BS 4235-1:1972
Current
The latest, up-to-date edition.
Specification for metric keys and keyways Parallel and taper keys
Hardcopy , PDF
English
22-02-1972
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Co-operating organizations
Foreword
1 Scope
2 Fits
3 Material
4 Dimensions and tolerances
Parallel and taper keys and keyways for shafts of 6 mm to 500 mm diameter. For square and rectangular parallel keys three classes of fit, \'free\', \'normal\' and \'close\', are foreseen.
| Committee |
MCE/5
|
| DevelopmentNote |
Reviewed and confirmed by BSI, December 2012. (11/2012)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard relates to the following types of keys and keyways with dimensions in millimetres:
square parallel,
rectangular parallel,
square taper, gib-head and plain,
rectangular taper, gib-head and plain.
In addition, a fourth class of fit is provided in this British Standard to give an interference fit.
Three classes of fit are provided for the square and rectangular parallel keys and keyways, namely “free”, “normal” and “close”, and the dimensions and tolerances specified are in accordance with ISO Recommendations R 7733) and R 7744).
| Standards | Relationship |
| ISO/R 773:1969 | Similar to |
| BS 4999-141:1987 | General requirements for rotating electrical machines Specification for standard dimensions |
| DEFSTAN 02-327/3(2006) : 2006 | REQUIREMENTS AND GUIDANCE FOR THE PROCUREMENT OF PUMPS FOR AUXILIARY SYSTEMS |
| DEFSTAN 02-327/4(2016) : 2016 | STANDARDS FOR DEFENCE REQUIREMENTS AND GUIDANCE FOR THE PROCUREMENT OF PUMPS FOR AUXILIARY SYSTEMS |
| DEFSTAN 02-327/2(2001) : INTERIM | REQUIREMENTS AND GUIDANCE FOR THE PROCUREMENT OF PUMPS FOR AUXILIARY SYSTEMS |
| BS 4999-141(2004) : 2004 | GENERAL REQUIREMENTS FOR ROTATING ELECTRICAL MACHINES - PART 141: SPECIFICATION FOR STANDARD DIMENSIONS |
| BS 7262:1990 | Specification for automatic safe load indicators |
| BS 8888:2017 | Technical product documentation and specification |
| BS 6276:1987 | Specification for dimensions and identification code for mounting flanges and shafts ends for hydraulic fluid power pumps and motors |
| BS 5840-2:1982 | Valve mating details for actuator operation Specification for couplings |
| BS 8888:2011 | Technical product documentation and specification |
| BS 235:1987 | Specification for gears for electric traction |
| BS 4485-3:1988 | Water cooling towers Code of practice for thermal and functional design |
| BS 5816:1979 | Specification for dimensions of rotary vane feeders for continuous mechanical handling equipment |
| BS 8888:2006 | Technical product specification (TPS). Specification |
| BS 8888:2008 | Technical product specification. Specification |
| BS 8888:2004 | Technical product specification (TPS). Specification |
| BS 4517:1969 | Specification for dimensions of spur and helical geared motor units (metric series) |
| BS 7130:1989 | Specification for mechanical balancing of rotating machinery: shaft and fitment key convention |
| BS 466:1984 | Specification for power driven overhead travelling cranes, semi-goliath and goliath cranes for general use |
| BS 7161:1990 | Specification for propeller shaft ends and bosses for inboard-engined pleasure craft |
| BS 4823:1972 | Guide to the selection of fitment bores for cylindrical shaft ends |
| BS 8888:2002 | Technical product documentation (TPD). Specification for defining, specifying and graphically representing products |
| BS 5208:1975 | Specification for dimensions of power take-off driving shafts and mounting faces for small internal combustion engines |
| BS 2890:1989 | Specification for troughed belt conveyors |
| BS 8888:2013 | Technical product documentation and specification |
| BS 4185-6:1985 | Machine tool components Specification for change gears |
| BS 3170:1972 | Specification for flexible couplings for power transmission |
| BS 7905-1:2001 | Lifting equipment for performance, broadcast and similar applications Specification for the design and manufacture of above stage equipment (excluding trusses and towers) |
| BS 46-1:1958 | Keys and keyways and taper pins Specification. Keys and keyways |
| BS 4500-1:1969 | ISO limits and fits General, tolerances and deviations |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.