CHIHAI 480 Brushed DC Motors | Model & Shaft Options

Overview

These CHIHAI MOTOR 480-format brushed DC motors offer model-specific windings, shaft lengths, pinions and magnet materials for compatible hobby mechanisms. Select the numbered model using its dimensions and electrical requirements. The separate 32.5 mm shaft-sleeve option is a two-piece accessory pack and contains no motor.

Features

Long- and short-shaft motor configurations with distinct overall lengths.
Model-dependent ferrite or rare-earth magnet construction.
Ball-bearing support, with vented or closed motor housings depending on the model.
MIM D-bore or powder-metallurgy pinions as specified in the model table.
Separate two-piece shaft-sleeve accessory option.

Specifications by Motor Model

Speeds below are model-specific voltage references. Overall length includes the shaft and pinion. The standard body-length reference is 45.5 mm; the 115# reference is 46 mm. Do not treat one numbered motor's performance as the specification for every option.

Model	Speed at 11.1 V(rpm)	Speed at7.4 V(rpm)	Shaft projection(mm)	Overall length(mm)	Width reference(mm)
49#	34000	22000	30.5	88	29.5
50#	41000	22000	30.5	88	29.5
51#	48000	31500	30.5	88	29.5
52#	40000	22000	30.5	88	29.5
53#	30000	20000	30.5	88	29.5
54#	36000	23000	30.5	88	29.5
55#	35000	23000	30.5	88	29.5
56#	30000	20000	30.5	88	29.5
57#	31000	20000	30.5	88	29.5
58#	31000	20000	30.5	88	29.5
59#	36000	23500	30.5	88	29.5
102#	32000	21000	15.5	74	29.5
109#	31000	20000	15.5	74	29.5
110#	35000	23000	15.5	74	29.5
111#	35000	23000	30.5	88	29.5
112#	31000	20000	30.5	88	29.5
113#	32000	21000	30.5	88	29.5
115#	34000	22000	30.5	88.5	30
61#	Not confirmed	Not confirmed	30.5	88	29.5

Model	Magnet construction	End cap	Pinion
49#	Wet-pressed ferrite	Heat-resistant nylon	MIM steel, D-bore
50#	Wet-pressed ferrite	Heat-resistant nylon	Powder-metallurgy alloy
51#	Wet-pressed ferrite	Heat-resistant nylon	Powder-metallurgy alloy
52#	Wet-pressed ferrite	Heat-resistant nylon	MIM steel, D-bore
53#	Wet-pressed ferrite	Heat-resistant nylon	Powder-metallurgy alloy
54#	N10 bonded rare-earth reference	Heat-resistant nylon	MIM steel, D-bore
55#	Wet-pressed ferrite	Heat-resistant nylon	Powder-metallurgy alloy
56#	Wet-pressed ferrite	Heat-resistant PPS	Powder-metallurgy alloy
57#	Wet-pressed ferrite	Heat-resistant nylon	Powder-metallurgy alloy
58#	Wet-pressed ferrite	Heat-resistant nylon	Powder-metallurgy alloy
59#	Wet-pressed ferrite	Heat-resistant nylon	MIM steel, D-bore
102#	N35H NdFeB	Heat-resistant nylon	MIM steel, D-bore
109#	N35H NdFeB	CNC aluminum alloy	MIM steel, D-bore
110#	N35H NdFeB	CNC aluminum alloy	MIM steel, D-bore
111#	N35H NdFeB	CNC aluminum alloy	MIM steel, D-bore
112#	N35H NdFeB	CNC aluminum alloy	MIM steel, D-bore
113#	N35H NdFeB	Heat-resistant nylon	MIM steel, D-bore
115#	N45SH NdFeB	CNC aluminum alloy	MIM steel, D-bore
61#	Wet-pressed ferrite	Heat-resistant nylon	Powder-metallurgy alloy

The 49# / CHF-480SA-11340 reference measures 29.5 ×25.2 ×88 mm and weighs approximately138 g. Other models differ. The 61# motor's speed is not confirmed here; verify its exact electrical specification before selecting an operating point.

Electrical Performance References

49# / CHF-480SA-11340 at 11.1 V

Operating condition	Speed	Current	Torque	Output / efficiency
No load	34,000 rpm	2.30 A	—	—
Stall	0 rpm	109.6 A	272 mN·m	Not a continuous operating point
Maximum efficiency	29,689 rpm	15.84 A	34.49 mN·m	107.3 W /61.03483%
Maximum output	17,000 rpm	55.68 A	136 mN·m	242.2619 W /39.19%

Additional Model References at 11.1 V

Model	No-load speed(rpm)	No-load current	Stall torque	Stall current
102#	32000	2.80 A	232 mN·m	69.2 A
109#	31000	2.8 A	5134.3 gf·cm	167.371 A
110#	35000	3.0 A	247.45 mN·m	89.67 A
111#	35000	3.0 A	247.45 mN·m	89.67 A
112#	31000	2.8 A	5134.3 gf·cm	167.371 A
113#	32000	2.80 A	232 mN·m	69.2 A
115#	34000	3.50 A	462 mN·m	152 A

Stall torque and current describe a blocked-rotor condition, not continuous operation. Maximum-output and maximum-efficiency values refer to different operating points. Use a supply, wiring and switching path suited to the selected motor and load; avoid stalling.

Installation and Connection

Confirm shaft projection, pinion engagement, motor outline and terminal clearance before installation. Use2.8 mm spade-terminal connections where specified; avoid soldering directly to the motor terminals. The illustrated49# terminal view identifies the red-marked terminal as positive and the opposite terminal as negative. Check the actual selected motor before connection.

The reference motor includes a shaft sleeve, spring and pinion as photographed. The exact end cap, housing openings, shaft and pinion vary by numbered option. Do not infer that every variant has the same venting or magnet material.

Configuration Guide

Select a motor by its exact model number, shaft dimensions and operating voltage. Short-shaft102#,109# and110# references have15.5 mm shaft projection and74 mm overall length. The long-shaft references are generally30.5 mm projection and88 mm overall length;115# is88.5 mm overall. Confirm fit against the intended mechanism rather than relying on the 480 size name alone.

Applications

For compatible hobby and model mechanisms requiring a 480-format high-speed brushed motor. Match the chosen motor's mechanical fit, supply, switching system and load. No particular gearbox, controller, battery or other equipment compatibility is guaranteed by the format name.

What's Included

Selected option	Contents
Numbered motor option	1 × selected motor with the shaft/pinion/spring configuration shown in its corresponding option photo
480 Shaft Sleeve,32.5 mm Long(2pcs)	2 × shaft sleeves; no motor

Power supplies, batteries, controllers and connection leads are not included. Accessory photos may show two views of the same sleeve design; the selected accessory pack quantity is two pieces.