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 Driven
& Steerable Axle
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com2
Rigid Front Suspensions
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
3
Rigid Front Suspensions
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com4
Rigid Front Suspensions
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
*268 kg as bare, 305 kg with suspension legs
5
Independent Front Suspensions
All Types (Generation#1 & Generation#2)
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
▪ 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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
Generation #2
Generation #2
7
Independent Front Suspensions
All Types (Generation#1 & Generation#2)
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
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
RDA 65-175/A354 air bellows
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
RDA 65-195/A354 air bellows
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
Rear Drive Axles
Hypoid 90° Types
11
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
Rear Drive Axles
Inverted Portal Types
13
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
E-Drive
Independent & Driven 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
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
E-Drive
Independent & Driven 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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
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
BRIST Axle Systems S.r.l.
Via Mercanti, Trav.I, 17/19 25018, Montichiari (BS), Italy,
+39 030 9672610, www.bristaxle.com
All rights are reserved by BRIST Axle S.r.l.
E-Drive
Single Speed Transmission
17
For further details, please visit www.bristaxle.com
BRIST Axle Systems S.r.l.
Via Mercanti Traverse I, 17/19
25018
Montichiari, Brescia
Italy