DIN 31694-1990 Pedestal plain bearings centre flange bearings《普通关节轴承 普通托架轴承 中心法兰轴承》.pdf

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1、DEUTSCHE NORM September 1990 UDC 621.822.52-213 I Pedestal plain bearings Centre flange bearings I 31694 Gleitlager; Gehusegleitlager; Mittenflanschlager In keeping with current practice in standards published by the International Organization for Standardization (/SO), a comma has been used through

2、out as the decimal marker. Dimensions in mm 1 Scope and field of application This standard specifies sizes, materials and the design of centre flange bearings, which are pedestal plain bearings mainly intended to be used in electrical engineering and machinery with turbo-electric drive. 2 Design fea

3、tures Bearing housing: Heat dissipation: Bore type for radial bearing and type of lubrication: Additional axial bearing (if any): Housing seal: M = centre flange bearing with cooling fins N = natural cooling W = water cooling in oil sump U = circulating pump and natural cooling T = circulating pump

4、and water cooling in oil sump Z = circulation lubrication, with external oil cooling C = cylindrical bore without lubricating ring L = cylindrical bore with two-piece floating lubricating ring Y = two-face (lemon shape) bearing without lubricating ring V = four-face bearing without lubricating ring

5、Q = without sliding surfaces B = with plain sliding surfaces and with lubrication grooves K = with thrust pads (design and dimensions at A = with tilting pads I manufacturers discretion) Type and dimensions subject to agreement. The symbols given above figure 1 indicate only those design features wh

6、ich are illustrated. When ordering, all design features desired shall be specified. 3 Dimensions and designation Centre flange bearings are not expected to conform to the designs illustrated here; compliance is only required in the case of the dimensions specified. Details left unspecified are to be

7、 selected as appropriate. Designation of a size 14 centre flange bearing for a shaft of diameter 125 mm, housing with cooling fins (M), circulation lubrication with external oil cooling (Z), cylindrical bore with two-piece floating lubrication ring (L), with type K axial bearing: Centre flange beari

8、ng DIN 31 694 - 14 - 125 - MZLK Continued on pages 2 to 7 luth Verlag GmbH. Berlin, has the exclusive right of sale for German Standards (DIN-Normen). DIN 31 694 Engl. Price group 09.92 Sales No. 0107 Page 2 DIN 31 694 4 M.LB properties DIN 7168 DIN 17100*) DIN 17210 DIN 17660 Copper-zinc alloys; co

9、mposition DIN 31 692 DIN 31 698 DIN 31 699 DIN EN 10025 IS0 1302 : 1978 IS0 4381 : 1981 Cast steel for general engineering purposes; technical delivery conditions Rough castings of grey cast iron; general tolerances and machining allowances General tolerances for linear and angular dimensions and ge

10、ometrical tolerances (not to be used for new designs) Steel for general structural purposes: quality standard Cast hardening steel; technical delivery conditions Information on the lubrication of plain bearings Fits for plain bearings Plain bearings; shafts and collars; geometrical tolerances and su

11、rface roughness Hot-rolled unalloyed structural steel products; technical delivery conditions Technical drawings; method of indicating surface texture on drawings Plain bearings: lead and tin casting alloys for multi-layer plain bearings Other relevant standards DIN 908 DIN 4768 DIN 31 652 Part 1 DI

12、N 31 652 Part 2 DIN 31 652 Part 3 DIN 31 653 Part 1 DIN 31 653 Part 2 DIN 31 653 Part 3 DIN 31054 Part 1 DIN 31 654 Part 2 DIN 31 654 Part 3 Hexagon socket screw plugs with parallel thread Determination of surface roughness parameters Ra, R,. and R, with electric stylus instruments; con- cepts and m

13、easuring conditions Hydrodynamic plain journal bearings designed for operation under steady-state conditions; design of cylindrical bearings Hydrodynamic plain journal bearings designed for operation under steady-state conditions; formulae for designing cylindrical bearings Hydrodynamic plain journa

14、l bearings designed for operation under steady-state conditions; param- eters for designing cylindrical bearings Hydrodynamic plain thrust bearings designed for operation under steady-state conditions: design of thrust-pad bearings Hydrodynamic plain thrust bearings designed for operation under stea

15、dy-state conditions: formulae for designing thrust-pad bearings Hydrodynamic plain thrust bearings designed for operation under steady-state conditions; parameters for the design of thrust-pad bearings Hydrodynamic plain thrust bearings designed for operation under steady-state conditions; design of

16、 tilt- ing-pad bearings Hydrodynamic plain thrust bearings designed for operation under steady-state conditions: formulae for designing tilting-pad bearings Hydrodynamic plain thrust bearings designed for operation under steady-state conditions; parameters for the design of tilting-pad bearings *) S

17、uperseded by DIN EN 10025. DIN 31 694 Page 7 DIN 31 655 Part 1 DIN 31 655 Part 2 DIN 31 656 Part 1 DIN 31 656 Part 2 DIN 31 690 DIN 31 691 DIN 31 693 DIN 51 519 DIN 51 563 IS0 228-1 : 1982 IS0 4382-1 : 1982 IS0 4382-2 : 1981 IS0 4383 : 1981 IS0 4386-1 : 1982 Hydrodynamic plain journal bearings desig

18、ned for operation under steady-state conditions; design of oil-lubricated bearings without drainage grooves Hydrodynamic plain journal bearings designed for operation under steady-state conditions; param- eters for the design of oil-lubricated bearings without drainage grooves Hydrodynamic plain jou

19、rnal bearings designed for operation under steady-state conditions; design of oil-lubricated bearings with drainage grooves Hydrodynamic plain journal bearings designed for operation under steady-state conditions; param- eters for the design of oil-lubricated bearings with drainage grooves Pedestal

20、plain bearings: plummer blocks Oil-level indicators; requirements, mating dimensions, tapped holes Pedestal plain bearings; side flange bearings IS0 viscosity classification for industrial liquid lubricants Determination of viscosityltemperature relationship for petroleum products Pipe threads where

21、 pressure-tight joints are not made on the threads; designation, dimensions and tolerances Plain bearings; copper alloys and cast copper alloys for solid and multi-layer plain bearings Plain bearings; copper alloys, wrought copper alloys for solid plain bearings Plain bearings; metallic multi-layer materials for thin-walled plain bearings Plain bearings; metallic multi-layer plain bearings; non-destructive ultrasonic testing of bond for bearing metal layer thicknesses 22 mm International Patent Classification F 16 C 17/00 F 16 C 35/02