FR2348790A1 - Grinding machine head with air bearings - has ports formed in brass pellets with porous filter elements housed in bush wall - Google Patents

Grinding machine head with air bearings - has ports formed in brass pellets with porous filter elements housed in bush wall

Info

Publication number
FR2348790A1
FR2348790A1 FR7611535A FR7611535A FR2348790A1 FR 2348790 A1 FR2348790 A1 FR 2348790A1 FR 7611535 A FR7611535 A FR 7611535A FR 7611535 A FR7611535 A FR 7611535A FR 2348790 A1 FR2348790 A1 FR 2348790A1
Authority
FR
France
Prior art keywords
brass
grinding machine
filter elements
machine head
air bearings
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.)
Granted
Application number
FR7611535A
Other languages
French (fr)
Other versions
FR2348790B1 (en
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.)
INST PENTRU CREATIE STINTIFIC
Original Assignee
INST PENTRU CREATIE STINTIFIC
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 INST PENTRU CREATIE STINTIFIC filed Critical INST PENTRU CREATIE STINTIFIC
Priority to FR7611535A priority Critical patent/FR2348790A1/en
Publication of FR2348790A1 publication Critical patent/FR2348790A1/en
Application granted granted Critical
Publication of FR2348790B1 publication Critical patent/FR2348790B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

The grinding machine head is supported by air bearings, having a shaft running in a cylindrical sleeve (2) in two load bearings and a double-acting thrust bearing (3). Each load bearing (1) is formed by bushes (5) mounted in the sleeve and with two rows of ports (a) round the periphery. The thrust bearing comprises a disc (7) on the shaft and running in a chamber formed by two parallel plates (9) and an annular cross-member (10). Each port is formed in a brass pellet containing a filter elements of porous material, and fitted in a radial hole in the wall of the bush. The pellet bears against a shoulder holding its forward end clear of the shaft surface, and it is sealed in place by synthetic resin.
FR7611535A 1976-04-20 1976-04-20 Grinding machine head with air bearings - has ports formed in brass pellets with porous filter elements housed in bush wall Granted FR2348790A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7611535A FR2348790A1 (en) 1976-04-20 1976-04-20 Grinding machine head with air bearings - has ports formed in brass pellets with porous filter elements housed in bush wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7611535A FR2348790A1 (en) 1976-04-20 1976-04-20 Grinding machine head with air bearings - has ports formed in brass pellets with porous filter elements housed in bush wall

Publications (2)

Publication Number Publication Date
FR2348790A1 true FR2348790A1 (en) 1977-11-18
FR2348790B1 FR2348790B1 (en) 1978-08-25

Family

ID=9172024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7611535A Granted FR2348790A1 (en) 1976-04-20 1976-04-20 Grinding machine head with air bearings - has ports formed in brass pellets with porous filter elements housed in bush wall

Country Status (1)

Country Link
FR (1) FR2348790A1 (en)

Also Published As

Publication number Publication date
FR2348790B1 (en) 1978-08-25

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Legal Events

Date Code Title Description
ST Notification of lapse