FR2046637A5 - Polyurethane thrust pad for machine tool - chuck - Google Patents

Polyurethane thrust pad for machine tool - chuck

Info

Publication number
FR2046637A5
FR2046637A5 FR7017623A FR7017623A FR2046637A5 FR 2046637 A5 FR2046637 A5 FR 2046637A5 FR 7017623 A FR7017623 A FR 7017623A FR 7017623 A FR7017623 A FR 7017623A FR 2046637 A5 FR2046637 A5 FR 2046637A5
Authority
FR
France
Prior art keywords
machine tool
polyurethane
axial
chuck
thrust pad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7017623A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7017623A priority Critical patent/FR2046637A5/en
Application granted granted Critical
Publication of FR2046637A5 publication Critical patent/FR2046637A5/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/04—Devices for boring or drilling centre holes in workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B23/00—Tailstocks; Centres
    • B23B23/04—Live centres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/33—Elastomers, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/008—Bearings
    • B23B2260/0085—Needle roller bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/04—Centre drills of known configuration, e.g. the provision of a centre drill in centres or chucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/136—Springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A thurst bearing made of polyurethane rubber with a Japanese Industrial Standard (NIJ) hardness of 80 to 90 is used to support ball race thrust bearings on the axial rotor cone of a machine tool. Progressive absorption of peak thrust loads or axial thermal expansion movements, unlike washers or coil springs which set up if compressed sufficiently to eliminate their axial free volume. Use mentioned of rubber based on ethylene glycol, adipic acid and 1, naphthalene diisocyanate.
FR7017623A 1970-05-14 1970-05-14 Polyurethane thrust pad for machine tool - chuck Expired FR2046637A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7017623A FR2046637A5 (en) 1970-05-14 1970-05-14 Polyurethane thrust pad for machine tool - chuck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7017623A FR2046637A5 (en) 1970-05-14 1970-05-14 Polyurethane thrust pad for machine tool - chuck

Publications (1)

Publication Number Publication Date
FR2046637A5 true FR2046637A5 (en) 1971-03-05

Family

ID=9055532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7017623A Expired FR2046637A5 (en) 1970-05-14 1970-05-14 Polyurethane thrust pad for machine tool - chuck

Country Status (1)

Country Link
FR (1) FR2046637A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732608A (en) * 1995-05-15 1998-03-31 Eastman Kodak Company High-precision revolving center

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732608A (en) * 1995-05-15 1998-03-31 Eastman Kodak Company High-precision revolving center

Similar Documents

Publication Publication Date Title
GB1361351A (en) Bearings
GB1502462A (en) Linear motion bearing blocks
US2996901A (en) Arrangement for sealing the studs of universal joint shafts and the like
GB1309787A (en) Bearings
GB1429074A (en) Bearing systems
GB1396220A (en) Bearing retainer
GB911328A (en) Improved bearing assembly
GB1079759A (en) Improvements in or relating to bearings
GB1337621A (en) Air bearings
FR2046637A5 (en) Polyurethane thrust pad for machine tool - chuck
GB451073A (en) Improvements in and relating to centres in lathes and the like
GB1453747A (en) Ball bushing device
GB913093A (en) Grinding machine
FR2369059A1 (en) Thermally compensated grinding spindle mounting - has bearing housing mounted on membrane providing large radial stiffness but permitting axial thermal movement
GB901231A (en) Improvements relating to rectilinear-motion bearings
GB1326070A (en) Ball bearings having sheet metal race rings
US3897987A (en) Bearing protection assembly
GB924263A (en) Improvements relating to bearings for use in piano actions and other conditions of light loading
JPS56147920A (en) Bidirectionally loaded ball bearing
GB892563A (en) Thrust bearing
FR2050826A6 (en) Universal drive coupling
GB723399A (en) Single-row radial ball-bearings for supporting a shaft of a machine
GB935527A (en) Improvements in and relating to the manufacture of ball bearing races
FR2297354A1 (en) Bearing reacting thrust, radial loads and couples - has radial ball bearing between two thrust ball bearings, split inner shell (BR030876)
ATE38709T1 (en) FRICTION FREE BEARING INSTALLATION FOR A DIE OR OTHER.

Legal Events

Date Code Title Description
ST Notification of lapse