Micro RC Servo, Hitec HS-55

The Hitec HS-55 is a micro servo: its case is 22.8 mm long, 11.6 mm wide and 24 mm high, and its ears span 32.6 mm, with 2 mm mounting holes 28.6 mm apart. Modeled as simplified STEP files.

How these parts are made, and what the levels mean: read the method

• Also searched as: Hitec HS-55 servo
• Model id: rc-servos-hitec-hs55
• Standard: RC servo · size Hitec HS-55

Files

Part key	Simplified
rc-servos-hitec-hs55	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
L	Case length		22.8		22.8	nominal	L2
W	Case width		11.6		11.6	nominal	L2
Hc	Case height		24		24	nominal	L2
E	Ear span		32.6		32.6	nominal	L2
He	Ear height		16.7		16.7	nominal	L2
te	Ear thickness		1		1	nominal	L2
A	Mounting hole spacing		28.6		28.6	nominal	L2
dh	Mounting hole diameter		2		2	nominal	L2
xo	Output position		9		9	nominal	L2
xf	Output position, far ear		19.6		19.6	nominal	L2
Hsh	Shoulder height		20.8		20.8	nominal	L2
hh	Horn top above the case		3.8		3.8	nominal	L2
hu	Horn clearance over the ears		9.1		9.1	nominal	L2
hw	Horn top above the ears		11.1		11.1	nominal	L2
lw	Lead length		250		250	nominal	L2
lc	Connector length		14		14	nominal	L2

Drawing

As a PDF: CC-SERVO-SZ-hitec-hs55.pdf.

The Hitec HS-55 RC servo beside the Hitec HS-311

The Hitec HS-55 is the first of the 3 RC servo RC servos published here, listed from Hitec HS-55 to Hitec HS-422.

• Case length (L): 22.8 mm on the Hitec HS-55 RC servo, against 40 mm on the Hitec HS-311.
• Case width (W): 11.6 mm on the Hitec HS-55 RC servo, against 20 mm on the Hitec HS-311.
• Case height (Hc): 24 mm on the Hitec HS-55 RC servo, against 36.5 mm on the Hitec HS-311.
• Ear span (E): 32.6 mm on the Hitec HS-55 RC servo, against 52.8 mm on the Hitec HS-311.
• Ear height (He): 16.7 mm on the Hitec HS-55 RC servo, against 26.5 mm on the Hitec HS-311.
• Ear thickness (te): 1 mm on the Hitec HS-55 RC servo, against 2.5 mm on the Hitec HS-311.
• Mounting hole spacing (A): 28.6 mm on the Hitec HS-55 RC servo, against 47.8 mm on the Hitec HS-311.
• Mounting hole diameter (dh): 2 mm on the Hitec HS-55 RC servo, against 4.5 mm on the Hitec HS-311.

Other sizes

• One size larger: Standard RC Servo, Hitec HS-311, standard servo, case 40 × 20 × 36.5 mm, ears 52.8 mm, 4.5 mm mounting holes 47.8 mm apart.

Documents

• CC-SERVO-DS-HITEC-HS55.pdf: hitec-hs55 datasheet: values with levels, sources
• CC-SERVO-SZ-hitec-hs55.pdf: hitec-hs55 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

hitec-hs55-drawing, hitec-hs55-lite-spec, hitec-hs55-product, hitec-hs55-spec-jp, hitec-hs55-spec-jp-figures. Full citations: the method page and this size's datasheet.

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