Product Details
Power Tool Gear For 7mm Rechargeable Hand Electric Drill
In a Hand Electric Drill, gears play a crucial role in transmitting
and controlling the rotational motion generated by the electric
motor to the chuck assembly. Their general functions include the
following:
Speed Control: Gears in a hand electric drill enable speed control
by changing the gear ratio between the motor and the chuck
assembly. By altering the gear ratio, the rotational speed of the
chuck can be adjusted to suit different drilling or fastening
requirements. A higher gear ratio will result in higher rotational
speed, while a lower gear ratio will provide more torque.
Torque Generation: Gears in the drill gear train allow for torque
multiplication. The electric motor typically operates at high speed
but relatively low torque. The gears help transfer and amplify the
torque from the motor to the chuck assembly, allowing the drill to
exert sufficient force for drilling or driving screws.
Direction Control: Some hand electric drills offer reversible
functionality, allowing the user to switch between forward and
reverse rotation. Gears with a specific design, such as helical
gears or planetary gears, facilitate this direction control by
altering the gear engagement and transferring motion in the desired
direction.
Power Transmission: The gears in a hand electric drill transmit the
power generated by the electric motor to the chuck assembly. They
ensure that the rotational motion is efficiently transferred from
the motor to the drill bit or other tool attachments, allowing for
effective drilling or fastening operations.
Mechanical Stability: Gears provide stability and support to the
overall drill mechanism. They help maintain proper alignment and
reduce vibration during operation, enhancing the precision and
effectiveness of drilling or fastening tasks.
Hand electric drills, also known as power drills or corded drills,
typically employ a gear system to transmit and control the
rotational motion generated by the electric motor. The gear system
in a hand electric drill serves several important functions,
including speed control and torque multiplication. Here are the key
gears commonly found in hand electric drills:
Motor Gear: The electric motor in a hand electric drill is
connected to a small gear, often referred to as the motor gear or
pinion gear. This gear is directly driven by the motor shaft and
serves to transmit the motor's rotational motion to the rest of the
gear train.
Spur Gears: Hand electric drills commonly use spur gears in their
gear train. Spur gears have straight teeth that are parallel to the
gear axis. These gears help transmit torque and rotational motion
from the motor gear to the chuck assembly.
Intermediate Gears: In some hand drills, there may be one or more
intermediate gears in the gear train. These gears are used to
change the direction of rotation or to adjust the speed and torque
output of the drill. They are often positioned between the motor
gear and the final output gear.
Output Gear: The output gear is connected to the chuck assembly of
the drill. It is responsible for transferring the rotational motion
and torque to the drill bit or other tool attachments. The size and
number of teeth on the output gear can affect the speed and torque
characteristics of the drill.
Speed Control: Hand electric drills often feature variable speed
controls to adjust the rotational speed of the drill bit. This is
typically achieved through a mechanism that changes the engagement
between the motor gear and the intermediate or output gears. By
adjusting the gear engagement, the speed of the output gear and the
chuck assembly can be varied.
Product | 7mm Rechargeable Hand Electric Drill |
Drawing Number | GRC5 |
Number of Teeth (Z) | Z=10 |
Transmission Efficiency | / |
Teeth Accuracy Grade | ISO 6-7 Grade |
Module (M) | / |
Service | Customized |
Company Profile
Our company was formerly known as Changsha Double Star Gear
Industrial Co., Ltd, which was established in 1994. It is a
directly affiliated university-run enterprise founded by Central
South University Professor Zeng Tao, the leading expert on spiral
bevel gears in China. It was later renamed as Changsha Senjie Gear
Co., Ltd (abbreviated as "CSG") in 2016. CSG is a production
R&D base specializing in professional design, reserch,
manufacture and sales of high-quality small module spiral bevel
gears and high reduction hypoid gears and cylindrical gears. In
2023, Hunan Dinghan New Material Technology Co., Ltd. was
established as a specialized international export business
department. CSG has strong scientific research and development
capabilities and is also equipped a full set of advanced equipment
including seven-axis five-linkage CNC spiral bevel gear grinding
machines and gear milling machines. By making the best use of the
scientific and technological achievements and equipment of the Gear
Research Institute of Central South University, machanical
processing, heat treatment and testing. We have developed
high-quality products featuring high reduction, high speed, heavy
load, low noise and less teeth for users.
With the quality policy of "scientific and technological
innovation, quality first, being first-class firm and customer‘s
satisfaction", we have won the trust of well-known domestic and
abroad enterprises with stable and excellent quality. It is
committed to be a pioneer of the industry of China's small-module
spiral bevel gears, and is dedicated to providing service for any
related industry requiring industrial robots, CNC turning and
milling compound power tool turrets, industrial sewing machines,
reducers, bicycles, power tools and aeromodelling. We sincerely
look forward to your cooperation!