, true, false, 0, 0 ],
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[ "6901ZZ", 12, 24, 6, true, false, 0, 0 ],
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[ "6902ZZ", 15, 28, 7, true, false, 0, 0 ],
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[ "6903ZZ", 17, 30, 7, true, false, 0, 0 ],
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[ "6904ZZ", 20, 37, 9, true, false, 0, 0 ],
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[ "6905ZZ", 25, 42, 9, true, false, 0, 0 ],
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[ "6906ZZ", 30, 47, 9, true, false, 0, 0 ],
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[ "6907ZZ", 35, 55, 10, true, false, 0, 0 ],
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[ "6908ZZ", 40, 62, 12, true, false, 0, 0 ],
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[ "16002ZZ", 15, 22, 8, true, false, 0, 0 ],
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[ "16004ZZ", 20, 42, 8, true, false, 0, 0 ],
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[ "16005ZZ", 25, 47, 8, true, false, 0, 0 ],
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[ "16100ZZ", 10, 28, 8, true, false, 0, 0 ],
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[ "16101ZZ", 12, 30, 8, true, false, 0, 0 ],
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[ "MF52ZZ", 2, 5, 2, true, true, 6.2, 0.6 ],
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[ "MF63ZZ", 3, 6, 2.5, true, true, 7.2, 0.6 ],
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[ "MF74ZZ", 4, 7, 2.5, true, true, 8.2, 0.6 ],
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[ "MF83ZZ", 3, 8, 2.5, true, true, 9.2, 0.6 ],
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|
[ "MF85ZZ", 5, 8, 2.5, true, true, 9.2, 0.6 ],
|
|
|
|
[ "MF95ZZ", 5, 9, 2.5, true, true, 10.2, 0.6 ],
|
|
|
|
[ "MF105ZZ", 5, 10, 3, true, true, 11.2, 0.6 ],
|
|
|
|
[ "MF117ZZ", 7, 11, 2.5, true, true, 12.2, 0.6 ],
|
|
|
|
[ "MF128ZZ", 8, 12, 3.5, true, true, 13.6, 0.8 ],
|
|
|
|
[ "MF148ZZ", 8, 14, 3.5, true, true, 15.6, 0.8 ],
|
|
|
|
[ "F6700ZZ", 10, 15, 4, true, true, 16.8, 0.8 ],
|
|
|
|
[ "F6701ZZ", 12, 18, 4, true, true, 19.8, 0.8 ],
|
|
|
|
[ "F6800ZZ", 10, 19, 5, true, true, 21.1, 1.1 ],
|
|
|
|
[ "F6801ZZ", 12, 21, 5, true, true, 23.1, 1.1 ],
|
|
|
|
[ "F6802ZZ", 15, 24, 5, true, true, 26.1, 1.1 ],
|
|
|
|
[ "F6803ZZ", 17, 26, 5, true, true, 28.1, 1.1 ],
|
|
|
|
[ "F6804ZZ", 20, 32, 7, true, true, 35, 1.5 ],
|
|
|
|
[ "F6805ZZ", 25, 37, 7, true, true, 40.2, 1.5 ],
|
|
|
|
[ "F6900ZZ", 10, 22, 6, true, true, 24.5, 1.5 ],
|
|
|
|
[ "F6901ZZ", 12, 24, 6, true, true, 26.5, 1.5 ],
|
|
|
|
|
|
|
|
[ "MF85", 5, 8, 2, false, true, 9.2, 0.6 ],
|
2022-09-20 03:18:25 +00:00
|
|
|
],
|
|
|
|
found = search([trade_size], data, 1)[0]
|
|
|
|
)
|
2022-09-20 07:48:34 +00:00
|
|
|
assert(found!=[], str("Unsupported ball bearing trade size: ", trade_size))
|
2022-09-20 03:18:25 +00:00
|
|
|
select(data[found], 1, -1);
|
|
|
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|
|
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// vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap
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