W'M' BERG

1
W.M. BERG
2
Product training
3
PRODUCT OVERVIEW

• Gears and gear boxes
• Belts chain drives
• Linear assemblies
• Coupling and clutches

4
Gears and Gears boxes
5
Gears
SPUR GEARS

• Medium to High Power to Weight Ratio
• High Efficiency Range
• Available in several different pitches
• Available in 3 Different Hub Designs
• Available in 4 Different Materials
• Aluminum, Stainless Steel, Bronze Plastic

RACKS

• Design Allows the Conversion of Rotary
• Motion to Linear or Vice Versa
• Available in Round or Rectangular Design
• Available in 11 Different Pitches

6
HELICAL GEARS

• Medium to High Power to Weight Ratio
• Low to High Efficiency Range
• Available in LH or RH Configuration
• Allows for the Design of Parallel or
  
  Right Angle Shafts
• Available in 5 Different Pitches

7
WORM GEARS

• Worm Gears set are a Special Variation of Helical
  Gear
• High Power to Weight Ratio
• 90 Shaft configuration
• Worm is an Equivalent V-Type Screw Thread
• Single or Multiple Starts/Threads
• Design Allows for High Velocity Ratios
• Designed as a Single Enveloping (Throat on Worm
  Wheel)
• Available in 5 Different Pitches (16-64 D.P.)

8
GEARS
ANTI-BACKLASH

• Split Face Design
• Utilizes Springs as the Tensioning Load
• Available in Spur, Miter and Worm
• Available in a Variety of Pitches and
  Configurations

INTERNAL

• Special Variation of Spur Gear
• Design Allows for Planetary Configuration
• Design Allows for Compact Spur Ratios
• Available in 7 Different Pitches (24-120 D.P.)

9
MITER/BEVEL GEARS

• Tapered Tooth Form Design, manufactured on a Cone
  Shape
• Medium Power to Weight Ratio
• Right angle operation
• Available in several Different Pitches

10
GEARBOXES
MITER/BEVEL

• Low Backlash (Anti-Backlash Available
• Available as a Single or Double Shaft End style
• Available in various different styles
• Available in 3 different shaft Sizes 1/8, 3/16
  1/4 diameters

11
GEARBOXES
SPEED REDUCERS

• Utilizes Worm Gear Helical Gear Design
• Low Backlash (Anti-Backlash Available)
• Available with Ball or Bronze Bearings
• Available in 48 or 64 Pitch
• Ratios up to 1201

12
GEARBOXES
Inline Speed Reducers

• Spur Gear Design
• Compact Design
• Low Backlash (Anti-Backlash Available)
• Low Start Up Torques
• Available in 3 Different Sizes
• Available in Ratios up to 36001

13
APPLICATIONS
Printer Head
Print Head
Medical Biopsy Scanner
Medical Biopsy Scanner
14
BELT CHAIN DRIVES
15
MOLDED BELTS

• Molded Polyurethane, 90A Duro
• 303 S.S Core
• Zero backlash (Except for Flex-E-Grip
  Powe-R-Vee)
• Lightweight
• Self Lubricating
• Infinite Lengths
• Field Spliceable
• Aramid Fiber Core Alternative (50 derated)

16
BELT CONSTRUCTION
Reverse Bending Anti-Static

• Fiber Cable Construction
• Greater flexibility
• Longer life under reverse bending

17
MOLDED BELTS
FLEX-E-GEAR, GCF SERIES

• Uses Standard Gear Pitches
• Sprockets can be Machined to AGMA Specs
• Double Spine Belt Allows for Higher Loads
• Available in 4 Different Pitches

FLEX-E-BELT, GBF SERIES

• Uses Standard Gear Pitches
• Single Spine Belt Allows for Greater
  
  Transverse Flexibility
• Allows for 7 degrees Misalignment
• 4 Different/3 different Pitches Available

18
MOLDED BELTS
MIN-E-PITCH CBF, DCF, TDF, CCF SERIES

• Single spine Construction for Flexibility
• Double/Triple spine Construction for Higher
  Torque Transmission
• 3-D Belt (TDF Series) will Transmit Speed/Torque
  at odd 90? angles

FLEX-E-PITCH, CCF SERIES

• Uses Standard Roller Chain Pitches
• Interchangeable with Metal Roller Chains
• Double Spine Construction for Moderate Torque
  Transmission
• Available in 4 Different Pitch Configurations

19
MOLDED BELTS
FLEX-E-GRIP, TB SERIES

• Uses Standard Timing Belt Pitches
• No Walk Design Eliminates need for
  Flanges on Pulleys
• Can replace Standard Timing Belt designs
• Available in 4 Different Pitch Configurations

POWE-R-VEE, V SERIES

• Uses Standard V-Belt Sizes
• Can Tolerate Greater Variation in the Angle of
  the Sheave Groove
• Single Spine Design allows for Increased
  Pulley Misalignment
• Available in 4 Different Sizes

20
TIMING BELTS PULLEYS

• Available in either Fiberglass Reinforced
  Neoprene or Polyester Reinforced Urethane
• No Lubrication required
• Positive Drive
• Trapezoid Profile for Inch Pitches HTD Profile
  for Metric Pitches

21
TIMING BELTS PULLEYS
MAX-M-DRIVE

• High Ratios Available
• High Speeds Allowed
• High Power Transmission Allowed
  
• Long Life
• Available in 4 Different Pitches

22
CHAIN SPROCKETS
ROW-L-ER STEEL SERIES

• Stainless Steel Construction
• High Tensile Loads
• Long Life
• Hostile Environments
• Available in 4 Different Pitch

• Lightweight
• Field Spliceable
• Snap Lock Construction
• Available in 2 Different Material
• Available in 3 Different Pitch

23
BELT CHAIN DESIGN CONSIDERATIONS
CENTER DISTANCES
L2C1.57(Dd)(D-d)? 4C
Where
LBelt Length CCenter Distance DP.D. Of
Large Sprocket or O.D. Of Large Pulley dP.D. Of
Small Sprocket or O.D. Of Small Pulley
X(1/64)C
TENSIONING
Where
XMeasured Deflection CCenter Distance Applied
with 5 of Ultimate Load
24
APPLICATIONS
Plotter Head
Printer Head
Medical Scanner
Vending Machine
25
Gears vs. Sprocket/Belts

• Gears
• Prolonged life time
• Higher torque transmission
• Higher operating temperatures (metallic gears
  only)
• Limited space high ratios
• 90 shaft alignment over limited space
• Counter directional motion

• Sprockets/Belts
• Odd angle shaft drives
• Higher RPMs
• Zero-backlash
• Unidirectional motion
• Higher shaft misalignments
• Fixed shafts configurations

26
COUPLINGS CLUTCHES
27
COUPLINGS
28
COUPLINGS
Sleeve Couplings

• Solid Coupling Group
• High Torque Transmission to Weight Ratio
• Bore Sizes Available from 5/64 (3mm) to 1/2
  (12mm)

Multi - Jaw Coupling

• Solid Coupling Group
• High Torque Transmission to Weight Ratio
• Easy Disassembly
• Bore Sizes Available from 1/8 (3mm) to 1/2
  (12mm)

29
COUPLINGS
Six, Three and Single beam

• Zero Backlash
• Medium Torque to Weight Ratio
• Single Piece Construction
• Bore Sizes Available from 3/32(2mm) to 1 (25mm)
• Variety of Materials Available

30
COUPLINGS
Bellows

• Zero Backlash
• Low Torque to Weight Ratio
• Bore Sizes Available from 1/8 (3mm) to 1/2
  (12mm)

Wafer Spring

• Zero Backlash
• Medium Torque to Weight Ratio
• Bore Sizes Available from 1/8 (3mm) to 1/2
  (12mm)

31
COUPLINGS
Neo-Flex

• Shock Absorbing Group
• Medium Torque to Weight Ratio
• Excellent Electrical Insulation
• Excellent Vibration Damping
• Available in Bore Sizes from 3/16 (5mm) to 5/8
  (16mm)

Spider

• Shock Absorbing Group
• Medium Torque to Weight Ratio
• High Parallel Misalignment Allowed
• Available in Bore Sizes from 1/8 (3mm) to 1/2
  (12mm)
• Variety of Materials Available

32
COUPLINGS

• Shock Absorbing Group
• Excellent Electrical Insulation
• Excellent Vibration Damping
• Available in Bore Sizes from 1/8 (3mm) to 1/2
  (12mm)

Absorbathane
33
COUPLINGS
Oldham

• High Torque to Weight Ratio
• Medium Parallel Misalignment Allowed
• Bore Sizes Available from 1/8 (3mm) to 5/8
  (16mm)

Universal lateral

• Medium Torque to Weight Ratio
• Variety of Bore Sizes Available
• Medium Parallel Misalignment Allowed
• Med. Angular Misalignment Allowed
• Bore Sizes1/8 (3mm) to 5/8 (16mm)

34
COUPLINGS
Flex-thane

• High Torque to Weight Ratio
• Excellent Electrical Insulation
• Bore sizes 1/8(3mm) to 1/2 (13mm)

Flexible Shaft Couplings

• High Torque to Weight Ratio
• Available in Diameter Sizes from 5/32 to 1/2
• Bore Sizes from 3/16 to 1/2

35
COUPLINGS

• High Torque to Weight Ratio
• Available in Single, Double telescopic Joint
• Bore Sizes 1/8 (3mm) to 1/2 (10mm)

Universal Joint
36
CLUTCHES
Friction Type Clutches

• Shaft to component
• Friction Pad Design to Slip or Grip
• Adjustable torque 0-10 oz.in, 10-50 oz.in
• Available in different styles bore sizes

Spring Type Clutches

• Shaft to component or shaft to shaft
  configurations
• Bi-directional
• Adjustable torque
• 4.8-160 in.oz close style
• 8-400 in.oz open style
• Several bores size available

37
APPLICATIONS
Printer Heads
PC Assembly Device
Medical Biopsy Device
38
LINEAR ASSEMBLIES
39
LEADSCREWS

• Transmits Rotary Motion in Linear Motion
• Screw Materials available 400 S.S 6061Al
• Available in a Variety of Diameters (Pitch
  Diameters) and Leads
• Very Small Lead Errors and Repeatability
• High Efficiency assemblies

40
LEADSCREW

• Nut designs Round, Rectangular Anti-Backlash
• Material Delrin
• No Additional Lubrication Required
• Round Rectangular Nut Designs Allow for .003 of
  Backlash Maximum
• Anti-Backlash Nut Design Allows for Zero Backlash

41
LEADSCREW

• Round Rectangular Nut Designs Allow for .003 of
  Backlash Max
• Anti-Backlash Nut Design Allows for Zero Backlash
  
• Anti-Backlash Nut Design Incorporates Split Nut
  Theory

• Anti-Backlash Nut Design Uses Flanges to Keep
  Assembly Together off the Screw
• Different Springs May Be Designed for Higher or
  Lower A/B Loads

42
SLIDES

• Rolling Friction Instead of Sliding Friction
• Low Coefficient of Friction
• Low Straightness Error with High Repeatability
• Offered in Ball or Roller Design

43
BALL ROLLER SLIDES
Ball Slides

• Self Cleaning due to Point Contact of
  Sub-Components
• Smaller Profiles Achievable due to Smaller
  Interior Sub-Components
• Variety of Sizes Travels
• Available with Racks

Roller Slides

• Higher Load Capacity due to Line Contact of
  Sub-Components.
• 5 times Higher than Ball Slides
• Higher Overhung Load Capacities and Lower Axial
  Play Possible due to Line Contact of
  Sub-Components
• Variety of Sizes Travels

44
Applications

• Aircraft Instruments Controls
• Autopilot devices
• Automatic Test Equipment
• Calibration equipment
• Telecommunications
• Data Processing
• Dental Instruments
• Instrumentation
• Laser Printers
• Machine Tool Making

• Medical Diagnostic Equipment
• Surgical Robots
• Computer Drives
• Missile Control
• Navigation Instruments
• Office Automation Equipment
• Photographic Equipment
• Optical Equipment
• Manufacturing Equipment Controls