DYMATIC, INC
5328 N. Northwest Hwy.
Chicago, IL 60630-1137 USA
TEL:  
773-763-2100 FAX: 773-763-6877





                                Our 20th year  of
 Selling "Surplus Inventories, at Surplus Prices"

 .
For Price and Delivery
E-mail us at: sales@oemsurplus911.com or Call Us at: 773-763-2100
.

Home Index by Mfg Hydraulics Pneumatics Automotive Electrical Filters Casters About Us

Index by Mfg.

Aeroquip
Airroyal Cylinders  
Allen Bradley
Alco Valve
Al Xander / AXCO
Allied Witan
American Coupling
American Heat Exch.
Ametek / US Gauge
Anchor Fittings
Aro Modernair
Aschroft Gauge
Aschroft / Dresser
Atlas Cylinders
Autoclave Eng.
Barksdale
Bendix Aerospace
    / Lucas

Bearings
Bijur
Bimba
Bodine Motors
Borg and Warner
Brand Hydraulics
Brown & Scharpe
Browning
Brunning Parker
C.A. Norgren
Cessna
Char- Lynn
Circle Seal
Commercial Shearing

Continental Hyd.
Cross Mfg.
Daman Subplate
Danfoss
Data Logic
Delta Power
Deltrol
73 Mfg. Co.
Denison Hydraulics

Detroit Coil
Double A Hydraulics
Dowty
Duff Norton
Dwyer
Eastern / LFE
Enerpac
Facet Filters
Fairchild
Firestone
Fischer & Porter
Fram Filters
Gates Fittings
Generant
Gresen
Haenni Gauges
Hedland
Helicoide
Hi-Flex Fittings
HTC
Hub City
Hycon
Hydreco
Hydro-Craft
Imperial Eastman

Jaco
Kebby Tank Acc.
Keystone Valves
Legris
Lenz Fittings
Lenz Filters
Lenz Gauges
Lexair / Airmatic
LittleFuse
Lha
Lube Devices
Lucas / Bendix
Main Flanges
Manastrip
Microswitch
NCC
Norgren
Norman Filters
  (Ultraporous)
Numatics
Nycoil
Oil Dyne
Oil Gear / Hydura

Parker Hydraulics
Parker Fittings
Perfecting
Pepperl & Fuchs
Plast-O-Matic
Prince
Purolator
Racine
Refilco
Rexroth
Ringfeder
Ross - TRW
Schroder
Squre D
Skinner Valves
Skinner Parts
Snap-tite Couplings
Snap-Tite Valves
SOR
Specialty Products
Sta-rite
Strahmann Valves
Stratoflex Fittings
Sauer Sundstrund
Suntech-
         Sundstrand
Swagelock Fittings
Synflex Fittings
Telemecanique
Tyrone
UCC
Ultraporous Filters
U.S. Gauge
Utec
Veriflo
Versa
Vican Pumps
Vickers
Viking
Watts Regulator
Weatherhead
Weschler / NES
White
Young Radiators
Zinga
Zycron

Ringfederkeyless, shaft-hub locking devices

Ringfeder�  Locking AssembliesTM  RfN 7012 & RfN 7012-IN
Ringfeder� Locking AssembliesTM are completely self-contained, frictional shaft-hub locking devices. Designed to generate an easily adjustable and releasable mechanical shrink-fit, they have been used successfully for many years in heavy-duty applications to transmit high torques and dynamic loads and to provide timing and releasability. Locking Assemblies RfN 7012 These are the original Ringfeder� Locking Assemblies featuring doubletapered thrust rings with selfreleasing tapers. They bridge relatively large fit clearances, areeasy to install, adjust or remove, but are not self-centering. A precentering hub section is usually required. These units are most commonly used on applications in general engineering to transmit high torques and axial loads utilizing larger machining tolerances.
Working Principle
Ringfeder� shaft-hub locking devices are based on the inclined plane or taper principle.
Clamping forces generated by torqued up locking screws are translated into predetermined
contact pressures so as to create mechanical shrink-fit connections.

Advantages
� Elimination of keys, keyways or splines and associated fitting costs
� Completely tight fit around shaft � no backlash
� Impervious to reversing, dynamic or shock loads
� Transmission of high torques and axial loads

Benefits
Reduced machining costs
� Easy installation, assembly and disassembly
� Easy axial and angular adjustments and timing
Applications
Ringfeder� frictional shaft-hub locking devices have successfully solved shaft-hub connection problems involving:
Gears Rolls Cams
Levers Winches Sprockets
Flanges Couplings Brake drums
Sheaves Flywheels Hand wheels
Clutches Fan wheels Worm gears
Bevel gears Helical gears Mixer shafts
Crane wheels Bucket wheels Pump impellers
Turbine rotors Conveyer pulleys Ship propellers
Windmill propellers Rock-cutting heads Shaft-mounted gear units
Picture Part Number

MA=
Kpm/ ft-lbs

Nominal
I.D. (in.)
Nominal
O.D. (in.)
In Stock
Qty
22 RfN 7012
22 RfN 7012-IN
1,4 / 10.13 0.866 1.850 12
35 RfN 7012
35 RfN 7012-IN
1,4 / 10.13 1-3/8 2.365 12
40 RfN 7012
40 RfN 7012-IN
1,4 / 10.13 1-1/2 2.559 41
65 RfN 7012
65 RfN 7012-IN
3,5 /  - 2-9/16 3.737 7
70 RfN 7012
70 RfN 7012-IN
7,0 / 50.63 2-3/4 4.337 3
75 RfN 7012
75 RfN 7012-IN
7,0 / 50.63 2-15/16 4.528 11
90 RfN 7012
90 RfN 7012-IN
7,0 / 50.63 3-1/2 5.118 13
100 RfN 7012
100 RfN 7012-IN
12,5 / 90.41 3-15/16 5.708 12

 

 

Don't see it here ????    Call 773-763-2100

We have more items in stock than we are able to list !
If you don't see it on our site or would like price and delivery on an item
that you did see  
Call 773-763-2100
Fax   773-763-6877

 or  
e-mail
sales@oemsurplus911.com

 

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DYMATIC, INC.

5328  N. NORTHWEST HWY.
CHICAGO, IL 60630-1137
TEL:   773-763-2100
FAX:   773-763-6877

Due to the nature of our business, prices, specifications, availability's are subject to change without notice.
Manufacturers names and p/n's are used for reference only, and are the property of the companies.
Viton� is a registered trademark of DuPoint Performance Elastomers
Minimum order applies in some cases  !!!!!!