We are constantly optimizing the production process of Hydraulic Cylinder Assy, Hydraulic Cylinder, Split Master Link Bolts products to further reduce production costs and improve production efficiency. We should integrate our own advantages in production capacity, technology, capital and mode, base ourselves on China and lay out the whole world. We focus on creating value for users, not chasing short-term profits and superficial prosperity, but with equal and friendly communication. Our products are exported to many countries and regions and have established good cooperative relations with well-known manufacturers at home and abroad. The company adheres to the "supply better products for customers" as the center.

Product Description

Bulldozer Lower Track Roller is composition of two pieces of forged semi-roller. It is the main part of undercarriage parts. And it support the whole weight of the machinery and pass the weight to the ground and constraint the position of the track. Besides, it can can prevent the crawler from causing lateral relative movement to it. It should be noted that Bulldozer Lower Track Roller often works in mud, water, ash and sand, and withstands strong impacts, and the rim is easy to wear.

Production Features

The rollers will meet great impact when the machinery running on rugged ground, making track rollers often be used overload and in bad working environment, often in dust or even soak in the mud and water. So track rollers request a good hardness, wear resistance and good sealing effect. The quality and service life of the products of roller are guaranteed by the hardened face with depth of roller body. Our materials and welding effect are well guaranteed.

The dimensional accuracy of Bulldozer Lower Track Roller is guaranteed by processing of NC LATHES and PROGRAM CONTROLLED MACHINES. In the process of assembly of roller, the expected and reliable sealing and lubricating rotation of roller are guaranteed by Testing of Air Pressure Tightness and Load-bearing Rotation.

The Machining Process Of Our Track Roller: Forging — Rough Turning — Heat Treatment — Welding — Finish Turning — Assembly — Spraying Paint

Heat Treatment Technical Data

• Surface quenching HRC49-56

• Track face hardening depth 5mm-8mm

• Corner hardening depth more than 2mm

Application

The track roller fit with below bulldozer models:

KOMATSU	CATERPILLAR	CATERPILLAR	DRESSER
D20	D3C	D6N	TD15M
D30	D3K	D6H	TD20G
D50	D4D	D7G	TD25
D60	D4H	D7H	JOHN DEERE
D85ESS-2	D5C	D8N/R	JD450G
D80/85	D5M	D8K	JD450J
D155	D5N	D9N	JD650J
D275	D5B	D10N	JD750J
D355	D5H	D11	JD850J
D375	D6D
D475	D6M

Application	Usco Part No	Pos	Alternative Nos.	Berco Ref	ITM Ref	Notes
Caterpillar Bulldozers
D3, D3B, 931	6S3607	SF	3T4352	CR3000	A01030A0M00
	6S3608	DF	3T4353	CR3001	B01030A0M00
	6S3609	CR		CR3002	C0103100N00
D4D, D4E, 933	9P7783	SF	1181608, 7K8095, 6T9887	CR1328	A0104000M00
	9P7787	DF	1181609, 7K8096, 6T9883	CR1329	B0104000M00
	6K9879	CR	6K9880	CR2880	C0104100M00
D5M, D4H, 943	1248237	SF	7G4836	CR6150	A01040L0M00	With Collars
	1248240	DF	7G4837	CR6151	B01040L0M00	With Collars
	6K9879	CR	6K9880	CR2880	C0104100M00
D6M, D5B,D5H, 955H/K & 953	1210824	SF	9P1368, 6T9879, 9S9539	CR6152	A01050L1M00	With Collars
	1210827	DF	9P1363, 6T9875, 9S9538	CR6153	B01050L1M00	With Collars
	9S3570	CR	5A8374	CR2881	C0105100M00	For D5B, 953
	6Y3908	CR		CR4799	C01051H0M00	For 5H, D6M
D6H, D6R, 963	1205746	SF	7T4102, 1254175	CR6088	A01060L0M00	With Collars
	1205766	DF	7T4107, 1254176	CR6089	B01060L0M00	With Collars
	6Y1781	CR		CR4800	C01061H0M00
D6D	7G0421	SF	1181617, 9G8029	CR3634	A01060D0M00	¾" Coll Bolts
	7G0423	DF	1181618, 9G8034	CR3635	B01060D0M00	¾" Coll Bolts
	9S2730	CR	3T3206	CR2650	C0106100M00
D6C, 955K/L	9S9403	DF	1181614, 6Y2901, 9G8099	CR1793	A0106000M00	5/8" Coll Bolts
	9S9404	DF	1181615, 6Y2903, 9G8098	CR1792	B0106000M00	5/8" Coll Bolts
	9S2730	CR	3T3206	CR2650	C0106100M00
D7H, D7R	1248250	SF	9W5586, 6T9871	-	-	With Collars
	1248253	DF	9W5585, 6T9867	-	-	With Collars
	9M0638	CR	1P8717	CR2876	C0107100M00
D7F,D7G,977L	9S0316	SF	1181623, 4S9051	CR2617	A01070A0M00	7/8" Coll. Bolts
	9S0317	DF	1181625, 8S2933	CR2615	B01070A0M00	7/8" Coll. Bolts
	9M0638	CR	1P8717	CR2876	C0107100M00
D7E	9S7284	SF	1P9100, 9S7388	CR1652/1	A107001M00	¾" Bolts
	9S7286	DF	1P9102, 9S7387	CR1652/2	B107001M00	¾" Bolts
	9M0638	CR	1P8717	CR2876	C0107100M00
D8N	1969947	SF	9W8705, 1327928, 7T9188	CR4528	A01089L1M00
D8N	1969946	DF	9W8706, 1327929, 7T9193	CR4529	B01089L1M00
D8L	9W7826	SF	7G7594	CR4504	A01089L1M00
D8L	9W7827	DF	7G7559	CR4056	B01089L1M00
D8K	7S9041	SF	6P4897	CR2798	A0108000M00	1" Coll. Bolts
	7S9042	DF	6P4898	CR2782	B0108000M00	1" Coll. Bolts
	9P2663	CR	8M0380, 7M5202, 8P6256	CR3512	C0108100M00
D9N	7T1258	SF	1043495, 1969955	CR4672	A01099N1M00
D9N	7T1253	DF	1043496, 1969954	CR4673	B01099N1M00
D9L	6Y2950	SF	7T1831, 9G8641	CR4234	A01099LAM00
D9L	6Y2951	DF	9G8642	CR3756	B01099LAM00
D9H	8P5605	SF	7S7672	CR4291	A01090C0M00
	8P5604	DF	7S7673	CR4292	B01090C0M00
	7M5288	CR	3P3403	CR3518	C01091E0M00
D10N	7T0682	SF	6Y0889, 1253268	CR5041	A01109NCM00
D10N	7T0687	DF	6Y0890, 1253270	CR5043	B01109NCM00

Komatsu Bulldozers
Application	Usco Part No	Pos	Alternative Nos.	Berco Ref	ITM Ref	Notes
D40, D50	140-30-00053	SF	131-30-000343	KM859	A4060000M00
	140-30-00063	DF	131-30-000353	KM860	B4060000M00
	141-30-00073	CR		KM103	C4060100M00
D65	141-30-00575	SF	141-30-00576,-00578	KM868	A4065000M00
	141-30-00585	DF	141-30-00586,-00588	KM869	B4065000M00
	141-30-00563	CR	141-30-00565,-00568	KM118	C40651A0M00
D65E-12 D65EX-12	14X-30-00081	SF	14X-30-00082,-14100	KM2101	A40650E0M00
	14X-30-00091	DF	14X-30-00092,-14200	KM2102	B40650E0M00
	14X-30-00142	CR	14X-30-00140,-00141	KM2105	C40651E0M00
D85	155-30-00126	SF	155-30-00250, -00127	KM351	A40850A0M00
	155-30-00116	DF	155-30-00240,-00117	KM353	B40850A0M00
	155-30-00233	CR	155-30-00232,-00234	KM120	C40851A0M00
D155-1 D155-2	175-30-00760	SF	175-30-00484,-00489	KM122	A4015000M00
	175-30-00770	DF	175-30-00494,-00499	KM123	B4015000M00
	175-30-00515	CR	175-30-00517,-00471	KM124	C40151G0M00	D155AX-3
D155-3 D155AX-3	17A-30-00070	SF		KM2265	A40159D0M00
D155-3 D155AX-3	17A-30-00080	DF		KM2266	B40159D0M00
D355	195-30-00335	SF	195-30-00336	KM926	A4035000M00
	195-30-00345	DF	195-30-00346	KM927	B4035000M00
	195-30-00105	CR	195-30-00106	KM578	C4035100M00
D275	17M-30-00220	SF
	17M-30-00230	DF
	195-30-00580	CR		KM2160		Also PC650-5
D375A-1	195-30-00562	SF	195-30-00561	KM1039
	195-30-00572	DF	195-30-00571	KM1040
	195-30-00580	CR
D375A-2/3	195-30-01051	SF	195-30-01011,-01010	KM1272	A4037000M00
	195-30-01061	DF	195-30-01021,-01020	KM1279	B4037000M00
	195-30-01041	CR	195-30-01040	KM1281	C4037100M00

One of the reasons we produce high-quality Daqin Vinyl Phone Cover Making Machine for Any Model is our quality inspection system, which is the best of its kind. Our company makes every effort to promote the construction of technology led innovation system and firmly establish the technology leading strategy. We will provide our customers with high performance ratio products and excellent service, as well as rich experience in dealing with problems.

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