Products

BRIST‘s unique modular design and patented T-joint concept of independent front suspension reduces unsprung weight whilst increasing steering angle.

BRIST Axle offers a complete package of front&rear drive axles from diversified range, aiming to fulfil mostly all the customers’ technical requirements in unique and customized configurations, at most economical scale.

Overview to Our Product Portfolio
Newcomers Existing N/A
RFS IFS Real Drive Axel E-Drive Solution
Traditional Deep Drop Traditional New Generation Z-Drive Inverted Portal Driven & Steered Non-Drived & Steered Driven & Steered (Low Floor)
17,5″ N/A N/A
19,5″ N/A N/A
22,5″ N/A N/A with & without hub reduction (single / dual reduction)
RFS
Traditional Deep Drop
17,5″
19,5″ N/A
22,5″ N/A
IFS
Traditional New Generation
17,5″
19,5″
22,5″
Real Drive Axel
Z-Drive Inverted Portal
17,5″ N/A
19,5″ N/A
22,5″ N/A
E-Drive Solution
Driven & Steered Non-Drived & Steered Driven & Steered (Low Floor)
17,5″ N/A
19,5″
22,5″ with & without hub reduction (single / dual reduction)
  • Ⅰ.A. IFS (Independent Front Suspension) – Traditional

As known, IFS -the latest in axle technology for city buses and coaches offers improved roll stability, better comfort at ride & handling and wider aisle corridors compared to rigid suspensions.

BRIST independent front suspensions for “maintenance-free” concept based on patented T-joint design avoids the need of installing central lubrication system for greasing nipples. (Cost saving)

Type Axle Load Max. Typical Vehicle Length Tire Size Max. Wheel Cut Wheel Travel Axle Weight Wheel Size Brake Type
  IFS TJ41-175 4.100 kg 6 to 8 m 235/75 R17.5″ 54°/42.5° ± 80 mm 278 kg 17.5″x6,75″ Bolt Circle 205 mm Air Disc
  IFS TJ55-195 5.500 kg 7 to 9 m 265/70 R19,5″ 55°/43° ± 85 mm 412 kg 19.5″x7,5″ Bolt Circle 275 mm Air Disc
  IFS TJ58-225 5.800 kg 8 to 10 m 275/70 R22,5″ 55°/45° ± 90 mm 469 kg 22.5″x7,5″ Bolt Circle 335 mm Air Disc
  IFS TJ81-225 8.100 kg 10 to 18 m 315/70 R22,5″ 55°/45° ± 90 mm 478 kg 22.5″x9″ Bolt Circle 335 mm Air Disc
IFS TJ41-175
Axle Load Max. 4.100 kg
Typical Vehicle Length 6 to 8 m
Tire Size Max. 235/75 R17.5″
Wheel Cut 54°/42.5°
Wheel Travel ± 80 mm
Axle Weight 278 kg
Wheel Size 17.5″x6,75″ Bolt Circle 205mm
Brake Type Air Disc
IFS TJ55-195
Axle Load Max. 5.500 kg
Typical Vehicle Length 7 to 9 m
Tire Size Max. 265/70 R19,5″
Wheel Cut 55°/43°
Wheel Travel ± 85 mm
Axle Weight 412 kg
Wheel Size 19.5″x7,5″ Bolt Circle 275mm
Brake Type Air Disc
IFS TJ58-225
Axle Load Max. 5.800 kg
Typical Vehicle Length 8 to 10 m
Tire Size Max. 275/70 R22,5″
Wheel Cut 55°/45°
Wheel Travel ± 90 mm
Axle Weight 469 kg
Wheel Size 22.5″x7,5″ Bolt Circle 335mm
Brake Type Air Disc
IFS TJ81-225
Axle Load Max. 8.100 kg
Typical Vehicle Length 10 to 18 m
Tire Size Max. 315/70 R22,5″
Wheel Cut 55°/45°
Wheel Travel ± 90 mm
Axle Weight 478 kg
Wheel Size 22.5″x9″ Bolt Circle 335mm
Brake Type Air Disc
  • Ⅰ.B. IFS (Independent Front Suspension) – New Generation

 

Extra light system weight, optimized scrub radius, compact packaging dimension in height (low silhouette), weight-optimized steering mechanism and innovative Upper and Lower T- joints in multifunction (BRIST patent pended) are the key features of “New Generation” Independent Front Suspensions have been re-designed in new kinematics.
Type Axle Load Max. Typical Vehicle Length Tire Size Max. Wheel Cut Wheel Travel Axle Weight Wheel Size Brake Type
  IFS TJ55-195 H 5.500kg 7 to 9 m 265/70 R19,5″ 55°/44° ± 90 mm 380 kg 19.5″x7,5″ Bolt Circle 275 mm Air Disc
  IFS TJ81-225 H 8000 kg 10 to 18 m 315/70 R22,5″ 55°/49° ± 90 mm 460 kg 22.5″x9″ Bolt Circle 319mm Air Disc
IFS TJ55-195 H
Axle Load Max. 5.500kg
Typical Vehicle Length 7 to 9 m
Tire Size Max. 265/70 R19,5″
Wheel Cut 55°/44°
Wheel Travel ± 90 mm
Axle Weight 380 kg
Wheel Size 19.5″x7,5″ Bolt Circle 275mm
Brake Type Air Disc
IFS TJ81-225 H
Axle Load Max. 8000 kg
Typical Vehicle Length 10 to 18 m
Tire Size Max. 315/70 R22,5″
Wheel Cut 55°/49°
Wheel Travel ± 90 mm
Axle Weight 460 kg
Wheel Size 22.5″x9″ Bolt Circle 319mm
Brake Type Air Disc
  • Ⅱ.A. RFS (Rigid Front Suspension) – Traditional

With optimized axle weight, customised drop centre and unitized hub bearing; BRIST rigid axles from 4,1t to 5,5t Front Axle Weight (FAW) are widely used on midi-buses and light/medium range trucks successfully. We are proud of significantly low warranty claims from the field.

Type Axle Load Max. Vehicle Width Distance Between Leaf Spring Pads Wheel Steering Angle Max. Axle Weight Wheel Size Brake Type
  RFS 41-17 (TRUCK) 4.100 kg 2.050/2.100 mm 790 mm 50° 212 kg 17.5″x6″ Bolt Circle 222 mm Air Disc
  RFS 41-175 (BUS) 4.100 kg 2.250/2.300 mm 790 mm 50° 219 kg 17.5″x6,75″ Bolt Circle 222 mm Air Disc
  RFS 45-175 (BUS) 4.500 kg 2.250/2.300 mm 880 mm 50° 227 kg 17.5″x6,75″ Bolt Circle 245 mm Air Disc
  RFS 55-195 5.500 kg 2.300/2.400 mm 790 mm 55° 297 kg 19.5″x7,5″ Bolt Circle 275 mm Air Disc
RFS 41-17 (TRUCK)
Axle Load Max. 4.100 kg
Vehicle Width 2.050/2.100 mm
Distance Between Leaf Spring Pads 790 mm
Wheel Steering Angle Max. 50°
Axle Weight 212 kg
Wheel Size 17.5″x6″ Bolt Circle 222 mm
Brake Type Air Disc
RFS 41-175 (BUS)
Axle Load Max. 4.100 kg
Vehicle Width 2.250/2.300 mm
Distance Between Leaf Spring Pads 790 mm
Wheel Steering Angle Max. 50°
Axle Weight 219 kg
Wheel Size 17.5″x6,75″ Bolt Circle 222 mm
Brake Type Air Disc
>RFS 45-175 (BUS)
Axle Load Max. 4.500 kg
Vehicle Width 2.250/2.300 mm
Distance Between Leaf Spring Pads 880 mm
Wheel Steering Angle Max. 50°
Axle Weight 227 kg
Wheel Size 17.5″x6,75″ Bolt Circle 245 mm
Brake Type Air Disc
RFS 55-195
Axle Load Max. 5.500 kg
Vehicle Width 2.300/2.400 mm
Distance Between Leaf Spring Pads 790 mm
Wheel Steering Angle Max. 55°
Axle Weight 297 kg
Wheel Size 19.5″x7,5″ Bolt Circle 275 mm
Brake Type Air Disc
  • Ⅱ.B. RFS (Rigid Front Suspension) – Deep Drop Rigid

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 limited space, avoiding any collision at lowered engine position for flat floor passage in front. Deep drop products are available for City-bus like applications, ready to fit to chassis.

Type Axle Load Max. Vehicle Width Drop Value Distance Between Leaf Spring Pads Wheel Steering Angle Max. Axle Weight Wheel Size Brake Type
  RDD 45-175 4.500 kg 2.400/2450 mm 114 mm N/A 51° 268 kg as bare 305 kg with susp. legs 17.5″x6″ Bolt Circle 205 mm Air Disc
  RDD 42-175 4.200 kg 2.300/2.350 mm 150 mm 1100 mm 51° 255 kg 17.5″x6″ Bolt Circle 245 mm Air Disc
RDD 45-175
Axle Load Max. 4.500 kg
Vehicle Width 2.400/2450 mm
Drop Value 114 mm
Distance Between Leaf Spring Pads N/A
Wheel Steering Angle Max. 51°
Axle Weight 268 kg as bare 305 kg with susp. legs
Wheel Size 17.5″x6″ Bolt Circle 20 5mm
Brake Type Air Disc
RDD 42-175
Axle Load Max. 4.200 kg
Vehicle Width 2.300/2.350 mm
Drop Value 150 mm
Distance Between Leaf Spring Pads 1100 mm
Wheel Steering Angle Max. 51°
Axle Weight 255 kg
Wheel Size 17.5″x6″ Bolt Circle 245 mm
Brake Type Air Disc
  • Ⅲ. IRS (Independent Rear Suspension)

IRS TJ105-225 would be a compact solution with its light system weight and some impressive features especially for electric & hybrid bus applications, developed recently and added to BRIST axles’ portfolio. Steerable rear tyres are synchronised with front steering (Active Steering) will enable bus manufacturers to offer better turning radius to the users and operators.

Independent Rear Suspensions are available as “single” or “dual” gear reduction (planetary gears at wheel hub), supplied with or w/o differential unit, upon request. Dual ratio is appropriate at airport bus applications in front for high torque requirement.

IRS TJ105-225 can also be considered as an alternative solution in place of electrified axles at rear with hydraulic or air suspension options.

Tag axle (Steered or non-steered) versions are also available.

 

Type Axle Load Max. Vehicle Width Steering Angle Wheel Travel Axle Weight Wheel Size Brake Type
  IRS TJ105-225 10.500 kg 2.300 to 2.550 mm 35° ± 90 mm 574 kg 22.5” Air Disc
IRS TJ105-225
Axle Load Max. 10.500 kg
Vehicle Width 2.300 to 2.550 mm
Steering Angle 35°
Wheel Travel ± 90 mm
Axle Weight 574 kg
Wheel Size 22.5”
Brake Type Air Disc
  • Ⅳ.A. RDA (Real Drive Axle) – Z Drive

Z Drive is a unique configuration developed for buses with the engine installed in transversal layout to shorten rear overhang. The Z Drive axle is supplied with its Angle Drive Unit at the same input flange angle (35 degree).

 

Type Axle Load Max. Wheel Travel Axle Gear Ratio Diff. Offset Tire Size Max. Suspension Type Axle Weight (w/o Oil) Wheel Size Brake Type
  RDA 65-175/A35 6.500 kg ± 85 mm 4.45:1 73 mm outboarded to RH side 245/75 R17.5″ Air/leaf spring susp. 2 bellows 412 kg as bare 17.5″x6,75″ Bolt Circle 205 mm Air Disc
  RDA 65-175/A35 6.500 kg ± 85 mm 4,45:1 192 mm outboarded to RH side 245/75 R17.5″ Air suspension 4 bellows 469 kg as bare 600 kg as fully dressed 17.5″x6,75″ Bolt Circle 205 mm Air Disc
RDA 65-175/A35
Axle Load Max. 6.500 kg
Wheel Travel ± 85 mm
Axle Gear Ratio 4.45:1
Diff. Offset 73 mm outboarded to RH side
Tire Size Max. 245/75 R17.5″
Suspension Type Air/leaf spring susp. 2 bellows
Axle Weight (w/o Oil) 412 kg as bare
Wheel Size 17.5″x6,75″ Bolt Circle 205mm
Brake Type Air Disc
RDA 65-175/A35
Axle Load Max. 6.500 kg
Wheel Travel ± 85 mm
Axle Gear Ratio 4.45:1
Diff. Offset 192 mm outboarded to RH side
Tire Size Max. 245/75 R17.5″
Suspension Type Air suspension 4 bellows
Axle Weight (w/o Oil) 469 kg as bare 600 kg as fully dressed
Wheel Size 17.5″x6,75″ Bolt Circle 205mm
Brake Type Air Disc
  • Ⅳ.B. BRA (Real Drive Axle) – Inverted Portal

Inverted Rear Portal Axle has been engineered specifically for mid-size LF buses, offers max corridor width, higher ground clearance provided with radial brakes, compact dimension in height and less system weight with 10,5t loading capacity. It is available at 75 degree input shaft angle.

 

Type Axle Load Max. Output torque Max Tilting Angle Diff. Input Angle Axle Gear Ratio Axle Weight (w/o Oil) Tire Size Max Whell Size Brake Type
  BRA104-195 DC/A75 10.400 kg 35.000 Nm 7 ° 75 ° 4,86:1 711 kg 265/70 R19.5″ twin 19.5″x7,5″ Bolt Circle 275 mm Air Disc (Radial)
BRA104-195 DC/A75
Axle Load Max. 10.400 kg
Output torque Max 35.000 Nm
Tilting Angle 7 °
Diff. Input Angle 75 °
Axle Gear Ratio 4,86:1
Axle Weight (w/o Oil) 711 kg
Tire Size Max 265/70 R19.5″ twin
Whell Size 19.5″x7,5″ Bolt Circle 275 mm
Brake Type Air Disc (Radial)
  • Ⅴ.A. E-Drive Solutions – Driven & Steered

Steered&Driven Independent Axle is available at single or dual reduction.

Type Axle Load Max. Wheel Steering Angle Max. Wheel Travel Tire Size Brake Type Axle Weight Diff. Ratio Hub Reduction Ratio
  IRS 105-225 10.500 kg 35 ° ± 90 mm 385/55 R22.5” Air Disc 574 kg 5.29:1
  IRS 105-225 HR 10.500 kg 35 ° ± 90 mm 385/55 R22.5” Air Disc 650 kg 2.08:1 or 1.50:1 4.00:1
IRS 105-225
Axle Load Max. 10.500 kg
Wheel Steering Angle Max. 35 °
Wheel Travel ± 90 mm
Tire Size 385/55 R22.5”
Brake Type Air Disc
Axle Weight 574 kg
Diff. Ratio 5.29:1
Hub Reduction Ratio
IRS 105-225 HR
Axle Load Max. 10.500 kg
Wheel Steering Angle Max. 35 °
Wheel Travel ± 90 mm
Tire Size 385/55 R22.5”
Brake Type Air Disc
Axle Weight 650 kg
Diff. Ratio 2.08:1 or 1.50:1
Hub Reduction Ratio 4.00:1
  • Ⅴ.B. E-Drive Solutions – Non-Driven & Steered

Non-Driven but Steered version fullfils the needs in multiaxle bus applications.

Type Axle Load Max. Wheel Steering Angle Max. Wheel Travel Axle Weight Tire Size Brake Type
  IFS 105-225 10.500 kg 35 ° ± 90 mm 574 kg 385/55 R22.5″ Air Disc
IRS 105-225
Axle Load Max. 10.500 kg
Wheel Steering Angle Max. 35 °
Wheel Travel ± 90 mm
Tire Size 385/55 R22.5″
Axle Weight 574 kg
Brake Type Air Disc
  • Ⅴ.C. E-Drive Solutions – Driven & Steered (Low Floor)

Hub motor” like the version is ideal for LF with E-drive pack, suspended to chassis, avoiding excessive loads on w/ends.

Type Axle Load Max. Wheel Steering Angle Max. Wheel Travel Tire Size Peak Torque (per motor) Max Power (per motor) Max. Revolution Gear Box Ratio
  IRS 105-225 LF 10.500 kg 35 ° ± 90 mm 385/55 R22.5” 300 Nm 90 kW – 75 kW cont.power 10.500 rpm 19.00:1
  IRS 105-225 HR/LF 10.500 kg 35 ° ± 90 mm 385/55 R22.5”
IRS 105-225 LF
Axle Load Max. 10.500 kg
Wheel Steering Angle Max. 35 °
Wheel Travel ± 90 mm
Tire Size 385/55 R22.5”
Peak Torque (per motor) 300 Nm
Max Power (per motor) 90 kW – 75 kW cont.power
Max. Revolution 10.500 rpm
Gear Box Ratio 19.00:1
IRS 105-225 HR/LF
Axle Load Max. 10.500 kg
Wheel Steering Angle Max. 35 °
Wheel Travel ± 90 mm
Tire Size 385/55 R22.5”
Peak Torque (per motor)
Max Power (per motor)
Max. Revolution
Gear Box Ratio
  • Ⅵ. E-Drive – Single Speed Transmission

Single Speed Transmission is available at 2 different gear ratios for electric vehicle applications.

Single Speed Transmission
Max Input Torque 340 Nm
Permissible Max Input Speed 11800 rpm
Gear Ratio 18.5:1 or 12.5:1
Continuous Power 75 kW
Maximum Power 125 kW
Continuous Torque 150 Nm
Maximum Torque 250 Nm to 340 Nm
Maximum Speed 11400 rpm
Input Shaft External Spline (direct mounted e-motor) ANSI B92.1 21Zx25.4/50,8×45
Output Hub Spline (to half shafts) ANSI B92.1 21Zx24/48×37.5
Central Bevel Gear Axle Diff. 50:50 (not locakable)
Centering and Sealing of Half Shafts Integrated 2.7 liter (oil type Shell S6 GXME 75W80
Oil Capatir 45 kg (w/o oil)
Single Speed Transmission
Max Input Torque 340 Nm
Permissible Max Input Speed 11800 rpm
Gear Ratio 18.5:1 or 12.5:1
Continuous Power 75 kW
Maximum Power 125 kW
Continuous Torque 150 Nm
Maximum Torque 250 Nm to 340 Nm
Maximum Speed 11400 rpm
Input Shaft External Spline (direct mounted e-motor) ANSI B92.1 21Zx25.4/50,8×45
Output Hub Spline (to half shafts) ANSI B92.1 21Zx24/48×37.5
Central Bevel Gear Axle Diff. 50:50 (not locakable)
Centering and Sealing of Half Shafts Integrated 2.7 liter (oil type Shell S6 GXME 75W80
Oil Capatir 45 kg (w/o oil)