\documentclass[tikz,border=3mm]{standalone}
\usepackage{adjustbox}
\usepackage[american, siunitx , RPvoltages]{circuitikz}
\usetikzlibrary{3d,arrows.meta,bending,calc,decorations.markings,patterns.meta,positioning,shapes.geometric}

\pgfdeclarepattern{name=Bricks,
    parameters={\brickwidth,\brickheight,\brickangle,\bricklinewidth},
    bottom left={\pgfpoint{-.1pt}{-.1pt}},
    top right={\pgfpoint{\brickwidth+.1pt}{\brickheight+.1pt}},
    tile size={\pgfpoint{\brickwidth}{\brickheight}},
    tile transformation={\pgftransformrotate{\brickangle}},
    code={
        \pgfsetlinewidth{\bricklinewidth}
        \pgfpathmoveto{\pgfpoint{-.1pt}{0pt}}
        \pgfpathlineto{\pgfpoint{\brickwidth+.1pt}{0pt}}
        \pgfpathmoveto{\pgfpoint{-.1pt}{0.5*\brickheight}}
        \pgfpathlineto{\pgfpoint{\brickwidth+.1pt}{0.5*\brickheight}}
        \pgfpathmoveto{\pgfpoint{0.25*\brickwidth}{0pt}}
        \pgfpathlineto{\pgfpoint{0.27*\brickwidth}{0.5*\brickheight}}
        \pgfpathmoveto{\pgfpoint{0.75*\brickwidth}{0.5*\brickheight}}
        \pgfpathlineto{\pgfpoint{0.75*\brickwidth}{\brickheight}}
        \pgfusepath{stroke}
} }
\tikzset{/pgf/pattern keys/.cd,
    brick width/.store in=\brickwidth,
    brick height/.store in=\brickheight,
    brick angle/.store in=\brickangle,
    brick line width/.store in=\bricklinewidth,
    brick width=1em,
    brick height=1em,
    brick angle=0pt,
    brick line width=.5pt,
}

\makeatletter
\tikzset{brick fill/.style={path picture={%
            \tikzset{brick fill keys/.cd,#1}%
            \edef\pgfutil@tmpp{path picture bounding box}
            \edef\pgfutil@tmpw{\pgfkeysvalueof{/tikz/brick fill keys/width}}
            \edef\pgfutil@tmph{\pgfkeysvalueof{/tikz/brick fill keys/height}}
            \path[brick fill keys/style] let \p1=($(\pgfutil@tmpp.north east)-(\pgfutil@tmpp.south west)$),
            \n1={scalar(int(\x1/\pgfutil@tmpw))},
            \n2={scalar(int(\y1/\pgfutil@tmph))+1} in
            foreach \YY in {0,...,\n2}
            {([yshift=(\YY-0.5)*\pgfutil@tmph]\pgfutil@tmpp.south west) -- ([yshift=(\YY-0.5)*\pgfutil@tmph]\pgfutil@tmpp.south east)
                ([yshift=\YY*\pgfutil@tmph]\pgfutil@tmpp.south west) -- ([yshift=\YY*\pgfutil@tmph]\pgfutil@tmpp.south east)
                foreach \XX in {0,...,\n1} {
                    ([yshift=(\YY-0.5)*\pgfutil@tmph,xshift=(\XX-0.5)*\pgfutil@tmpw]\pgfutil@tmpp.south west)
                    --([yshift=\YY*\pgfutil@tmph,xshift=(\XX-0.5)*\pgfutil@tmpw]\pgfutil@tmpp.south west)
                    ([yshift=(\YY+0.5)*\pgfutil@tmph,xshift=\XX*\pgfutil@tmpw]\pgfutil@tmpp.south west)
                    --([yshift=\YY*\pgfutil@tmph,xshift=\XX*\pgfutil@tmpw]\pgfutil@tmpp.south west)
            }};}},
    brick fill keys/.cd,width/.initial=1em,height/.initial=1em,style/.style={draw}}
\makeatother

\tikzset{pics/rotarrow/.style={code={\path (160:0.4) coordinate (tmpex);
            \begin{scope}[local bounding box=tmp,x={(tmpex)},
                canvas is xy plane at z=0]
                \clip (-0.41,-0.41) rectangle (0.41,0.41);
                \pgflowlevelsynccm
                \draw[thick,-{Stealth[bend]}] (-150:0.4) arc[start angle=-150,end
                angle=150,radius=0.4];
            \end{scope}
            \path (tmp.north) node [above] {\tikzpictext};
    }},pics/bar/.style={code={\draw[pic actions] (0,-#1) -- (0,#1);}},
    pics/bar/.default=0.5}


% https://topanswers.xyz/transcript?room=1618&id=85298#c85298
\pgfmathsetmacro{\oriex}{1ex}% store the height of an x in normalsize
\pgfmathsetmacro{\oriem}{1em}
\tikzset{every picture/.append style={%
        execute at begin picture={\pgfmathsetmacro{\myscale}{1ex/\oriex}%
            \ctikzset{bipoles/thickness=1,
                resistors/scale=\myscale, capacitors/scale=\myscale,
                diodes/scale=\myscale, transistors/scale=\myscale,
                grounds/scale=\myscale, csources/scale=\myscale,
                sources/scale=\myscale, batteries/scale=\myscale,
                instruments/scale=\myscale, inductors/scale=\myscale,
                electromechanicals/scale=\myscale,
                %current arrow scale=16*\myscale*\myscale,%<-?
                mechanicals/scale=\myscale, use fpu reciprocal}%
            \tikzset{line width= {\myscale*0.4pt}, x=1cm*1em/\oriem, y=1cm*1ex/\oriex}}}}

\begin{document}
    \tiny
    %\begin{adjustbox}{width=1\linewidth} % don't use with standalone
        \begin{tikzpicture}[
            line width = 0.175ex,% thick
            x=3em, y=3em, %<- this scales with the font size
            %scale = 0.5, transform shape,
            damper/.style={very thick,
                decorate,
                decoration={markings,
                    mark connection node=dmp,
                    mark=at position 0.5 with
                    {
                        \node (dmp) [very thick, inner sep=0pt,
                        transform shape,
                        minimum width=2em,
                        minimum height=1.5em, draw=none,
                        #1] {};
                        \draw [very thick] ([xshift=0.5em]dmp.north east) --
                        (dmp.north west) -- (dmp.south west) --
                        ([xshift=0.5em]dmp.south east)
                        ([yshift=-0.25em]dmp.north east) --
                        ([yshift=0.25em]dmp.south east);
            }}},]
            %
            \draw[line width = 0.15ex] (0,2) coordinate[label={[yshift=-0.2ex]below:{$+$}}] (TL)to[ R=$R_a$, o-] ++(2,0)
            to[short,f=$i_a$] ++(0.1,0)
            to[L,cute inductor, l=$L_a$,-.]  ++(2,0)
            to[Telmech=M, name=M1] ++(0,-2)
            to[short,.-o] (0,0) coordinate[label={[yshift=-0.2ex]above:{$-$}}] (ML);
            \path (TL) -- node[midway]{$E_a$} (ML);
            %
            \path (M1) ++ (2,0) coordinate (N1);
            \draw[very thick] (M1) -- pic[pic text={$T_m,\theta_m$}]{rotarrow} (N1) pic[very thick]{bar};
            %
            \draw[very thick] ([yshift=-4.5em]N1) coordinate (N2) pic[very thick]{bar=0.90}
            -- ++ (-1,0) coordinate (N3) pic[very thick]{bar=0.45};
            %
            \draw[very thick] ([yshift=-4em]N3) pic[very thick]{bar=0.775}
            -- pic[pic text={$\theta_L$}, pos=0.5 ]{rotarrow} % xscale=-1 to reflect
            ++ (-1,0) node[anchor=top, cylinder, black, shape border rotate=0, draw, minimum height=4em, minimum width=2em, aspect=0.4,
            cylinder uses custom fill, cylinder end fill = gray!20,
            path picture={\draw($(c.before top)!0.5!(c.after top)$) -- (c.top);}]
            (c) {$J_L$};
            %
            \path (TL|-c) node[draw, rectangle, minimum height=5em, minimum width = 1.5em,  anchor=west, preaction = {fill=gray!10},
            brick fill={height=1.0em, width=1.0em, style/.style={draw=black}}
            %pattern={Bricks[brick width=1.01em, brick height=1.01em]}
            ](bricks) {};
            %
            \draw [damper={label={below:{$D_L$}}}] (c.west) -- (bricks);
            %
        \end{tikzpicture}
    %\end{adjustbox}
\end{document}