Product Portfolio · Rear Drive Axles Z-Drive Types BRIST Z-Drive is a unique configuration specifically developed for buses with the engine installed in transversal layout to shorten

Product Portfolio

Portfolio Overview

▪ BRIST is covering a wide range of products with many front & rear bundling options

BRIST Axle Systems S.r.l.

Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,

+39 030 9672610, www.bristaxle.com1

Category Sub-Category Rim Size 17.5" Rim Size 19.5" Rim Size 22.5"

Rigid Front

Suspensions

Traditional

Deep Drop

Independent

Front

Suspensions

Generation #1

Generation #2

Rear Drive

Axles

Z-Drive

Hypoid (90°)

Inverted Portal

E-Drive

Solutions

Independent Drive

Axles

Single Speed

Transmission

Rigid Front Suspensions

Traditional Types

▪ BRIST offers different versions of rigid front suspensions varying from 4.1t to 6.0t axle

loading, which are widely used for midi-buses and light / medium trucks

▪ Amongst competitors, BRIST rigid front suspensions differentiates through its optimized

axle weight, customized drop center and compact wheel-ends with unitized hub bearing

▪ Significantly low warranty claims recorded over the last 10 years prove the success of

BRIST rigid front suspensions in field





Traditional Types

TypeMaximum

Axle LoadVehicle Width

Distance

between

Leaf Spring

Pads

Maximum

Wheel

Steering

Angle

Axle

WeightWheel Size

RFS 41-175

(Truck)4,100 kgf 2,050 - 2,100 mm 790 mm 50° 212 kg

17.5″x6″

Bolt Circle 222

RFS 41-175

(Bus)4,100 kgf 2,250 - 2,300 mm 880 mm 50° 219 kg

17.5″x6.75″

Bolt Circle 222

RFS 45-175

(Bus)4,500 kgf 2,250 - 2,300 mm 880 mm 50° 227 kg

17.5″x6″

Bolt Circle 245

RFS 55-195 5,500 kgf 2,300 - 2,400 mm 790 mm 55° 297 kg19.5″x7.5″

Bolt Circle 275

RFS 60-175

(Bus)6,000 kgf 2,250 - 2,300 mm 792 mm 45° 244 kg

17.5"x6.75"

Bolt Circle 275

RFS 60-195

(Bus)6,000 kgf 2,400 mm 792 mm 45° 303 kg

19.5"x7.5″

Bolt Circle 275

Versions



+39 030 9672610, www.bristaxle.com

All rights are reserved by BRIST Axle S.r.l.

3


Deep Drop Types

▪ BRIST offers different versions of rigid deep drop varying from 4.2t to 5.5t axle loading,

which are widely used are city-bus like applications, ready to fit to chassis.

▪ Compromising the gap between engine sump and axle beam, and certain level of ground

clearance; deep drop versions have been engineered to fit into the tight space, avoiding

any collision of engine at its lowered position for flat floor passage in front.

▪ BRIST deep drops have proven its performance in most difficult climate and terrain

conditions such as Uzbekistan, Tajikistan and Turkey





Deep Drop Types

TypeMaximum

Axle LoadVehicle Width

Drop

Value

Distance

between

Leaf Spring

Pads

Maximum

Wheel

Steering

Angle

Axle

WeightWheel Size

RDD 42-175 4,200 kgf 2,350 – 2,400 mm 167 mm 1,100 mm 53° 255 kg17.5″x6″

Bolt Circle 245

RDD 45-175 4,500 kgf 2,400 – 2,450 mm 114 mm 1,440 mm 51°268 to

305* kg

17.5″x6″

Bolt Circle 205

RDD 55-195 5,500 kgf 2,400 – 2,450 mm 145 mm 1,362 mm 52° 320 kg19,5”x7,5”

Bolt circle 275

Versions





*268 kg as bare, 305 kg with suspension legs

5

Independent Front Suspensions

All Types (Generation#1 & Generation#2)




▪ BRIST offers different versions of independent front suspensions varying from 4.1t to 8.1t

axle loading, which are specifically optimized for bus & coach applications

▪ Extra light system weight, optimized scrub radius and compact packaging dimension in

height (low silhouette) are other key features of BRIST independent front suspensions

6

TypeMaximum

Axle Load

Typical

Vehicle

Length

Maximum

Tire SizeWheel Cut

Wheel

Travel

Axle

WeightWheel Size

IFS TJ 41-175 4,100 kgf 6-8 m 235/75 R17.5″ 54°/42.5 ± 80 27817.5″x6.75″

Bolt Circle 205

IFS TJC 55-195 5,500 kgf 7-9 m 265/70 R19.5″ 55°/44° ± 90 38019.5″x7.5″

Bolt Circle 275

IFS TJ 55-195 5,500 kgf 7-9 m 265/70 R19.5″ 55°/43° ± 85 41219.5″x7.5″

Bolt Circle 275

IFS TJ 58-225 5,800 kgf 8-10 m 275/70 R22.5″ 55°/45° ± 90 46922.5″x7.5″

Bolt Circle 335

IFS TJC 80-225 8,000 kgf 10-18 m 315/70 R22.5″ 55°/49° ± 90 46022.5″x9″

Bolt Circle 319

IFS TJ 81-225 8,100 kgf 10-18 m 315/70 R22.5″ 55°/45° ± 90 47822.5″x9″

Bolt Circle 335

Versions





Generation #2

Generation #2

7

Independent Front Suspensions

All Types (Generation#1 & Generation#2)

Generation #2

Generation #1

Generation #1

Generation #1




Rear Drive Axles

Z-Drive Types

▪ BRIST Z-Drive is a unique configuration specifically developed for buses with the engine

installed in transversal layout to shorten rear overhang, which brings optimized seat

configuration and optimized weight for the bus

▪ Z-Drive axle is supplied with its Angle Drive Unit at the same input flange angle (35°)

8

TypeMax Axle

Load

Wheel

Travel

Axle Gear

Ratio

Diff.

Offset

Maximum

Tire Size

Suspension

Type

Axle

Weightw/o oil

Wheel Size

RDA 65-175/A352 air bellows

6,500 kgf ± 854.45:1

3.85:173 mm 245/75 R17.5″

Air / leaf

spring

suspension

2 bellows

412 kg

as bare

17.5×6.75

Bolt Circle

205


6,500 kgf ± 854.45:1

3.85:1192 mm 245/75 R17.5″

Air

suspension

4 bellows

469 kg as bare

600 kg as fully

dressed

17.5×6.75

Bolt Circle

205


6,500 kgf ± 854.45:1

3.85:1192 mm 225/70 R19.5″

Air

suspension

4 bellows

469 kg as bare

600 kg as fully

dressed

19.5×6.75

Bolt Circle

275

Versions





Rear Drive Axles

Z-Drive Types

TypeMax Engine

Power

Max Input

Speed

Max Input

TorqueGear Ratio Weight

w/o oilOil Capacity

ADU 65/A35 150 kW 4,500 rpm 4,590 Nm 0.967:1 64 kg 3.0 l

Angle Drive Unit

9




Rear Drive Axles

Hypoid 90° Types

▪ BRIST rear drive axle 90° might be used in both rear and front engine options

▪ This axle can also be supplied as fully dressed with suspension

(half leaf-spring integrated with single air-spring)

10

TypeMax Axle

Load

Tilting

Angle

Diff.

Input

Angle

Axle Gear

Ratio

Maximum

Tire Size

Axle

Weightw/o oil

Wheel Size

RDA 65-175/A90v1

6,550 kgf 3.5° 90° 5.29:1215/75 R17.5″

twin711 kg

17.5×6.00″

Bolt Circle 205

RDA 65-175/A90v2

6,550 kgf 0° 90° 4.26:1215/75 R17.5″

twin678 kg

17.5×6.00″

Bolt Circle 245

Versions





Rear Drive Axles

Hypoid 90° Types

11




Rear Drive Axles

Inverted Portal Types

▪ BRIST inverted portal axles are developed specifically for mid-size LF buses, which offer

maximum corridor width, higher ground clearance provided with radial brakes and compact

dimension in height and less system weight with 10.4t loading capacity

▪ BRIST inverted portal axles are available at 75°, 80° and 90° input shaft angles

12

TypeMax Axle

Load

Max Output

Torque

Tilting

Angle

Diff.

Input

Angle

Axle Gear

Ratio

Axle

Weightw/o oil

Maximum

Tire SizeWheel Size

BRA104-195 DC/A75

10,400 kgf 35,000 Nm 7° 75° 4.86:1 711 kg265/70 R19.5″

twin

19.5″x7.5″

Bolt Circle 275

BRA104-195 DC/A80

10,400 kgf 35,000 Nm 7° 80° 4.86:1 711 kg265/70 R19.5″

twin

19.5″x7.5″

Bolt Circle 275

BRA104-195

DC/A9010,400 kgf 35,000 Nm 7° 90° 4.86:1 711 kg

265/70 R19.5″

twin

19.5″x7.5″

Bolt Circle 275

Versions





Rear Drive Axles

Inverted Portal Types

13




E-Drive

Independent Drive Axles

▪ BRIST independent, driven and –optionally- steerable axle (IDS TJ 90-225) offers excellent

drivability, compact packaging and great manoeuvrability features, that make a perfect fit

for super LF electric bus applications

▪ BRIST’s state of the art independent drive suspension (IDS TJ 45-175) is specifically

developed for EV logistics truck applications in AWD configuration as well as 4×2. Upon

request, this axle can be supplied with or w/o steering depends on vehicle layout. Rear

steering is also an option.

IDS TJ 45-175 IDS TJ 90-225

14

IDS TJ 105-225

TypeMax Axle

Load

Gear

Box

Ratio

Max Wheel

Steering

Angle

Diff.

Input

Angle

Max Tire

Size

Axle

Weightw/o eDrive

pack

Electric Motor Brake Type

IDS TJ 45-175 4,500 kgf 1:7 37.8° / 47.9° 75°235/75

R17.5”287 kg

1 motor x 200Nm (per wheel)

5,600 rpm max

Air brake,

ventilated

brake rotor

IDS TJ 90-225 9,000 kgf 18:1optional rear

steering80°

385/55

R22.5”580 kg

2 motor x 300Nm (per wheel)

10,500 rpm max

2x75kW cont power

Air brake,

ventilated

brake rotor

Versions





E-Drive

Independent Drive Axles

TypeMax Axle

Load

Max

Wheel

Steering

Angle

Wheel

Travel

Max Tire

Size

Axle

Weight

Diff.

Ratio

Hub

Reduction

Ratio

Product Imagew/o hub reduction

IDS TJ 105-225 10,500 kgf 35° ± 90385/55

R22.5”574 kg 5.29:1 n/a

IDS TJ 105-225 HR

10,500 kgf 35° ± 90385/55

R22.5”650 kg

2.23:1

1.50:1

4.00:1

5.067:1

15




E-Drive

Single Speed Transmission

▪ BRIST electric drive single speed transmission is a good fit for the front wheeled vehicles

with the engine installed in transversal configuration, at high gear ratio

▪ Single speed transmission is available at 2 different gear ratios for electric vehicle

applications with an option of disengagement feature for 4WD

16

Parameters Values

Maximum Input Torque 340 Nm

Permissible Maximum Input Speed 11,400 rpm

Gear Ratio 18.47:1 or 12.39:1

Continuous Power 75 kW

Maximum Power 125 kW

Continuous Torque 150 Nm

Input Shaft External Splinedirect mounted e-motor

ANSI B92.1 21Zx25.4/50.8x45

Output Hub Spineto the half shafts

ANSI B92.1 31Zx23/48x37.5

Central Bevel Gear Axle Diff. 50:50 (not lockable)

Centering and Sealing of Half Shafts Integrated 2.7l (oil type Shell S6 GXME 75W80)

Oil Capacity 45 kg (w/o oil)

Versions





E-Drive

Single Speed Transmission

17

For further details, please visit www.bristaxle.com


Via Mercanti Traverse I, 17/19

25018

Montichiari, Brescia

Italy

http://www.bristaxle.com/

Documents

Product Portfolio · Rear Drive Axles Z-Drive Types BRIST Z-Drive is a unique configuration specifically developed for buses with the engine installed in transversal layout to shorten