> Products > Top Roller > Carrier Roller > Carrier Roller

Carrier Roller

Fujian Sheng'an Machinery Development Co., Ltd., founded in 1985 and located in Quanzhou,Fujian, the starting point of the Maritime Silk Road, is a professional comprehensive enterprise integrating casting, forging, processing and assembly. It has been successively rated as a star enterprise and a major foreign exchange earner, and has obtained ISO9001 and ISO14001 international certifications. The main products we produce include: front idler, sprocket, segment, track roller, carrier roller, track link, bucket, swamp track shoe and other engineering machinery components for various models of excavators and bulldozers.Our company will strive for excellence, continuously improve the quality control system, improve the level of after-sales service, strive for progress, and work together with you to create brilliance.

Send Inquiry

Product Description

The carrier roller is one of the four wheels in the chassis of tracked construction machinery, mainly composed of roller shell, shaft,oil seal, bushing bronze, collar, O-ring.

The materials for the carrier roller shell are generally 40Mn2 or50Mn. The main process is forging, mechanical processing, and then heat treatment. The hardness of the wheel surface after quenching should reach HRC52-58 to increase the wear resistance of the wheel surface. The material of the carrier roller shaft is mostly 45# round steel, and the machining accuracy requirements are relatively high. Generally, CNC machine tools are required to process it to meet the requirements. After processing, quenching treatment is also required, and the hardness reaches around HRC52-56.

The carrier roller is located above the X frame to maintain the linear motion of the track. If the carrier roller is damaged, it will cause the track not maintain a straight line.
The function of the carrier roller is to support the track, prevent excessive sagging of the track, and provide a certain degree of tension on the track to reduce the vibration phenomenon of the track during movement. Simultaneously guide the direction of movement of the upper track and prevent the track from sliding sideways.

Product Parameter (Specification)

The carrier roller are strictly produced in accordance with production requirements. The material selection and assembly of the carrier roller comply with the drawings, and every parameter and indicator of the product is rigorously measured and tested.
The following is the product specification table for the carrier roller:

Product name	Carrier roller
Roller shell material	50Mn/40Mn2
Color	Black or yellow
Surface of hardness	HRC52-58
Shaft material	45#/40Cr
Warranty period	One year
Case depth	5-10mm
Delivery period	30day/45-60day（negotiable）
Using time	1000hour

Product features: Stable structure,shaft and bushing bronze is standard thickness and length. The copper layer is not easily peeled off after rolling, reaching over 3.5mm. Using high-quality bimetallic bushing bronze. Reliable sealing, wear-resistant roller shell, and low rolling resistance.
Roller shell: forging, rough turning, drilling oil holes, heat treatment, precision machining,, drilling collar installation holes, protective welding, and warehousing;

Shaft: cutting, rough turning, drilling oil holes, heat treatment, precision grinding, and warehousing;Assembly process: cleaning and polishing, assembly, pressure testing, refueling, painting, packaging and warehousing.

Each process undergoes strict inspection, with independent processing workshops and precision instruments, including specialized magnetic particle inspection machines to ensure that there are no cracks in the roller shell and the overall quality of the carrier roller.

Part number

The carrier rollers are divided into different specifications and sizes, and are used in different models of tracked construction machinery chassis.

CATALOGUE
PC20	PC30	PC40	PC55	PC60-1	PC60-5	PC60-6
PC71	PC100-5	PC120-5	PC200-5	PC220	PC300-5	PC400-5
DH50	DH55	DH80	DH130	DH220	DH250	DH258
DH300	DH500	DX30	DX35	DX55-9	DX60	DX80
E305-5	E305	E307	E35B	E45	E50B	E70B
E300	E110	E120B	E135	E140	E311	E312
EX30	EX50	EX55	EX60	EX60-2	EX70	EX70DF
EX100	EX120	EX100M	EX150	EX200-1	EX200-2	EX200-5/6
HD140	HD250	HD400-1	HD420-2	HD450	HD550	HD700
HD820	HD1250-5/7	HD2045	HD820	HD1250-5/7	ZN75	ZN160
R35	R50	R55	R60-5	R60-7	R80-7	R130
R210	R220-9	R260	R290	R305	R320	R335
SK04	SK042	SK045	SK30	SK35	SK35SR	SK40
SK50	SK55	SK60	SK60-5	SK100	SK120	SK140
EC55	EC210	EC290	EC360	PH7035	PH7045	DRISOR
YC85	SH60	SH120	SH200	ZBC60	NF130	BF200
SW50	SW70	R914	KX50	JD350	JD450	83765
D20	D30	D50	D65	D65EX-12	D85	D155
D355	D51EX	D61EX	D155	CX55	CX75	JS14
D3C	D4D	D5	D6D	D7G	D10N	D11N
洋马35	洋马55	洋马75	U15	U35	U60	U15
KX91-3	VIO17	HCR1500	TMX20	GM80	厦工806	191936
Z001S004	DH508	DSR200	SC650	U30-2	HDQ306	HQ307