Page 97 - Goodyear2011PTCatalog

P O W E R T R A N S M I S S I O N P R O D U C T S B u s h i n g H a r d w a r e
95
B u s h i n g H a r d w a r e
2 0 1 1
G e n e r a l P r od u c t I n f o
• Sure-Grip bushings conform to the specifications set forth by
the Mechanical Power Transmission Association (MPTA) in their
CO-1 Guideline of October 1992.
• An “MPB” or “Minimum Plain Bore” bushing is available
in most bushing sizes. These bushings are unsplit and have no
keyway. These bushings are intended for reboring and other
alterations.
• Sure-Grip bushings for inch shafts conform to ANSI
B17.1-1967, R1989 for key size versus shaft diameter and keyway
dimensions. Square keys are used where possible. For larger
bores where a square key is not possible, the required rectangular
key is furnished with the bushing.
• Sure-Grip bushings for metric shafts conform to British
Standard HS 4235: Part 1:1972 for key size versus shaft
diameter and keyway dimensions. For larger bores where it is not
possible to maintain the standard keyway depth, a more shallow
keyway may be used. Special metric keys are not furnished with
the bushing.
M at e r i a l s
• The standard material is class 30 or higher cast iron. Products
made from cast iron have a maximum speed limitation of 6,500
foot/minute at the outside diameter. Higher speed requirements
dictate the use of higher strength materials.
• For speeds up to 16,000 foot/minute or high shock application
requiring greater toughness, special ductile iron products can
be made.
B a l a n c e
• The standard balance is a one-plane tolerance to a G26 quality
grade based on 3,500 RPM or the maximum rated speed. A two-
plane balance to a G6.3 quality grade is available at an added
cost. Sure-Grip bushed products which are one-plane balanced
are marked so the bushing can be reinstalled at the application
the same way it was installed for balancing. See MPTA SPB-95
for standard balancing practices.
S ta n d a r d s
• The following products meet or exceed the noted ANSI/RMA
design standards.
Classical V-Belt Sheaves IP-20-2007
Narrow V-Belt Sheaves IP-22-2007
Synchronous Belt Pulleys IP-24-2001
Curvlinear Boil Sprockets IP-27-2009
FHP Belts and Sheaves IP-23-2009
Hex Belts and Sheaves IP-21-2009
S p e c i a l C o n s t r u c t i o n s A va i l a b l e
• We have the capability to assist in your design and quote any
specially designed power transmission drive. We are able to offer
consistently competitive prices and fast delivery on the following
specials plus much more.
V-Belt Sheaves
- Nonstandard diameter requirements.
- Nonstandard number of grooves.
- Unusual hub configurations.
- Deep grooves.
- Metric grooves.
- Added inertia or flywheel effect.
Synchronous Sprockets
- Nonstandard number of teeth.
- Nonstandard face widths.
- Unusual hub configurations.
- Special tooth profiles.
- Added inertia of flywheel effect.
Flat Belt Pulleys
- Nonstandard diameter requirements.
- Nonstandard face widths.
- Unusual hub configurations.
- Split through rim or arm designs.
- All types of special crowns.
- Added inertia or flywheel effect.
- Taper cone arrangements.
Flywheels
- Flywheels per customer design.
S u r e - G r i p ®* B u s h i n g s
V- B e lt S h e av e s , S y n c h r onou s B e lt S p r o c k e t s ,
F l at B e lt P u l l e y s , e t c .
*Trademark of TB Wood’s Incorporated.