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Wheeled Undercarriage

Assembly

Road-mobile chassis: axles, tires, travel drive, brakes, steering, and stabilizers. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Wheeled Undercarriage parts and their functions

12 top-level parts · 139 parts in total · full bill of materials below
Wheeled Undercarriage parts diagram: 1 carrier frame, 2 front axle (Steer/Oscillating), 3 rear axle (rigid drive), 4 wheel assembly, 5 travel motor, 6 travel gearbox, 7 drive shaft, 8 service brake, 9 parking brake, 10 steering system, 11 stabilizer outrigger, 12 stabilizer dozer blade. 139 parts in 12 top-level items.
Wheeled Undercarriage parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Carrier Frame 1× Welded carrier frame
2 Front Axle (Steer/Oscillating) 6 parts 1× Steered, oscillating front axle
3 Rear Axle (Rigid Drive) 3 parts 1× Rigid driven rear axle
4 Wheel Assembly 3 parts 4× Rims and tires
5 Travel Motor 1× Hydraulic travel motor
6 Travel Gearbox 5 parts 1× Two-speed travel transmission
7 Drive Shaft 2× Propeller shafts to the axles
8 Service Brake 3 parts 4× Wet multi-disc service brakes
9 Parking Brake 1× Driveline parking brake
10 Steering System 4 parts 1× Hydrostatic steering
11 Stabilizer Outrigger 4 parts 2× Front stabilizer outriggers
12 Stabilizer Dozer Blade 3 parts 1× Rear stabilizer blade

3D model

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Build & assembly graph

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Bill of materials for Wheeled Undercarriage

12 top-level lines · 78 rows shown · 139 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Carrier Frame wheeled-excavator-chassis-frame 1× 1 · part
2 Front Axle (Steer/Oscillating) 6 parts wheeled-excavator-front-axle 1× 1 30 assembly
2.1 Axle Housing wheeled-excavator-axle-housing 1× 1 · part
2.2 Axle Differential 5 parts wheeled-excavator-differential 1× 1 9 assembly
2.2.1 Crown Wheel and Pinion wheeled-excavator-crown-pinion 1× 1 · part
2.2.2 Differential Case wheeled-excavator-diff-case 1× 1 · part
2.2.3 Helical Gear Pair gear-pair 1× 1 · part
2.2.4 Ball Bearing ball-bearing 4× 4 · part
2.2.5 Oil Seal oil-seal 2× 2 · part
2.3 Planetary Wheel Hub 5 parts wheeled-excavator-planetary-hub 2× 2 8 assembly
2.3.1 Sun Gear wheeled-excavator-sun-gear 1× 2 · part
2.3.2 Planet Gear wheeled-excavator-planet-gear 3× 6 · part
2.3.3 Ring Gear wheeled-excavator-ring-gear 1× 2 · part
2.3.4 Ball Bearing ball-bearing 2× 4 · part
2.3.5 Oil Seal oil-seal 1× 2 · part
2.4 Steering Knuckle wheeled-excavator-steering-knuckle 2× 2 · part
2.5 Axle Oscillation Bearing wheeled-excavator-oscillation-bearing 1× 1 · part
2.6 Steering Tie Rod wheeled-excavator-tie-rod 1× 1 · part
3 Rear Axle (Rigid Drive) 3 parts wheeled-excavator-rear-axle 1× 1 26 assembly
3.1 Axle Housing wheeled-excavator-axle-housing 1× 1 · part
3.2 Axle Differential 5 parts wheeled-excavator-differential 1× 1 9 assembly
3.2.1 Crown Wheel and Pinion wheeled-excavator-crown-pinion 1× 1 · part
3.2.2 Differential Case wheeled-excavator-diff-case 1× 1 · part
3.2.3 Helical Gear Pair gear-pair 1× 1 · part
3.2.4 Ball Bearing ball-bearing 4× 4 · part
3.2.5 Oil Seal oil-seal 2× 2 · part
3.3 Planetary Wheel Hub 5 parts wheeled-excavator-planetary-hub 2× 2 8 assembly
3.3.1 Sun Gear wheeled-excavator-sun-gear 1× 2 · part
3.3.2 Planet Gear wheeled-excavator-planet-gear 3× 6 · part
3.3.3 Ring Gear wheeled-excavator-ring-gear 1× 2 · part
3.3.4 Ball Bearing ball-bearing 2× 4 · part
3.3.5 Oil Seal oil-seal 1× 2 · part
4 Wheel Assembly 3 parts wheeled-excavator-wheel-assembly 4× 4 3 assembly
4.1 Wheel Rim wheeled-excavator-rim 1× 4 · part
4.2 Pneumatic Tire wheeled-excavator-tire 1× 4 · part
4.3 Fastener Set fastener-set 1× 4 · part
5 Travel Motor wheeled-excavator-travel-motor 1× 1 · part
6 Travel Gearbox 5 parts wheeled-excavator-travel-gearbox 1× 1 13 assembly
6.1 Helical Gear Pair gear-pair 2× 2 · part
6.2 Gearbox Housing gearbox-housing 1× 1 · part
6.3 Range Shift Mechanism wheeled-excavator-range-shift 1× 1 · part
6.4 Ball Bearing ball-bearing 6× 6 · part
6.5 Oil Seal oil-seal 3× 3 · part
7 Drive Shaft wheeled-excavator-drive-shaft 2× 2 · part
8 Service Brake 3 parts wheeled-excavator-service-brake 4× 4 3 assembly
8.1 Brake Disc Pack wheeled-excavator-brake-disc-pack 1× 4 · part
8.2 Brake Apply Piston wheeled-excavator-brake-piston 1× 4 · part
8.3 O-Ring Set oring-set 1× 4 · part
9 Parking Brake wheeled-excavator-park-brake 1× 1 · part
10 Steering System 4 parts wheeled-excavator-steering-system 1× 1 12 assembly
10.1 Steering Control Unit (Orbitrol) wheeled-excavator-steering-unit 1× 1 · part
10.2 Steering Cylinder 5 parts wheeled-excavator-steer-cylinder 1× 1 6 assembly
10.2.1 Cylinder Barrel wheeled-excavator-cyl-barrel 1× 1 · part
10.2.2 Cylinder Rod wheeled-excavator-cyl-rod 1× 1 · part
10.2.3 Cylinder Piston wheeled-excavator-cyl-piston 1× 1 · part
10.2.4 O-Ring Set oring-set 1× 1 · part
10.2.5 Oil Seal oil-seal 2× 2 · part
10.3 Steering Priority Valve wheeled-excavator-priority-valve 1× 1 · part
10.4 Hydraulic Hose wheeled-excavator-hydraulic-hose 4× 4 · part
11 Stabilizer Outrigger 4 parts wheeled-excavator-outrigger 2× 2 10 assembly
11.1 Outrigger Leg wheeled-excavator-outrigger-leg 1× 2 · part
11.2 Outrigger Pad wheeled-excavator-outrigger-pad 1× 2 · part
11.3 Outrigger Cylinder 5 parts wheeled-excavator-outrigger-cylinder 1× 2 6 assembly
11.3.1 Cylinder Barrel wheeled-excavator-cyl-barrel 1× 2 · part
11.3.2 Cylinder Rod wheeled-excavator-cyl-rod 1× 2 · part
11.3.3 Cylinder Piston wheeled-excavator-cyl-piston 1× 2 · part
11.3.4 O-Ring Set oring-set 1× 2 · part
11.3.5 Oil Seal oil-seal 2× 4 · part
11.4 Pivot Pin wheeled-excavator-pivot-pin 2× 4 · part
12 Stabilizer Dozer Blade 3 parts wheeled-excavator-dozer-blade 1× 1 9 assembly
12.1 Blade Body wheeled-excavator-blade-body 1× 1 · part
12.2 Blade Lift Cylinder 5 parts wheeled-excavator-blade-cylinder 1× 1 6 assembly
12.2.1 Cylinder Barrel wheeled-excavator-cyl-barrel 1× 1 · part
12.2.2 Cylinder Rod wheeled-excavator-cyl-rod 1× 1 · part
12.2.3 Cylinder Piston wheeled-excavator-cyl-piston 1× 1 · part
12.2.4 O-Ring Set oring-set 1× 1 · part
12.2.5 Oil Seal oil-seal 2× 2 · part
12.3 Pivot Pin wheeled-excavator-pivot-pin 2× 2 · part

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Where the wheeled undercarriage is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Wheeled Excavator

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $10–$400. How estimates work
VendorHQSpecialtyMOQLead time
🇮🇳MRF
mrftyres.com ↗ 		Chennai, IN Tyres 500 pcs 4–8 wks
🇮🇳Apollo Tyres
apollotyres.com ↗ 		Gurugram, IN Tyres 500 pcs 4–8 wks
🇨🇳Linglong Tire
linglong.cn ↗ 		Zhaoyuan, CN Tyres 500 pcs 4–8 wks
🇮🇳CEAT
ceat.com ↗ 		Mumbai, IN Tyres 500 pcs 4–8 wks
🇨🇳Sailun
sailungroup.com ↗ 		Qingdao, CN Tyres 500 pcs 4–8 wks