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You are here: Home » OILLESS BEARING

OILLESS BEARING

WHAT IS AN OILLESS BEARING?

A bearing that can improve productivity and save cost/time by having the material properties which can withstand both high & low temperature, corrosive environment, foreign particles, and impact load. There are various kinds of shapes and materials for oil less bearings such as metal, plastic and ceramic.

■ STRUCTURE
Sintered layer including solid lubricant and oil impregnated pores & Backing steel.■ FEATURES

  • Uniformly spread solid lubricant is available to be used for any motion.
  • Highly operational even to fine and minute movement.
  • Available to use without lubrication.
  • Excellent for high load and speed with good abrasion-resistance.
  • Standard product can be purchased immediately, and material for additional processing is also available.
  • Stock materials may be processed and then must be impregnated in the lubricant before use.
  • If it is used for the first time or has not been used for a long time, lubrication is necessary before using.

■ WEAR AMOUNT TEST
1. Contact pressure: 250kgf/cm2
2. Velocity: 9m/min
3. Test Time: 250h
4. Mating Material: JIS S45C + HRC 50

Advantage & Disadvantage of Oilless Bearing

Dry lubrication (using solid lubricant)

Liquid lubrication (using oil or water)

Advantage

o Available to being used in high & low temperature

o Available to being used in corrosive environment

o High load and low speed condition where oiling is useless, liner
motion, angular pitching motion, imp active load and ideal in discontinuous
motion

o Light or medium load and high speed

o Liquid lubrication prevent friction between metal to metal by
forming oil film with continuously rotating by centrifugal force in the
clearance of shaft and housing

Disadvantage

o Not supposed to be used inhigh speed when it is using in soilless condition

o Using it in high speed condition may occur seizure or shorten life cycle of bearing because solid lubricant has higher friction coefficient
than liquid lubricant

o Regular oiling is required

o Cannot be used in high & low emperature

o Cannot be used in corrosive environment

o Not proper to be used in high & load speed as oil film is hard to be formed, imp active load, angular pitching motion, discontinuous motion

o Not proper to be used in high load & high speed (shorten life cycle of bearing because of heavy PV value)

Base metal and its use

CODE

SP

HP

BP

AL

B

F

SUS

S

BASE METAL

High
strength
Brass casting

Special high strength Brass casting

Brass
casting

Aluminum
Bronze casting

Bronze
casting

Cast Iron

Stainless
Steel

Steel

USE

General

Higher
load and pressure than SP

General

General

General

High
temperature

Chemical
resistance

High
pressure

High
pressure

Low load

seawater

High
speed

High
temperature

Shock
resistance

underwater

underwater

Solid Lubricant type

USE

CODE

USE

CODE

High pressure, sea water

SL5

High temperature

SL1

Underwater, Eco-friendly

SL7

General

SL2

Underwater

SL4

DEVELON BEARING
Develon is steel-backed sintered metal bearing with excellent wear-resistance for heavy load and low/mid velocity under harsh environment of shock and vibration.

■ MECHANICAL AND PHYSICAL PROPERTIES

1

DEVELON

SGO #500

■ MECHANICAL AND PHYSICAL PROPERTIES

2

SGO-500

Manufacturing Process - SGO#500

■ Full production line from raw material to finished parts.

1. Raw Material

2. Melting

3. Checking for Compositon and Hardness while Melting

4. Continuous Casting Billet & Cutting

5. Prepare Extruding

6. Extruding & Storing Material

7. Cutting & Drilling

8. Inserting Plugs & Machining

9. Impregnating & Inspecting

10. Packing & Storing

Main Application

 

  • Plastic Injection Molding Machines

3

 

  • Power Plants

4

 

  • Molds

5

 

  • Construction Machinery

6

 

  • Hydraulic Press Machine

7

  • Steel Production Facilities

High Temperature Conditions

Steel mills

Furnace drag outs

Drying equipment’s

Roasters

Heat exchangers

8

  • Automobile Manufacturing

Press dies

Welding assembly lines

Painting & drying lines

Chain conveyers

Machine tools

auto

 

 

 

 

 

  • water Resisting

Dam gates

Submersible pumps

Hydro – electric structures

Offshore structures

Dock and dredge equipment

DAM

 

 

 

 

 

  • Vessels

Deck cranes

Winches

Hatch covers

Rudder arms

Derrick & hoisting equipment

Vessels

 

 

 

 

 

  • Anti – chemical

Chemical plants

Plating equipment

Waste water treat equip

Drying machines

Oil & chemical refinery equipment

Anti – chemical

 

  • Heavy Industries

Steel tube plant machinery

Tire & paper mills

Power generating station

Toggle link bearings for injection mold machinery

Heavy Industries

 

 

 

 

 

 

  • Bridge & Elevated Rail

Bridge bearing

Plate girder , truss , suspension

Nuclear related reactor supports

Steam generator supports

New Picture (19)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Definitions/Questions

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High Voltage

Power Supply 

 

 

 

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Relative sites:

kraftpowercon.com

sgoilless.co.kr

iranplating.ir/CMS

www.ica.ir

cementassociation.ir

steeliran.org

isipo.ir

tehraniec.ir

 

* Head office: Unit 7- 3rd floor -No 4, 5th kuhestan- Pasdaran St., Tehran , IRAN
* Sales office: Unit 5- 3rd floor -No 3, 5th kuhestan- Pasdaran St., Tehran , IRAN
Head office: (+98)21 - 22814030
                    22290825
                    22290793 (Fax)
Sales office: (+98)21 - 26110941                                                      22290793(Fax)                  
info@nokiantrading.com
support@nokiantrading.com

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