Product Challenge

DODGE Imperial Bearings

IMPERIAL®

• Product overview and offerings

• IMPERIAL advantages

• Interchangeability

• Competitive comparison

• Selection

• TCO Opportunities

• Summary

Product Challenge

Contents

RAPS-339-2

Imperial Product Size

Range

• 2 and 4 bolt pillow blocks

1 1/8” - 5”

• 4 bolt flanges 1

1/8” - 4”

• Piloted flanges 1

1/8” - 5”

• Wide slot take ups

1 1/8” - 4”

• ISAF

1-7/16” - 7”

• ISN (Metric)

30mm - 125mm

Single snap ring

movable for

expansion

Constant

pressure

rubber seal

Aluminiz

ed steel

flinger

Steel

Window type

outer ring

riding cage

Imperial Spherical Roller

Bearings

Patented Imperial Adapter

System

• The world’s only

push to

mount/pull to

demount adapter

mount system

• Single side

access with

positive locking

• Easy and fast

clearance setting

without the use of

feeler gauges

• 15 minute

installation or

removal

• Built-in bearing

puller!

After only 500

hours in

service, a

setscrew

mounted

bearing will

leave shaft

corrosion and

scarring

After 2500 hours

in service the

IMPERIAL

Bearing

demounts quickly

an reveals no

shaft fretting

corrosion or

scarring from

setscrews

Locking Method Reduces Fretting

Steel Cage

Offers

Precision

Roller

Guidance

Patented Nitrile

Multiple Lip

Seal Resists

Heat and

Chemical

Breakdown

Adapter Sleeve

Improves

Concentricity

and Reduces

Inherent

Vibration

Ease in

Mounting

and

Dismounting

Achieved

through

Patented

Adapter

System

Corrosion

Resistant

Flinger

Blocks

Contaminan

ts

Tapered Seal

Land

Maintains Full

Seal Contact

when

Misaligned

Metallic

Clearance

Seal and Steel

Cage provide

High

Temperature

and High

Speed

Capabilities

Imperial Bearing

Insert

Trident triple lip rubbing seal

– Patented seal configuration

– Flinger to shield seal and bearing from

contamination/damage

– Harsh duty auxiliary seal for wet or dirty environments

– Face rubbing and triple lip land riding seals

– Up to 1 degree misalignment with constant seal pressure

– Seal internal to bearing assembly

Labyrinth seal (High Speed / High Temperature)

– Flinger to shield seal and bearing from

contamination/damage

– High speed for relatively clean or hot environments

– 15% increase in maximum speed over standard SAF adapter mounted spherical bearings

– Seal internal to bearing assembly

Imperial is available with two seal

configurations

Imperial Seal

Configurations

IMPERIAL

Shaft centered in

bearing Concentric

gripping force

Commercial shafting

acceptable Ground and

sphered seal surface

Set Screw Mount

Shaft offset in housing bore

Set screws indent and damage

shaft Turned and ground

shafting recommended

IMPERIAL AdvantagesUp to 25% lower operating temperature

Grease limiting speeds 30% greater than set screw Bearing can be removed from service quicklyConstant positive seal contact on ground and

sphered surface

Comparison

Results

Imperial Advantages vs. Set

Screw

DODGE S-2000 Rex ZA

SKF SYR SKF Concentra

Link-Belt Max Mount Link-Belt PB22400

SealMaster Sleevloc

Browning Eccentric Lock

Dimension

ally

Interchang

eable

IMPERIAL IP

SERIES

Imperial

Interchangeability

• Serrated sleeve OD and

bearing bore provide drive-up

surfaces (with 1:3 taper)

• Non-uniform load distribution

results in increased fretting

• SKF speed limits average 74%

of

IMPERIAL / ISAF

• SKF capacities average 85% of

IMPERIAL / ISAF

• Difficult to access removal

screws on backside of product

(especially flange product)

• Difficult to change from

expansion to non-expansion

• Difficult to assemble, 8 times

longer than IMPERIAL as

reported by customers

SKF Concentra

SealMaster

Sleevloc

Competitive

Comparison

• IMPERIAL / ISAF

speed limits average

142% greater

• IMPERIAL / ISAF

capacity average 113%

greater

• SAF type screw-nut-

washer adapter, 1:12

taper

• Similar mounting

method as IMPERIAL

• Spring-disc Type “H”

seal and spring loaded

Type “E” rubber lip

contact seal

• No dismounting

feature

Link-Belt Max

Mount

Competitive

Comparison

B22600

Series

Browning 1001 /

1101

• Eccentric collar - NOT an adapter

mount product

• Housings are Browning’s 1000

cast iron (1001) & 1100 ductile iron

(1101) series housings

• Eccentric locking bearings cannot

be used for reversing applications

• Cam interfaces subject to fretting

and potential fracture

• Force used to lock bearing to the

shaft is subjective

• Speed limits are comparable with

IMPERIAL / ISAF

• Capacities average 84% of

IMPERIAL / ISAF

Competitive

Comparison

• Shipped installation ready and

requires no component assembly

• Clearance setting is accomplished

by turning the nut a specific

distance past the zero point

• All Imperials available in expansion

& non-expansion

TCO Opportunity - Installation

IMPERIAL® Selection

P2B IP

Housin

g StyleBeari

ng

Type

Siz

e

P2B = 2 bolt pillow block

P4B = 4 bolt pillow block

FC = piloted flange

F4S = 4 bolt flange, square

F3R = 3 bolt flange, round

WSTU = wide slot take up

IP =

IMPERIALIn inches

2 = 2” and 16ths

07 = 7/16”

207E

Seal /

Expans

ion

R = Trident

Seal

L=

Labyrinth

Seal

E =

expansion

Non

expansion

left blank

Imperial Summary

• Dodge Imperial

available in a wide

range of sizes and

housings

• Dodge Imperial

patented adapter

system reduces

installation time and

prevents set screw

damage to the shaft

• Dodge Imperial has

advantages over and is

interchangeable with

many competitor

bearings