Pin gear drive unit

Product photo
  • A way to reduce costs for rotating and linear drives.
  • Tsubaki Pin Gear Drive Units are a new drive system that replace gears and racks.
  • Consisting of a pin wheel and rack, and a gear with a unique tooth profile, Pin Gear Drive Units offer limitless design possibilities for rotating and linear drives.
  • *Easy to install. :Uses a segmented system for easy installation. Rough mounting precision is allowed.
  • *Large transmission torque :Pin gears are designed as modules with some leeway. The right balance between pin wheels and racks allow them to generate large transmission torque.
  • *Can be used on large equipment :Just increase the number of wheel segments to enable use on large equipment drives.
  • *Large sizes perfect for the steel industry are now available. :They outperform large gears in terms of cost and tangential force.
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Catalogs ・Instruction Manuals

Configuration

Pin gear drive unit consists of a pin gear and engaging pin rack (or pin wheel).

Features

Easy installation, rough mounting allowed

  • ・All pins used in the pin rack and pin wheel are hollow pins, allowing you to easily install the unit using the holes.

Segmented unit configuration accommodates large size machines

  • ・By jointing the racks, the pitch distance can be maintained and the unit can be connected, enabling long distance linear drives.
  • ・Pin wheels for large machines are assembled in segments, so large diameter pin wheels are available by combining the segments.

Downsizing is possible compared to chain systems

Pin wheel

Construction

The pin gear has specially-shaped teeth to continuously and smoothly engage rollers.
The tooth portion is hardened for additional strength and wear strength.

Construction

Tooth profile exclusively for pin gear

The pin gear tooth profile is based on an approximate involute curve, which enables smooth engagement with the pin rack/wheel, while also using a Tsubaki original tooth profile for further strength.

Tooth profile exclusively for pin gear

Model No. examples (In case of linear drives )

Pin rack

PDU050 - S P A 080P - R

Frame number


Pin rack


No. of pins

Package
No symbol :Standard series (Steel)
R:Advanced rust protection series (Steel)
S:Standard series (Stainless steel)

Drive Method
S:Linear drive

Mounting type
F:Horizontal installation (Flat type)
A:Vertical installation (Angle type)

Pin gear

PDU050 - S G B 014T - R

Frame number


Pin gear


Number of teeth

Package
No symbol :Standard series (Steel)
R:Advanced rust protection series (Steel)
S:Standard series (Stainless steel)

Drive Method
S:Linear drive

Pin gear style
B:Single hub
C:Dual hub

Model No. examples (In case of rotating drives )

Pin wheel

・Entire circumference

PDU070 - G P F 300P - R

Frame number


Pin wheel


No. of pins

Package
No symbol :Standard series (Steel)
R:Advanced rust protection series (Steel)
S:Standard series (Stainless steel)

Drive Method
G:Outer rotary drive
N:Inner rotary drive

Mounting type
F:Horizontal installation (Flat type)

・Partial circumference (less than 360º)

PDU070 - G P F 300P 090P - R

Frame number


Pin wheel


No. of pins

No. of pins required

Package
No symbol :Standard series (Steel)
R:Advanced rust protection series (Steel)
S:Standard series (Stainless steel)

Drive Method
G:Outer rotary drive
N:Inner rotary drive

Mounting type
F:Horizontal installation (Flat type)

Pin gear

PDU070 - G G C 017T 300P - R

Frame number


Pin gear


Number of teeth

No. of pins for pin wheels

Package
No symbol :Standard series (Steel)
R:Advanced rust protection series (Steel)
S:Standard series (Stainless steel)

Drive Method
G:Outer rotary drive
N:Inner rotary drive

Pin gear style
B:Single hub
C:Dual hub

Package

You can select the pin gear drive unit specifications from between the standard series (steel type) and S series (stainless steel type) according to your operating environments.

Standard specifications
Frame number Pitch
mm
Allowable tangential load kN
Steel type Stainless steel type
PDU020204.70.8
PDU022227.71.1
PDU0303012.81.9
PDU0353519.52.6
PDU0404027.34.1
PDU0505031.75.1
PDU0555552.97.0
PDU0707060.79.9
PDU0808071.512.0
PDU0909098.916.8
PDU120120122.5---
PDU150150240---
PDU180180347---
PDU240240525---
※The pitch of the pin wheel is a circular pitch.
※The allowable tangential loads will decrease depending on specifications/usage conditions.
Steel type Stainless steel type
Max. operating speed Tangential velocity :50m/min
Operating environments Indoors (away from rain and water) Corrosive environments
Operating temperature ‐10℃~150℃ ‐20℃~400℃
Material Frame Rolled steel Austenitic stainless steel
Bush Alloy steel Precipitation hardened stainless steel
Roller Alloy steel Austenitic stainless steel
Pin gear Carbon steel (hardened teeth specifications) Austenitic stainless steel
Backlash (reference values) and distance accuracy between shafts
Frame number Steel type Stainless steel type
Backlash
mm
Distance accuracy between shafts
mm
Backlash
mm
Distance accuracy between shafts
mm
PDU0200.26~0.47±0.250.26~0.47±0.25
PDU0220.32~0.57±0.30.32~0.57±0.3
PDU0300.32~0.66±0.40.32~0.67±0.4
PDU0350.33~0.88±0.50.33~0.88±0.5
PDU0400.41~0.86±0.60.41~0.86±0.6
PDU0500.53~0.98±0.70.53~1.08±0.7
PDU0550.61~1.06±0.750.61~1.26±0.75
PDU0700.86~1.24±0.90.86~1.61±0.9
PDU0800.89~1.20±10.89~1.74±1
PDU0900.97~1.42±1.20.97~1.92±1.2
PDU1201.30~1.57±1.6------
PDU1501.63~1.96±2------
PDU1801.95~2.36±2.4------
PDU2402.60~3.14±3.2------
※The above amount of backlash in mm is a calculated value and not a guaranteed value. Also note that the backlash amount varies due to wear of the pin gear drive unit and the pin gear.

New Advanced Rust Protection Series

Line-up of high rust prevention specifications with improved corrosion resistance by special surface treatment.
Each part has been optimally treated for rust protection, which provides strong anti-rust performance in severe environments such as outdoors, around water, or in coastal areas.

・Application examples :Vertical tower parking, large transport trolleys, casting lines, water gates, etc.
・Users can select the same size as they would with the standard series since the allowable tangential loads are the same.
・Made to order

New Advanced Rust Protection Series

Flexible Type

Pin Gear Drive Unit Flexible Type with wider center-to-center distance tolerance than before and wider gap between pin rack/pin wheel and pin gear has been lined up.
It is effective not only for devices with strict mounting accuracy but also when the installation position changes during operation due to thermal expansion, etc.

・Application examples :Kiln dryer, earth-moving machine.
・Allowable tangential load is lower than standard series. Refer to the leaflet for selection.
・Made to order

Special backlash specifications  (These specifications differ from standard allowable tangential loads. )

Large backlash specifications

 Large backlash enables easy mounting.


Small backlash package

 Can reduce backlash. (2/3 of standard backlash  Available frame no. :PDU020~PDU120)


Lubrication

Before operation, apply extreme pressure grease to the outer peripheries of all rollers. Inner surfaces of the pin wheel/pin rack rollers are pre-lubricated.
Contact us when using in an atmosphere where lubricating grease cannot be used, such as underwater use, or in a high-temperature atmosphere at 130℃ or higher.

Installation method

Pin wheel & pin rack flat type

Using hollow pins, the holes can be used to fix the side face to another device with bolts.
On installation, you can decide the position by setting up a stopper or guide on the convex face.

Pin rack angle type

The angle-style straight line rack can be fixed to another device by using the tightening bolt holes for fastening.

Detailed Information

Use the link buttons below for detail information regarding pin wheel, pin rack and pin gear.