Cart (0)
  • No items in cart.
Total
$0
There is a technical issue about last added item. You can click "Report to us" button to let us know and we resolve the issue and return back to you or you can continue without last item via click to continue button.
Home
Content
Tour
eLibrary
Store
Search book title
Filters:
FORMAT
BOOKS
All Books
PACKAGES
All Packages
EDITION
to
PUBLISHER
AABC
(1)
AAMI
(337)
ACI
(589)
AISC
(55)
ASA
(234)
ASCE
(996)
ASHRAE
(690)
ASME
(2161)
ASSE
(117)
ASTM
(94624)
AWC
(54)
AWWA
(575)
BHMA
(124)
BICSI
(33)
BIFMA
(21)
BOMA
(20)
BSI
(94991)
CHD
(3)
CRSI
(17)
IAHSS
(1)
IAPMO
(374)
ICC
(315)
IEEE
(6731)
IES
(241)
ISEA
(16)
Joint Commission
(184)
Joint Commission Int.
(1)
NETA
(6)
NFPA
(1646)
TCNA
(17)
TMS
(19)
USGBC
(28)
WILEY
(4)
 
AR
(6)
AZ
(7)
CA
(115)
CT
(3)
FL
(57)
ID
(5)
IL
(5)
IN
(1)
KY
(1)
LA
(2)
MI
(25)
MN
(27)
NC
(27)
NJ
(13)
NY
(61)
OH
(24)
OR
(22)
PA
(7)
RI
(8)
SC
(20)
SD
(1)
TX
(3)
VA
(50)
VT
(6)
WA
(33)
CONTENT TYPE
 Act
 Admin Code
 Announcements
 Bill
 Book
 CADD File
 CAN
 CEU
 Charter
 Checklist
 City Code
 Code
 Commentary
 Comprehensive Plan
 Conference Paper
 County Code
 Course
 DHS Documents
 Document
 Errata
 Executive Regulation
 Federal Guideline
 Firm Content
 Guideline
 Handbook
 Interpretation
 Journal
 Land Use and Development
 Law
 Legislative Rule
 Local Amendment
 Local Code
 Local Document
 Local Regulation
 Local Standards
 Manual
 Model Code
 Model Standard
 Notice
 Ordinance
 Other
 Paperback
 PASS
 Periodicals
 PIN
 Plan
 Policy
 Product
 Product - Data Sheet
 Program
 Provisions
 Requirements
 Revisions
 Rules & Regulations
 Standards
 State Amendment
 State Code
 State Manual
 State Plan
 State Standards
 Statute
 Study Guide
 Supplement
 Sustainability
 Technical Bulletin
 All
  • BSI
    BS 426:1969 Specification for fixed centres for use on machine tools and in other applications
    Edition: 1969
    $281.30
    / user per year

Description of BS 426:1969 1969

1.1 This British Standard relates to fixed centres for use on machine tools and their auxiliary equipment, and in any other suitable circumstances such as on inspection or gauging equipment, etc.

1.2 The fixed centres specified in this standard fall into the following three series:

  • Type 1. Fixed centre, long series, standard Morse taper shank. This type utilizes the Morse taper shank details, and conforms to relevant dimensions contained in ISO/R 2961), ISO/R 2982) and BS 1660-13). The section forward of the gauge plane includes a parallel cylindrical portion (see Figure 1). When this type is fitted with a tungsten carbide tipped nose cone the amount of regrinding of the tip is strictly limited. Details showing the extent of regrinding are given in Figure 5.
  • Type 2. Fixed centre, short series, standard Morse taper shank. This type conforms to Type 1 in respect of the dimensions rearward of the gauge plane. The section forward of the gauge plane conforms in part to Type 1, but it is arbitrary whether a parallel cylindrical portion is included forward of the gauge plane or whether the Morse taper is extended (see Figure 2).
  • Type 3. Half centre, long series, standard Morse taper shank. This type utilizes the same basic dimensions as Type 1 with the exception that a portion of the centre forward of the gauge plane is cut away parallel to the axis of the centre (see Figure 3).

NOTE The dimensions of the cutaway area align with those of DIN 806, “Lathe centres (60°)”.

1) ISO/R 296, “Self-holding tapers for tool shanks”.

2) ISO/R 298, “Lathe centres. Sizes for interchangeability”.

3) BS 1660, “Machine tapers”, Part 1, “Self-holding tapers and gauges for self-holding tapers”.



Materials, dimensions, tolerances, finish, etc., for three types of fixed centre for machine tools and auxiliary equipment, and for other suitable circumstances such as inspection or gauging equipment.

Standard NumberBS 426:1969
TitleSpecification for fixed centres for use on machine tools and in other applications
StatusUnder Review
Publication Date1969-12-15
Related National Standard OfISO 298
DescriptorsSteels, Designations, Hardness, Dimensions, Design, Fixed centres, Machine tool components, Marking, Centres (machine tool components)
ICS25.060.20 Dividing and tool-workpiece holding devices
CommitteeMTE/1
ISBN0 580 05534 5
PublisherBSI
Pages14

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
GROUPS
X