131956414 Machine and Devices WASHERS

7/30/2019 131956414 Machine and Devices WASHERS

1/24

MACHINE DEVICES and COMPONENTSI L L U S T R A T E D S O U R C E B O O K

SECTION

16

WASHERS d Ie a sf o rF l a tW a s h e r s V e r s a t e l i F l a tW a s h e r sJ o b sf o rF l a tR u b b e rW a s h e r s T a k eA n o h te rL o o ka tS e ra t e dW a s h e r s D s ih e dW a s h e r sA r eV e r s a t e l i C o m p o n en s t D e s g in P r o b e lm sS o v le dw t i hB e l e v i l eS p r n ig W a sh e r s C r e a t v ie d Ie a sf o rC u p p e dW a s h e r s S E MA p p c i lat o in s S E MS t a n d a r d sT a b e ls16-2 16-4 16-6 16-816-10 16-12 16-14 16-16 16-17


2/24

I d e a s

f o r

F l a t

W a s h e r s

You can do more with washers than you may think. Here are 10 ideas that may savethe day next time you need a simple, quick, inexpensive design.Robert O. Parmley

Bolt Flat washer

Flat washers (loose fit on shaft}

Belt

Belleville spring

Hole dla

Are your belts overlapping? A flat washer, loosely fitted to the shaft separatesthem.

Need to hold odd-shaped parts? A flat washer and Belleville spring make a simpleanchor.

Rod,

Movement

StemPin Fiat washers

90deg approx Flat washer

Bent flat washer Rod' Base,

Float End viewLiquid level (variable} FlQQf travel

Press fit or weld

Drive

pin

How about a rod support? A bent washer permits some rocking; if welded, the support is stable.

Got a weight problem? Adding or subtracting flat washers can easily control float action.


3/24

(Add axle rod for fuming) Fiat washer Pulley Mount base Fiat washers Height adjustment Anchor bolt

Shaft Twine'

Concrete

How about some simple flanges? Here the washers guide the twine and keep it under control.

Does your floor tilt? Stacked washers can level machines, or give a stable height adjustment.

Rod

Flat washers

Rotating index

Pin

Arm Axle Machine bolt Fiat washer Rubber disk Base Lock Loosen Fiat washer Lever

Need some wheels? Here flat washer is the wheel. A rubber disk quiets the assemb

ly.Here's a simple lock. A machine bolt, a washer, and a wing or lever nut make a strong clamp.

Flat washer Post Roller

Shaft

.Flat washer

Rod* Tube Flat washer

Base

Flat PIn washer Washer Tubing

Want to avoid machining? Washers can make anchors, stop shoulders, even reduce tubing ID.

Need a piston in a hurry? For light service, tube, rod, and washer will be adequate.


4/24

V e r s a t i l e c a n b e u s e d

F l a t in a

W a s h e r s : o f u n u s u a l a p p l i c a t i o n s

v a r i e t y

Robert O. Parmley

Stiffen machine mount Machine screw Machine base

Support a shaft

Shaft or round stock Flat washer Cut square and weld

Flat washer Rubber grommet

Flat washer Stabilize a point Slot

Folded flat washer

Spot weld (optional) Channel Point Guide wire or tubing

Act as a valve seat Plastic ballWeld

Flat washer Wire or tubing Tube Adhesive bond Sleeve Vacuum

Bent washer

Flat washer


5/24

Washers are usually thought of as bearing surfaces placed under bolt heads. Butthey can be used in a variety of ways that could simplify a design or be an immediate fix until a designed part is available.

Reinforce a roller

Act a s a pulley flange

Rolling bushing

Axle

Flat washer

Shoulder Rubber roller Jam nut Flat washer

Form a pulley Crimp tubing Pulley bracket

Form a shock absorber Anchor bolt' Anchor nut Machine mount

Flat washer

Flat washers (5 large, 4 small) Cable Metal flat washer Rubber flat washer Floorgrade Act a s a bearing surface Fiberglass housing Flat washers

Lock washer Plastic shell C a p screw


6/24

J o b s

f o r

F l a t

R u b b e r

W a s h e r s

Rubber washers are more versatile than you think. Here are some odd jobs they can do that may make your next design job easier.Robert O. Parmley

Mount leg

Me/of washers for spacers and strength. Rubber flat washersM ,Frame

Adhesive bond Steel bo!!' Rubber flat washers Base

Impact a b s o r p t i o n idler roller P

Compression

mountValve stem Post Rubber T flat washer

Cylinder wall ; ; Rubber flat washers Concrete Pipe sleeve Metal disks P

Heavy shock load s u p p o r t

Cylinder valve


7/24

Tube crimped at end

Metal fiat washer at end

Rubber fiat washers'

Step roller

Cylinder

Plug

Rubber fioi washer Hose

Vacuum

Bali Hose bib (connection)Adhesive bond TiQstic chamber

Rubber ftof washer

Adhesive bond

Compression ball seat

Hose bib retainerAction arc

Connection

Stem

Protects stem

Rubber flat washer, (press fit) insulated wires Rubber flat washers slide on wire, connect, then slip into position Optional

Base

Boll -stem pivot

Protective bumper

Expansion isolator


8/24

T a k e a t

A n o t h e r

L o o k W a s h e r s

S e r r a t e d

They're a stock item and come in a variety of sizes. With a little thought theycan do a variety of jobs. Here are just eight.Robert O. Parmley

S$f?tyteU... wGsher \

ok JKreSd

P^ Spring

.Hkusbu.

BW

Waff

WoWkosher.'ifpffT Stajprot^iojiof bolts or pins

I|in1er|g4a*i

SpctiLmM

ft

Ser'rafei Rashers iadd-for

S e c J A 4 A

$ermtk kaSe/\

^

iimfrhiTFmi^s'

Simple gear f6rl!gftt^piili4atioris

#nferwiv^d|wiretwtstt


9/24

belleville Wosher

shaff Serrated washers jam nut

vary washers for width

Bead chain

Gear or sprocket for bead chainindexing

Retaining ring

link chain

Serrated washer

shaff

Paper or cardboard vary number for Width Serrated washers

sheet

feed

Link chain sprockets

Material or paper drive or feeder

Serrated washer Solder

Rods Maunf

hole

End mountihg for simple tumbler


10/24

D i s h e d

W a s h e r s

A r e

V e r s a t i l e

C o m p o n e n t s

Let these ideas spur your own design creativity. Sometimes commercial Bellevillewashers will suit; other wise you can easily dish your own.Robert O. Parmley

Load Aligning bolt Mounting plate

Jam nut

Dished washers Lock washer

Shaft

Belleville spring washer (add or subtract) for height Base HEIGHT ADJUSTMENT GUIDE WHEEL

WorApiece

Add rubber between WGshers for grip power

To remove pin Shaft Washer Optional weldWashers

Housing surface L ocA washer Cap screw Brash (steel wool or wood fiber)

Pin

BRUSH RETAINER Load Retaining ring

E A S Y PIN REMOVAL

Mount plcte

Recess

Voive seat

StemWeld

Pin Base COIL SPRING STABILIZER

Belleville washers Washer

SIMPLE VALVE


11/24

Washers Workpiece A A Section A-A Washer Workpiece

Shoft

V be If Shaft

\ Add holes and bolts here for non-slipping Base ALIGNING B U T T O N S will rotate if holding screw is shouldered (End view of alternate, non-slip orrongement)V-BELT P U L L E Y Rubber surface adhesive. tope on bevels Washers-

Dished washers

Shouldered plastic stem Alternate: Protect corners and surface of delicate materials Lock washer Cap screw Housing surface Washer Washer

Shaft

E N DA N DC O R N E R PROTECTION

SIMPLE B E V E L DRIVE

Tubing,

Washer

Shafts

Belleville spring washers

Enlarged view

Rivet over^

Wood, rubber or plastic spool

Jom nuts

Work area

F L A R E D S P O O L F L A N G E S

C O R R U G A T I N GR O L L E R SF O RP A P E RO R C A R D B O A R D


12/24

D e s i g n S p r i n g Robert O. Parmley

P r o b l e m s W a s h e r s

S o l v e d

w i t h

B e l l e v i l l e

Pulley assembly Veebelt (sectioned)

Retain tapered coil spring Chamber

Shaft -Coil spring (tapered) Belleville spring disc Jam nut (2) Lock washer (2)

Knurled adjustment sleeve

Belleville spring discs (sectioned)

Stem

Mounting spring stabilizerForce

(Nut and washer optional)

Force Grommet seat

Belleville spring discs Coil spring

Concrete floor Delicate panel Rubber grommet

Anchor bolt

Belleville spring disc

Bench


13/24

Belleville springs are a versatile component that offer a wide range of applications. There are many places where these components can be used and their availability as a stock item should be considered when confronted with a design problemthat requires a fast solution.

Secure anchor boltAnchor bolt

Clamp fixture spring Belie.vilie spring disc

Holding pad Concrete floor Optional floor height

Work

Sleeve Compression sleeve Lock retainer Belleville spring disc Flat washer (4 required) Belleville spring disc (4 required)

Door

Lock mechanism

Machine leg spring mounts Leg Cap screw Cap screw Belleville spring discs Floor

Believitle spring disc Anchor bolt A B C


14/24

C r e a t i v e

I d e a s

f o r

C u p p e d

W a s h e r s

A standard off-the-shelf item with more uses than many ever considered.Robert O. Parmley

Pipe Rod Weld pupped washers (sectioned) Cupped washer (drive fit)

Shaft Internal Pipe

Weld or solder End

Cupped washer (press fit or weld)

Simple step pulley

Rod aligner and pipe-end bearing

Chamber wall Plastic tubing (removable) Hand press fit

Rod

Cylinder waif Cupped washer (sectioned)

Cupped washer (sectioned) Adhesive bond Air vent hole Solder Tubing connector Weld

Simple piston f o r cylinder


15/24

Nut-

Press plote

Coil spring Cupped woshers (sectioned)

Pin

Coil spring stabilizer and compression brake Cupped wosher

Wooden leg

Cupped woshers Pulley Shaft-

Cupped woshers

Seated Posts Cupped washer Cupped washer Solder

Concrete floor

Roller Snap rings Snap ring Inverted

Base Post shoe

Simple pulley and rollerPost anchors and supports

Wall Cupped woshers (sectioned) Toggle switch

Cupped washer

Plastic stem

Toggle switch housing

Protection for step shoulders


16/24

S E MN. Dale Long

A p p l i c a t i o n s

W hen a split lockwasher is called for in a screw fastening, a flat washer is invariably necessary. The ways of assembling them illustrated below are strict requirements in military specificationsespecially for electronic equipment. Com-

mercial requirements usually varydepending upon either the designer's decision or product-cost restrictions. For good quality and reliable service, however, the fastening methods shown here can be depended on to pay off.

ASSEMBLY OF FLAT WASHERS AND SPLIT LOCK WASHIRS Flat washers shouSd be placed between . . .

1 Metal surface, whether finished or not, and locking washer

Flat washer Lock washer

Nonmetal material 2 Nonmetal surface and locking washer Flat washer

Nonmetal material 3 Screw head and nonmeta! surface

Fiat washerFiat washer

Fiat washer 4 Screw head and metal that is 0.032 in. or less thick

Metal 0.032-in. or less thick

Flat washer 5 Screw head and enlarged or elongated clearance hole Flat washer

6 Locking washer and enlarged or elongated clearance hole Flat washer


17/24

S E M

S t a n d a r d

T a b l e sindentation optional

P a n Head Machine Screw

Fillister Head Type D Tapping Screw

H e xH e a d [Note (Dj Type F Tapping Screw

H e x Washer H e a d Type T Tapping Screw

H e xC a p Screw

Representative E x a m p l e so f Helical Spring L o c kW a s h e rS e m s

N o m n ia l S z ie [ N o t e (2)] o r B a s c i S c r e w D a im e t e r 2 0 .0 8 6 0 0 . 0 9 9 0 3 0 . 1 1 2 0 4 0 . 1 2 5 0 5 0 . 1 3 8 0 6 0 . 1 6 4 0 8 0. 1 9 0 0 1 0 0 . 2 1 6 0 1 2 0 . 2 5 0 0 0 . 3 1 2 5 3 0 . 3 7 5 0 Z 3 0 . 4 37 5 0 . 5 0 0 0 V 2

D I M E N S I O N SO FH E L I C A LS P R I N GL O C KW A S H E R SF O RS E M SWI T HM A C H I N EA N DT A P P I N GS C R E W S H A V I N GM A C H I N ES C R EWT H R E A DD I A M E T E R P I T C HC O M B I N A T I O N S P a nH e a dS c r ew Filister H e a dS c r e w H e xH e a dS c r e w [Noted}] H e xW a s h e rH ea dS c r e w W a s h e r W a s h e r W a s h e r W a s h e r S e c t i o n S e ct i o n S e c t i o n S e c t i o n W a s h e r W a s h e r W a s h e r W a s he r W a s h e r T h i c k - O T h i c k - O u t s i d e u t s d ie T h i c k -O u t s d ie u t s d ie I n s i d e T h i c k - O a im e t e r a im e t e r W aim e t e r W D a im e t e r W i d t h n e s s D a im e t e r W i d t h n e s s Di d t h n e s s D i d t hn e s s D M a x . 0 . 0 8 0 0 . 0 9 1 0 . 1 0 6 0 . 11 8 0 . 1 2 9 0 . 1 5 5 0 . 1 7 9 0 . 2 0 3 0 . 2 3 8 0 . 2 9 8 0 . 3 6 1 0 . 42 0 0 . 4 8 2 Min. 0 . 0 7 5 0 . 0 8 6 0 . 1 0 1 0 . 1 1 3 0 . 1 2 4 0 . 1 4 9 0. 1 7 3 0 . 1 9 6 0 . 2 3 0 0 . 2 9 0 0 . 3 5 3 0 . 4 1 1 0 . 4 7 3 Min. Min. M

a x . . 1 5 6 0 . 0 3 5 0 . 0 2 00 . 1 7 8 0 . 0 4 0 0 . 0 2 50 . 2 0 8 0 . 0 470 . 0 3 1 0 0 . 2 2 0 0 . 0 4 70 . 0 3 1 . 2 6 1 0 . 0 6 2 0 . 0 3 40 . 3 1 90 . 0 7 80 . 0 3 1 0 . 3 7 3 0 . 0 9 30 . 0 4 7 0 . 4 2 9 0 . 1 0 90 . 0 6 2 0 .4 9 6 0 . 1 2 50 . 0 6 2 0 . 6 1 8 0 . 1 5 60 . 0 7 8 0 . 7 1 1 0 . 1 7 1 0 . 09 30 Min. 0 . 1 4 5 0 . 1 6 6 0 . 1 9 5 0 . 2 0 7 0 . 2 4 8 0 . 3 0 5 0 . 3 5 90 . 4 1 4 0 . 4 8 0 0 . 6 0 2 0 . 6 9 5 Min. 0 . 0 3 0 0 . 0 3 5 0 . 0 3 5 0 .0 3 5 0 . 0 4 7 0 . 0 4 7 0 . 0 5 5 0 . 0 6 2 0 . 0 7 7 0 . 1 0 9 0 . 1 2 5 Min.0 . 0 2 0 0 . 0 2 0 0 . 0 2 0 0 . 0 2 0 0 . 0 3 1 0 . 0 3 1 0 . 0 4 0 0 . 0 4 70 . 0 6 3 0 . 0 6 2 0 . 0 6 2 M a x . 0 . 1 4 6 0 . 1 6 8 0 . 1 8 4 0 . 1 9 6 0. 2 3 1 0 . 2 5 7 0 . 2 9 7 0 . 3 3 5 0 . 4 0 0 0 . 5 2 4 0 . 6 1 9 Min. 0 . 13 5 0 . 1 5 6 0 . 1 7 1 0 . 1 8 3 0 . 2 1 8 0 . 2 4 3 0 . 2 8 3 0 . 3 2 0 0 . 38 4 0 . 5 0 8 0 . 6 0 3 Min. 0 . 0 3 0 0 . 0 3 5 0 . 0 4 0 0 . 0 4 7 0 . 0 4 7 0. 0 5 5 0 . 0 6 2 0 . 0 7 0 0 . 1 0 9 0 . 1 2 5 0 . 1 4 1 0 . 1 5 6 0 . 1 7 1 M

in. 0 . 0 2 0 0 . 0 2 0 0 . 0 2 5 0 . 0 3 1 0 . 0 3 1 0 . 0 4 0 0 . 0 4 7 0 . 05 6 0 . 0 6 2 0 . 0 7 8 0 . 0 9 4 0 . 1 0 9 0 . 1 2 5 M a x . 0 . 1 4 6 0 . 1 68 0 . 1 9 2 0 . 2 2 0 0 . 2 3 1 0 . 2 7 1 0 . 3 1 1 0 . 3 5 1 0 . 4 6 4 0 . 5 56 0 . 6 5 1 0 . 7 4 0 0 . 8 3 4 Min. 0 . 1 3 5 0 . 1 5 6 0 . 1 8 1 0 . 2 0 7 0 .2 1 8 0 . 2 5 9 0 . 2 9 7 0 . 3 3 6 0 . 4 4 8 0 . 5 4 0 0 . 6 3 5 0 . 7 2 3 0 .8 1 5 Min. 0 . 0 3 5 0 . 0 4 0 0 . 0 4 7 0 . 0 4 7 0 . 0 6 2 0 . 0 7 8 0 . 0 93 0 . 1 0 9 0 . 1 2 5 0 . 1 5 6 0 . 1 7 1 Min. 0 . 0 2 0 0 . 0 2 5 0 . 0 3 1 0 .0 3 1 0 . 0 3 4 0 . 0 3 1 0 . 0 4 7 0 . 0 6 2 0 . 0 6 2 0 . 0 7 8 0 . 0 9 3 M ax . 0 . 1 5 6 0 . 1 7 8 0 . 2 0 8 0 . 2 2 0 0 . 2 6 1 0 . 3 1 9 0 . 3 7 3 0 . 42 9 0 . 4 9 6 0 . 6 1 8 0 . 7 1 1 Min. 0 . 1 4 5 0 . 1 6 6 0 . 1 9 5 0 . 2 0 7


18/24

0 . 2 4 8 0 . 3 0 5 0 . 3 5 9 0 . 4 1 4 0 . 4 8 0 0 . 6 0 2 0 . 6 9 5

Indentation optional

P a nH e a d Type A B Tapping Screw

Fillister Head Type B F Tapping Screw

H e x Head [Note 1 1 ) 3 Type B Tapping Screw

H e x Washer Head Type B T Tapping Screw

Representative E x a m p l e so f Helical Spring L o c kW a s h e rS e m s

N o m n ia l S z ie [ N o t e (2}] o r B a s c i S c r e w D a im e t e r 4 0 .1 1 2 0 5 0 . 1 2 5 0 6 0 . 1 3 8 0 7 0 . 1 5 1 0 8 0 . 1 6 4 0 1 0 0 . 1 9 0 01 2 0 . 2 1 6 0 0 . 2 5 0 0 V 4 6 . 3 1 2 5 Z 1 6 0 3 . 3 7 5 0 Z 8 0 . 4 3 7 5Vi6 0 0 . 5 0 0 0 V 2 G E N E R A LN O T E S : ( a )F o r additional r e q u i re m e n t s , refer to S e c t o in s2a n d 3. ( b }D m ie n s o in so f helical s p r i n gl o c kw a s h e r sa p p l i c a b l e to "not r e c o m m e n d ed for n e w design" s t a t u sr o u n da n d truss h e a ds c r e ws e m sa ndT y p e A tapping s c r e w s e m sa r ed o c u m e n t e d for r e f e r e n cep u r p o s e s in A p p e n d x i B . N O T E S : { 1 }T h er e g u l a rt ri m m e do ru p s e th e xh e a ds c r e w s shall a p p l y for t h ew a s h e

r ss h o w n .W h e r eu p s e tl a r g eh e xh e a ds c r e w s in s z ie sN o, 4, 5, 8, 1 2 ,a n d1 / 4 in. a r e specified b yt h ep u r c h a s e r , the wa s h e r ss h o w n for t h ec o r r e s p o n d i n gs i z eh e xw a s h e rhe a ds c r e w shall apply. R e f e r to a p p r o p r i a t et a b l e s for he xh e a dt a p p i n gs c r e w s in A S M EB 1 8 . 6 . 4 . ( 2 )W h e r es pe c i f y i n gn o m i n a ls z i e in d e c i m a l s ,z e r o sp r e c e d n ig t h ed e c m ia la n d in t h e fourth p a lc e shall b e omited.Reprinted from ASME B18.13a-1998, by permission of the American Society of Mechanical Engineers. All rights reserved.

T H R E A DD I A M E T E R P I T C HC O M B I N A T I O N S P a nH e a dS c r ew Filister H e a dS c r e w H e xH e a dS c r e w [Noted)] H e xW a s h e rH e adS c r e w W a s h e r W a s h e r W a s h e r W a s h e r S e c t i o n S e c

t i o n S e c t i o n S e c t i o n W a s h e r W a s h e r W a s h e r W a s he r W a s h e r T h i c k - O u t s d ie u t s i d e u t s d ie T h i c k - O ut s d ie I n s i d e T h i c k - O T h i c k - O a im e t e r W i d t h n e s sD i d t h n e s s D a im e t e r a im e t e r W i d t h n e s s D a im e t e r WD a im e t e r W i d t h n e s s D M a x . Min. Min. Min. M a x . Min. Min. Min. M a x . Min. Min. Min. M a x . Min. Min. Min. M a x . Min. . 1 9 0 . 0 4 7 0 .0 4 0 0 . 0 2 5 0 . 1 8 7 0 . 1 7 6 0 . 0 4 7 0 . 0 3 10 . 2 0 10 . 2 0 10 . 19 0 0 . 0 3 5 0 . 1 7 9 0 0 . 1 0 10 . 0 9 6 0 . 0 3 1 0 . 0 2 0 0 . 1 6 6 0 . 20 7 . 0 3 1 0 0 . 0 4 7 0 . 2 1 4 0 . 2 0 10 . 0 5 0 0 . 0 3 4 0 . 2 1 8 0 . 03 5 0 . 0 5 0 0 . 2 1 8 0 . 2 0 7 0 0 . 1 9 0 0 0 . 1 1 2 0 . 1 0 7 0 . 0 3 4 0. 0 2 0 . 1 7 7 0 . 2 4 0 0 . 0 4 7 0 . 0 3 1 0 . 2 2 3 0 . 2 1 0 0 . 0 6 2 0 .0 3 4 0 . 2 5 3 0 . 2 5 3 0 . 2 4 0 0 . 2 2 3 0 . 1 2 10 . 1 1 6 0 . 0 6 2 0 . 03 4 0 . 0 4 7 0 . 0 3 10 . 2 1 0 0 0 4 7 0 . 0 3 10 . 2 3 7 0 . 2 2 4 0 . 0 6 2

0 . 2 6 7 0 . 2 6 7 0 . 2 5 4 0 2 3 7 0 . 2 5 4 0 . 1 3 5 0 . 1 3 0 0 . 0 3 4 0. 0 3 4 0 . 0 6 2 0 . 0 4 7 0 . 0 3 1 . 0 . 2 2 4 . . 2 9 4 . 0 5 5 0 . 0 4 0 0. 2 6 2 0 . 2 4 8 0 . 0 7 8 0 . 0 3 10 . 3 0 8 0 . 3 0 8 0 . 2 9 4 0 . 0 4 7 0. 2 4 6 0 . 0 3 10 . 2 3 2 0 0 . 1 4 4 0 . 1 3 8 0 . 0 3 1 0 . 0 7 8 0 . 0 6 2 0. 3 1 8 . 0 4 0 0 . 2 8 0 0 . 2 6 6 0 . 0 4 7 0 . 2 9 4 0 . 2 8 0 0 . 0 8 10 .3 3 2 0 . 3 3 2 0 . 3 1 8 0 . 0 5 5 0 0 . 1 6 2 0 . 1 5 6 0 . 0 8 10 . 0 5 6 0 .0 5 6 0 . 0 4 7 0 0 . 3 4 3 0 . 0 5 6 0 . 3 3 6 0 . 3 2 1 0 . 0 8 1 0 . 3 5 8 .3 5 80 . 3 4 3 0 . 0 6 2 0 0 . 1 8 8 0 . 1 8 10 . 0 8 10 . 0 5 6 0 0 . 0 5 6 .0 7 0 . 3 2 0 0 . 3 0 5 0 . 4 4 9 . 0 6 2 0 . 4 4 9 0 . 0 7 7 0 . 3 6 3 0 0 . 21 7 0 . 2 0 90 . 1 2 0 0 . 0 6 2 0 . 4 4 3 0 . 4 2 7 0 . 1 2 0 0 . 0 6 2 0 . 4 6


19/24

5 0 . 4 6 5 0 . 3 7 9 0 . 0 6 3 0 . 1 0 9 0 . 5 2 0 . 5 2 0 0 . 0 7 8 0 . 5 3 60 . 1 2 5 0 . 0 7 8 0 . 5 3 6 0 0 . 2 7 8 0 . 2 7 00 . 1 2 5 0 . 0 7 8 0 . 5 36 0 . 1 0 9 0 . 0 6 2 0 . 5 0 4 0 . 4 8 8 0 . 1 2 5 0 . 5 2 0 0 . 6 1 2 . 6 2 80 . 1 4 10 0 . 6 2 8 0 . 6 2 8 0 . 6 1 2 0 . 0 6 2 0 . 5 9 6 0 . 1 4 10 . 0 9 40 0 . 3 3 8 0 . 3 3 00 . 1 4 10 . 0 9 4 0 . 5 8 0 0 . 6 1 2 0 . 1 2 5 0 . 0 9 40 . 7 1 6 0 , 1 5 6 0 . 1 0 9 0 . 3 9 7 0 . 3 8 8 0 . 7 0 0 . 8 1 2 0 0 . 1 7 10. 1 2 5 0 0 . 4 6 0 0 . 4 5 1 . 7 9 3


20/24

S

E

M

S t a n d a r d

T a b l e s

(continued) indentation optional

C o la ro nc o u n t e r s u n k w a s h e r s optional

Flat H e a dM a c h n ie S c r e w

O v a lH e a dT y p eB T a p p n ig S c r e w

P a nH e a dT y p eA B H e xH e a d[ N o t e (IHH e xW a s h e rH e a dT y p eHe xC a pS c r e w T a p p n ig S c r e w T y p eDT a p p n ig S c r e w TT a p pn ig S c r e w R e p r e s e n t a t i v eE x a m p e l s of E x t e r n a lT oo t hL o c kW a s h e rS e m s

N o m n ia lS z ie [ N o t e (2)] o rB a s c i S c r e w D a im e t e r 2 0 . 0

8 6 0 . 0 9 9 0 3 0 . 1 1 2 0 4 0 . 1 2 5 0 5 0 6 0 . 1 3 8 0 7 0 . 1 5 1 0 8 0. 1 6 4 0 1 0 0 . 1 9 0 0 1 2 0 . 2 1 6 0 . 2 5 0 0 V 4 0 0 . 3 1 2 5 . 3 7 5 0% 0

D I M E N S I O N SO FE X T E R N A LT O O T HL O C KW A S H E R SF O RS E M S Pa nH e a dS c r e w H Flat a n dO v a lH e a dS c r e w s e xH e a da n dH e xCa pS c r e w s[ N o t e (D] H e xW a s h e rH e a dS c r e w W a s h e r W a sh e r W a s h e r V W a s h e r W a s h e r O u t s d ie W a s h e r W a s h e rO u t s d ie O u t s i d e F u ls h to T T h c ik n e s s h c ik n e s s D a ime t e r T h c ik n e s s D a im e t e r T h c ik n e s s D a im e t e r M n ius o e lr a n c eo f M a x . Min. M M a x . Min. T a x . Min. M a x . Min. M a x. Min. M a x . Min. M a x . Min. 0 . 0 1 6 0 . 0 1 0 0 . 1 8 0 0 . 1 7 0 0 . 0 16 0 . 0 1 0 0 . 1 8 0 0 . 1 7 0 0 . 0 1 6 0 . 0 1 0 0 . 1 8 0 0 . 1 7 0 0 . 0 1

4 0 0 . 0 1 6 0 . 0 1 0 0 . 0 1 6 0 . 0 0 9 0 . 0 1 9 . 2 0 5 0 . 1 9 5 0 . 0 10 0 . 2 0 5 0 . 1 9 5 0 . 0 1 6 0 . 0 1 0 0 . 2 0 5 0 . 1 9 5 0 . 0 1 4 0 0 . 01 8 0 . 0 1 2 0 . 0 1 8 0 . 0 0 9 0 . 0 2 2 . 2 3 0 0 . 2 2 0 0 . 0 1 2 0 . 2 30 0 . 2 2 0 0 . 0 1 8 0 . 0 1 2 0 . 2 3 0 0 . 2 2 0 . 0 1 4 0 . 0 2 0 0 . 0 1 50 . 0 1 9 0 0 . 0 2 0 0 . 0 1 4 0 . 2 5 5 0 . 0 2 0 0 . 2 5 5 0 . 2 4 5 0 . 0 14 0 . 2 5 5 0 . 2 4 5 0 . 2 4 5 0 . 0 2 4 . 0 1 6 0 . 0 2 0 0 0 . 0 2 2 0 . 2 70 0 . 0 2 2 0 0 . 0 2 6 . 3 1 7 0 . 0 1 6 0 . 2 8 5 0 . 0 1 6 0 . 2 8 5 0 . 2 70 0 . 0 2 2 0 . 3 0 6 . 0 1 6 0 . 0 1 6 0 . 0 2 0 0 0 . 0 4 7 . 2 7 0 0 . 0 2 20 0 . 0 2 2 0 . 3 1 7 0 . 0 1 6 0 . 2 8 5 0 . 0 2 2 0 . 0 1 6 0 . 2 8 5 0 . 2 70 0 . 3 0 6 . 0 1 6 0 . 0 1 6 0 . 0 3 0 0 . 0 2 0 0 . 3 0 5 0 . 0 2 3 0 . 0 2 30 . 3 1 7 0 0 . 0 2 3 0 . 0 1 8 0 . 3 2 0 0 . 0 1 8 0 . 3 2 0 0 . 3 0 5 0 . 3 06 . 0 1 8 0 0 . 0 3 6 . 0 1 9 0 . 0 2 5 0 . 3 6 5 0 . 0 2 4 0 0 . 0 2 4 0 . 0 24 0 0 . 4 0 6 . 0 1 8 0 , 3 8 1 0 . 0 1 8 0 . 3 8 1 0 . 3 6 5 0 . 3 9 5 0 . 0 1

8 0 . 0 4 1 . 0 1 9 0 . 0 2 5 0 . 0 2 7 0 0 . 0 2 7 0 . 3 9 5 0 . 0 2 7 0 . 4 06 0 . 0 2 0 0 . 4 1 0 0 . 0 2 0 0 . 4 1 0 0 . 3 9 5 0 . 3 9 5 . 0 2 0 0 . 0 1 90 . 0 2 5 0 0 . 0 4 7 . 5 1 0 0 . 4 9 4 0 . 0 2 8 0 . 0 2 3 0 . 4 7 5 0 . 5 6 7. 0 2 3 0 . 5 8 0 0 0 . 0 2 8 0 . 0 2 3 0 . 4 6 0 0 . 0 2 8 0 0 . 0 2 8 0 0 . 06 0 0 . 0 3 4 0 . 0 2 3 . 6 1 0 0 . 5 8 8 0 . 0 3 4 0 . 0 2 8 0 . 5 8 0 0 . 0 28 0 . 0 2 8 0 . 6 5 4 0 . 5 6 7 0 . 6 4 0 . 0 3 4 0 0 . 0 3 4 0 0 . 0 7 2 0 . 03 2 0 . 7 6 0 0 . 7 4 0 0 . 0 4 0 0 . 0 3 2 0 . 6 6 0 0 . 6 4 0 0 . 0 3 2 0 . 76 0 0 . 0 4 0 0 . 0 4 0 . 0 2 8 0 . 7 4 0Indentation optional'


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P a n Head Machine Screw

Fillister Head Type B Tapping Screw

H e xH e a d [Noted}] H e x Washer H e a d Type A B Tapping Type T Tapping ScrewScrew Representative Examples of internal Tooth Lock Washer S e m s

H e xC a p Screw

DIMENSIONS O F INTERNAL T O O T HL O C K W A S H E R SF O RS E M S P a n , Filister, H e x [Note (1)1. a n d H e xW a s h e r [Note (2)] H e a dS c r e w s N om i n a l W a s h e r S i z e [Note (3)] Outside D i a m e t e r W a s h e rT hi c k n e s s or B a s c i S c r e wD i a m e t e r M m . M a x . Min. M a x . 0. 1 7 5 2[ N o t e (2)] 0 . 0 8 6 0 0 . 0 1 6 0 . 0 1 0 0 . 1 8 5 3 [Note (2)]0 0 . 2 1 5 . 0 9 9 0 0 . 0 1 0 0 . 2 2 5 0 . 0 1 6 4 [Note ( 2 ) 1 0 0 . 2 5 80 . 0 1 8 0 . 0 1 2 0 , 2 6 8 . 1 1 2 0 5 [Note (2)] 0 0 . 2 5 8 0 . 0 1 8 0 . 01 2 0 . 2 6 8 . 1 2 5 0 0 . 2 7 8 6 0 . 1 3 8 0 0 . 0 2 2 0 . 0 1 6 0 . 2 8 8 70 . 2 7 8 0 . 1 5 1 0 0 . 0 2 2 0 . 0 1 6 0 . 2 8 8 0 . 3 2 7 8 0 . 1 6 4 0 0 .0 2 3 0 . 0 1 8 0 . 3 3 8 0 . 3 7 2 1 0 0 . 1 9 0 0 0 . 0 2 4 0 . 0 1 8 0 . 3 83 1 2 0 . 3 9 6 0 . 2 1 6 0 0 . 0 2 0 0 . 4 0 8 0 . 0 2 7 V 0 . 4 7 8 0 . 4 6 60 . 2 5 0 0 0 . 0 2 8 0 . 0 2 3 4 5 0 . 6 1 0 0 . 5 9 7 0 . 3 1 2 5 0 . 0 2 8 0. 0 3 4 Z 1 6 0 . 6 9 2 0 . 6 7 8 0 . 3 7 5 0 0 . 0 4 0 0 . 0 3 2 % G E N E R ALN O T E S : (a) F o r additional requirements, refer to S e c t i o n s2a n d4. (b) D i m e n s i o n s of internal tooth l o c kw a s h e r s applicable to

"not r e c o m m e n d e d for n e w design" status round and truss h e a ds c re ws e m sa n dT y p e sAa n d C tapping s c r e ws e m s are d o c u m e n t ed for r e f e r e n c ep u r p o s e s in A p p e n d i xC . N O T E S : O )T he regular trimmed or u p s e th e xh e a ds c r e w s shall a p p l ye x c e pt for s i z e sN o . 4, 5, 8, 12, a n d1 / 4 in., w h i c h shall h a v eu p s et large h e xh e a ds c r e w s .R e f e r to appropriate tables for h e xh e adm a c h n ie a n d tapping s c r e w s in A S M EB 1 8 . 6 . 3a n dA S M EB 18 . 6 . 4 , respectively. R e f e r to appropriate tables for h e xc a ps c r ew s in A S M E B18.2.1. (2) H e xw a s h e rh e a ds e m sa r e not available ins i z e s smaller than N o . 6. ( 3 )W h e r e specifying n o m i n a ls i z ein decimals, z e r o sp r e c e d i n g the d e c i m a la n d in the fourth p la c e shali b e omitted.

Reprinted from ASME B18.13a-1998, by permission of the American Society of Mechanical Engineers. All rights reserved.


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S E M

S t a n d a r d C r o w n h e i g h t

T a b l e s

(continued) Indentation optional

P a nH e a dT y p eA B T a p p n ig S c r e wa n d T y p eLR e g u a lr W a s he r

Filister H e a dT y p eB T a p p n ig S c r e wa n d T y p eLN a ro wW a s h e r

e xW a s h e rH e a dT y p e H e xH e a d! N o t e< 1 } j H TT a p p n ig S c re wa n d M a c h n ie S c r e w3 n d y p eHW d ie W a s h e r T y p eHR e g u alr W a s h e r T

H e xC a pS c r e w

R e p r e s e n t a t i v eE x a m p e l s of C o n i c a lS p r i n gW a s h erS e m s DIMENSIONS O FC O N I C A LS P R I N GW A S H E R SF O RS E M S Pan, Filister, H e x [Note {1}], H e xW a s h e rH e a d ,a n dH e xC a pS c r e w s Wa s h e r O u t s i d e T y p eHW a s h e r T y p eLW a s h e r C r o w n C r ow n H e i g h t Height T h i c k n e s s T h i c k n e s s a s c i M a x . Min.

M M a x . Min. B a x . Min. B a s c i M a x . Min. M a x . Min. . 0 2 5 0 . 0 15 . 0 4 0 0 . 0 3 3 0 . 0 2 5 0 . 0 3 5 0 . 0 2 5 0 . 0 2 9 0 . 0 2 3 0 0 . 3 20 0 . 3 0 7 0 . 0 1 5 0 . 0 2 5 0 . 0 3 7 0 . 0 1 5 . 0 4 6 0 . 0 4 0 0 . 0 3 00 . 0 3 4 0 . 0 2 8 0 0 . 4 4 6 0 . 4 3 3 0 . 0 2 5 0 . 0 1 5 0 . 0 3 7 0 . 0 29 0 . 0 1 9 . 0 2 1 0 . 0 4 0 0 . 0 4 6 0 . 0 3 0 0 . 0 3 4 0 . 0 2 8 0 0 . 5 70 0 . 5 5 7 0 . 0 3 1 0 . 0 1 5 . 0 2 5 0 . 0 4 6 0 . 0 3 7 0 . 0 3 5 0 . 0 4 00 . 0 3 3 0 0 . 3 8 3 0 . 3 7 0 0 . 0 2 5 0 . 0 1 5 0 . 0 4 0 0 . 0 1 6 . 0 2 60 . 0 5 0 0 . 0 4 2 0 . 0 3 5 0 . 0 4 0 0 . 0 3 3 0 0 . 5 0 8 0 . 4 9 5 0 . 0 30 0 . 0 2 0 0 . 0 4 5 0 . 0 3 0 . 0 4 0 0 . 0 5 0 0 . 0 4 2 0 . 0 3 7 0 . 0 2 70 . 0 4 5 0 . 0 3 5 0 . 0 4 0 0 . 0 3 3 0 0 . 6 4 0 0 . 6 2 0 0 . 0 1 5 . 0 4 70 . 0 2 5 0 . 0 5 0 0 . 0 5 6 0 . 0 3 5 0 . 0 4 0 0 . 0 3 3 0 0 . 4 4 6 0 . 0 25 0 . 0 1 5 0 . 4 3 3 0 . 0 1 6 . 0 2 6 0 . 0 5 2 0 . 0 5 5 0 . 0 6 0 0 . 0 4 00 . 0 4 6 0 . 0 3 7 0 0 . 5 7 0 0 . 0 2 7 0 . 0 1 7 0 . 5 5 7 0 . 0 2 4 . 0 3 4

0 . 0 5 5 0 . 0 6 0 0 . 0 5 2 0 . 0 4 0 0 . 0 4 6 0 . 0 3 7 0 . 0 3 6 0 . 0 2 60 0 . 7 6 5 0 . 7 4 3 0 . 0 1 5 . 0 2 5 0 . 0 6 0 0 . 0 5 2 0 . 0 4 0 0 . 0 4 60 . 0 3 7 0 0 . 4 4 6 0 . 4 3 3 0 . 0 2 5 0 . 0 1 5 0 . 0 5 5 0 . 0 2 6 0 . 0 16 . 0 6 0 0 . 0 5 2 0 . 0 4 0 0 . 0 4 6 0 . 0 3 7 0 0 . 6 4 0 0 . 0 5 5 0 . 6 20 0 . 0 3 3 0 . 0 2 3 0 . 0 3 3 0 . 0 2 3 . 0 6 4 0 . 0 7 1 0 . 0 5 9 0 . 0 5 00 . 0 4 2 0 0 . 8 9 0 0 . 0 4 4 0 . 0 3 4 0 . 8 6 8 0 . 0 4 5 0 . 0 1 5 . 0 7 10 . 0 5 9 0 . 0 2 5 0 . 0 6 4 0 . 0 5 0 0 . 0 4 2 0 0 . 5 1 5 0 . 4 9 5 0 . 0 25 0 . 0 1 5 0 . 0 4 5 0 . 0 2 2 . 0 8 7 0 . 0 7 4 0 . 0 3 2 0 . 0 5 6 0 . 0 4 70 0 . 7 6 5 0 . 7 4 3 0 . 0 7 9 0 . 0 3 3 0 . 0 2 3 0 . 0 5 0 0 . 0 2 9 . 0 8 70 . 0 7 4 0 . 0 3 9 0 . 0 8 0 0 . 0 5 2 0 1 . 0 1 5 0 . 9 9 3 0 . 0 4 0 0 . 0 30 0 . 0 7 9 0 . 0 5 5 0 . 0 1 6 . 0 2 6 0 . 0 2 6 0 . 0 1 6 0 . 0 7 9 0 . 0 8 70 . 0 7 4 0 . 0 5 5 0 . 0 6 0 0 . 0 5 2 0 0 . 6 4 0 0 . 6 2 0 0 . 0 1 9 . 0 2 90 . 0 9 0 0 . 0 6 4 0 . 0 5 9 0 0 . 8 9 0 0 . 0 4 1 0 . 0 3 1 0 . 0 9 5 0 . 1 0

3 0 . 8 6 8 0 . 0 7 1 0 . 0 3 0 . 0 9 0 0 . 0 4 0 0 . 0 6 4 0 . 0 5 9 0 . 0 4 40 . 0 3 4 0 . 0 9 5 0 . 1 0 3 0 . 1 1 8 0 . 0 7 1 0 1 . 1 4 0 1 . 0 1 5 . 1 0 30 . 0 9 0 0 . 0 2 5 0 . 0 7 1 0 . 0 7 9 0 . 0 2 5 0 . 0 1 5 0 . 0 9 5 0 . 7 4 30 . 0 6 6 0 0 . 7 6 5 0 . 0 2 3 . 1 1 2 0 . 0 3 3 0 . 1 2 6 0 . 0 7 1 0 . 0 7 90 . 0 6 6 0 . 0 4 3 0 . 0 3 3 0 . 1 1 8 0 . 9 9 3 0 1 . 0 1 5 0 . 0 3 5 . 1 1 20 . 0 4 5 0 . 1 2 6 0 . 0 7 9 0 . 0 8 7 0 . 0 7 4 0 . 0 4 7 0 . 0 3 7 0 . 1 1 80 . 2 4 3 0 1 . 2 6 5 1 . 0 1 6 . 1 2 2 0 . 0 2 6 0 . 1 2 8 0 . 1 3 6 0 . 0 7 90 . 8 6 8 0 . 0 8 7 0 . 0 7 4 0 . 0 2 8 0 . 0 1 8 0 0 . 8 9 0 0 . 0 3 8 0 . 0 28 . 1 2 2 0 . 1 2 8 0 . 1 3 6 0 . 0 9 5 0 . 0 9 0 0 . 0 3 1 0 . 0 4 1 0 . 1 1 80 . 1 0 3 0 1 . 1 4 0 1 0 . 0 4 9 0 . 0 3 9 0 . 0 4 9 0 . 1 3 2 0 . 1 4 0 0 . 1


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2 6 0 . 0 9 5 0 . 0 9 0 0 . 0 5 9 0 . 1 0 3 1 . 5 3 0 1 . 4 9 3 . 0 2 0 . 1 3 60 . 0 3 0 0 . 0 2 1 0 . 1 4 2 0 . 1 5 0 0 . 1 0 0 0 . 1 0 8 0 1 . 0 1 5 0 . 0 94 0 . 0 3 1 0 . 9 9 3 0 . 0 3 7 0 . 0 2 7 . 1 5 0 0 . 1 3 6 0 1 . 2 6 5 1 . 1 06 0 . 0 3 3 0 . 1 4 2 0 . 0 4 3 0 . 1 1 1 0 . 1 2 0 0 . 2 4 3 0 0 . 0 5 2 0 . 04 2 0 . 1 6 0 1 . 7 8 0 1 0 . 1 0 6 0 . 0 6 2 0 . 0 5 2 0 . 1 5 2 0 . 1 1 1 . 74 3 0 . 1 4 6 0 . 1 2 0

N o m i n a l S i z e [Note (2)] or B a s c i S c r e w D i a m e t e r 6 8 1 01 2 0 . 1 3 8 0 0 . 1 6 4 0 0 . 1 9 0 0 0 . 2 1 6 0

. 2 5 0 0 V 4 05

. 3 1 2 5 Z 1 6 0

3

. 3 7 5 0 Z 8 0 . 4 3 7 5 Z 1 6 0

7

. 5 0 0 0 V 2 0

W a s h e r S e r i e s N a r r o w R e g u l a r W d ie N a r r o w R e g u l a

r W d ie N a r r o w R e g u l a r W d ie N a r r o w R e g u l a r W d ie N ar r o w R e g u l a r W d ie N a r r o w R e g u l a r W d ie N a r r o w R e gu l a r W d ie N a r r o w R e g u l a r W d ie N a r r o w R e g u a lr W d ie


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131956414 Machine and Devices WASHERS

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Transcript of 131956414 Machine and Devices WASHERS