Types of
gear
1
Straight
spur
A spur is a lateral ridge or
tongue of land descending
from a hill, mountain or
main crest of a ridge. 2
Helical Spur
Helical gears last longer and are
ideal for high-load applications,
since they have a higher number
of teeth in contact. Load is at all
times distributed among several
axes, which produces less wear.
3
Herringbone
Used for transmitting power
between parallel shafts. It was
developed to overcome the
disadvantage of the high-end
thrust that is present with single-
helical gears.
4
Plain Bevel
Bevel gears are gears where the
axes of the two shafts intersect
and the tooth-bearing faces of the
gears themselves are conically
shaped.
5
Spiral Bevel
Spiral bevel gears are bevel gears
whose axes intersect, often at a
90-degree angle. The teeth are
cut with a slight curve along their
length and an involute profile.
6
Hypoid
Hypoid gears are normally used in
right-angle drives associated with
the axles of automobiles. Hypoid
gears are a unique category of spiral
bevel gears that are used to transmit
rotational power between two shafts
at right angles.
7
Planetary
Planetary gear sets are used in automatic
transmissions, and they include a ring
gear, planet carrier and sun gears.
Securing the sun gear or the planet
carrier produces different ratios. High
efficiency due to low rolling power. Almost
unlimited transmission ratio options due
to combination of several planet stages.
8
Worm
Used as high-ratio reductions to change
the direction of shaft rotation and to
decrease speed and increase torque
between non-parallel rotating shafts.
9
Rack and
Pinion
A rack and pinion are used when
converting rotational movement to linear
motion (or vice versa). It make good
actuators for quarter-turn butterfly and
ball valves where the arc of travel is
limited to a fixed angle such as 90°.
10
Special thanks 
Highest package of
12.00 Lakh/Annum is
provided
Organized event on
Renewable Energy
Sources under
BRIGHT IDEA
sponsored by CREDA
Signed Corporate
Training and
Placement TIE UPS
with Infosys Campus
Connect, Genpact,
Barclay (GTT), TATA
Technologies & HERE
Map (Nokia).
Received grant for
Workshops/Seminars
under TEQIP-III
11
RSR Rungta College of Engineering and Technology

Types of gear.pdf

  • 1.
  • 2.
    Straight spur A spur isa lateral ridge or tongue of land descending from a hill, mountain or main crest of a ridge. 2
  • 3.
    Helical Spur Helical gearslast longer and are ideal for high-load applications, since they have a higher number of teeth in contact. Load is at all times distributed among several axes, which produces less wear. 3
  • 4.
    Herringbone Used for transmittingpower between parallel shafts. It was developed to overcome the disadvantage of the high-end thrust that is present with single- helical gears. 4
  • 5.
    Plain Bevel Bevel gearsare gears where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped. 5
  • 6.
    Spiral Bevel Spiral bevelgears are bevel gears whose axes intersect, often at a 90-degree angle. The teeth are cut with a slight curve along their length and an involute profile. 6
  • 7.
    Hypoid Hypoid gears arenormally used in right-angle drives associated with the axles of automobiles. Hypoid gears are a unique category of spiral bevel gears that are used to transmit rotational power between two shafts at right angles. 7
  • 8.
    Planetary Planetary gear setsare used in automatic transmissions, and they include a ring gear, planet carrier and sun gears. Securing the sun gear or the planet carrier produces different ratios. High efficiency due to low rolling power. Almost unlimited transmission ratio options due to combination of several planet stages. 8
  • 9.
    Worm Used as high-ratioreductions to change the direction of shaft rotation and to decrease speed and increase torque between non-parallel rotating shafts. 9
  • 10.
    Rack and Pinion A rackand pinion are used when converting rotational movement to linear motion (or vice versa). It make good actuators for quarter-turn butterfly and ball valves where the arc of travel is limited to a fixed angle such as 90°. 10
  • 11.
    Special thanks  Highestpackage of 12.00 Lakh/Annum is provided Organized event on Renewable Energy Sources under BRIGHT IDEA sponsored by CREDA Signed Corporate Training and Placement TIE UPS with Infosys Campus Connect, Genpact, Barclay (GTT), TATA Technologies & HERE Map (Nokia). Received grant for Workshops/Seminars under TEQIP-III 11 RSR Rungta College of Engineering and Technology