all about lubrication & greasing

7/28/2019 All About Lubrication & Greasing

1/10

The TataPower Co.Ltd.

MMD, TPDDL,Delhi

Presentaion By :-

J i tendra J enaThe TataPower Co.Ltd.

MMD, TPDDL,Delhi

L UBRICATIO N

&

G REAS ING
http://www.go2pdf.com/


2/10


3/10

What is a Grease?

Lubricating Grease- A solid to semi-fluid product

of a dispersion of a thickening agent in a Liquid

Lubricant. Additives imparting special properties

may be included.

Grease

But in anycase, greases certainly look nicer than liquid lubricants


4/10

Greases may not reach all

places in need of lubrication Greases do not have any

cleaning effect

Greases do not work ascooling agent

Greases cannot be used atas high speeds as liquids

Greases stay put

Greases seal outcontaminants

Greases do not needcirculation systems

Greases decrease dripping,splattering and leakage

Greases suspend solid

additives easily Greases are suitable for

intermittent operations

Greases work under extremeoperating conditions

Greases seal for life

Greases reduce noise

Greased machinery

tends to need less power

Using greases for lubricationsome advantages: some dis-advantages:


5/10

Anit-wear ,Rust & Corrosion Inhibitors,EP,Tackiness ,Anti-oxidants, Polymers,Dyes

Composition

SoapLithium, Sodium, Barium, Calcium,

AluminumNon-Soap (inorganic)

Clay, Graphite, Silica

Carbon Black

Non-Soap (organic)

Polyurea, PTFE, Wax

Petroleum Oils ,Polyalpha Olefins (PAO) ,Polybutenes,Esters,Polyglycols ,Polyethers ,Silicones ,PFPE


6/10

Dropping Point


7/10

Generally used Industrial Grease

Servogem 2 ,3 Servogem EP 00,0

Servogem EP 0 (N)

Servogem EP 1,2

Servogem EP 2 ( C )

Servogem EP 2 (S)

Servogem HT

Servogem HTXX

Servogrease WR 1(B)

Servogrease WR 2

Servogrease WR 2(B)

Lithon 2,3,EP1,EP2 Lithon M2 Li Soap

Lithoplex 1, 2,3

LI MPLEX 0,1,2 Ca Soap

PLUTEK 1,2 No Soap

Castrol LM 2 Grease

Castrol AP3 Grease

Castrol EPL 0 ,1,2,3 Grease Castrol LMM Grease


8/10

NLGINumber

ASTM WorkedPenetration

Consistency

000 445 - 475 Semi-fluid

(Ketchup)

00 400 - 430 Semi-fluid

(Applesauce)

0 355 385 Very soft (Deli

Mustard)

1 310 340 Soft (Tomato

Paste)

2 265 295 Common Grease (Peanut

Butter)

3 220 250 Semi-hard (Solid

Shortening)

4 175 205 Hard (Frozen

Yogurt)

5 130 160 Very Hard (Hard

Butter)

6 85 - 115 Solid (Brick Cheddar

Cheese)


9/10

Major considerations

Consistency ( NLGI No 2 for ball, 0 & 1 for roller

bearings, 00 for gear boxes)

Drop Point ( Phase transfer )

Oil Viscosity ( Decides to lubricate or not )

Never mix in-compatible grease

Grease after mounting the bearing

Right quantity of grease is as important as right

type of grease.

Re-lubrication quantity

Gq ( Grams) = 0.005 * D*B D = Bearing OD in mm , B = Total Bearing width in mm


10/10

all about lubrication & greasing

Documents