Shantui SD22 Bulldozer Undercarriage Spare Parts Track Bottom Roller

Our Track Link R330LC-9S, Bulldozer Track Roller Group, Carrier Roller PC200-7 PC220-7 integrates excellent corporate culture and technical advantages, with mature and reliable performance. With innovative thinking and brand-new development model, we advocate honest cooperation, welcome new and old customers to inquire! Dependable good quality and very good credit score standing are our principles, which will help us at a top-ranking position. We have a highly efficient team to deal with inquiries from customers.

Track roller for caterpillar excavators:

Track roller is one of the four wheels of excavator and bulldozer undercarriage. Its main function is to support the weight of excavator and bulldozer and let the track move along the rollers.

支重轮的主要结构：轮体、支重轮轴、轴套、密封圈、端盖等相关部件构成。支重轮可分为单边支重轮与双边支重轮；

The main structure of the bottom roller is composed of wheel body, supporting wheel axle, sleeve, sealing ring, end cover and other related components. The track rollers can be divided into single flange type and double flange type.

挖掘机用支重轮与推土机用支重轮，挖掘机用支重轮一般是黑色油漆，推土机支重轮一般是黄色油漆。

Lower rollers for excavators and bulldozers are usually painted in black, and track rollers for bulldozers are painted in yellow.

支重轮

down roller

Wheel materials are generally 50MN steel, 40Mn2, etc. Major process techinics:造或锻造，机械加工，然后进行热处理，轮子表面中频热处理后

Forging or forging, mechanical processing, and then heat treatment, wheel surface after intermediate frequency heat treatment

The hardness should reach HRC52-HRC58 to increase the wear resistance of wheel surface.The processing accuracy of the supporting wheel axle is required to be high. Generally, NC machine tools are needed to process the axle to meet the requirements. The material is more than 40CR, quenching and heat treatment are also needed after processing, and the hardness reaches HRC42 or so.

支重轮容易出现在问题是：

Load wheels are easy to appear in the problem:

A

轮体磨损。出现这种情况

Wheel wear. This is the case.

的原因是采用的钢材不合格或者说材料热处理时的硬度较

The reason is that the steel used is not qualified or that the hardness of the material is higher during heat treatment.

低，耐磨性不足；

Low wear resistance;

B

漏油。支重轮轴通过轴套一直在旋转，

Oil spill.The axle of the supporting wheel rotates continuously through the sleeve.

轮体内要加油来润滑，但如果说密封圈不好的话，很容易

Oiling is needed to lubricate the wheel body, but if the sealing ring is not good, it is easy.

产生漏油的现象，这样轴与轴套在无润滑的情况下，很容

Oil leakage occurs, so that the shaft and bush are compatible without lubrication.

易磨损，造成产品无法进行使用。因此，

Easy to wear and tear, resulting in the product can not be used.Therefore,

支重轮

Supporting wheel

密封的好

Well sealed

坏是作为衡量生产公司产品质量的一个很重要的标准。

Bad is a very important criterion to measure the quality of products in a production company. 

MAIN PARAMETERS OF TRACK ROLLER
ITEM	MODEL	A	B	C	D	E	F	G	H	I	L	M	N	O。	P
1	PC60-5	158	130	110	140	205	240	150	50	95	17.5	92	45	12
2	PC100-5	164	135	118	160	240	276	190	50	120.5	18	102	50	12
3	PC200-3	185	150	178	226	310	356	244	60	112	17	110	55	12
4	PC200-5	195	160	173	237	310	356	244	60	117	19	110	55	12
5	PC300-5	212	178	198	242	320	390	256	75	133	21.5	114	70	15
6	EX60-2	145	120	124	152	216	248	181	38	83	15	82	37	12
7	EX100-1	170	140	145	184	250	285	206	50	100	17.5	89	50	12
8	EX200-1	185	150	176	220	318	356	240	60	113	18	101.6	56	12
9	EX200-2	185	150	169	218	290	218	242	65	113.5	19	101.6	63	12
10	EX300-1	215	180	201	257	370	409	285	75	132	22	114	72	15
11	EX400-1	240	200	214	284	400	447	293	85	152	23.5	125	78	15
12	E120B	170	140	161	194	265.5	301	218	50	99	17.5	80	52	12
13	E200B	185	150	176	220	296	335	244	60	113	21.5	98	68	12
14	E240	192	160	178	228	330	372	244	60	98	19.5	110	42	12
15	E325	195	160	196	240	339	385	267	65	120	22	106	65	15
16	E300B	215	180	204	250	350	398	276	70	115.5	20	120	53	15
17	SK60	145	120	108	140	200	236	160	40	75	15	70	36	12
18	SK100	170	140	134	174	262	311	203	50	92.5	17.5	100	38	15
19	SK200-3	185	150	173	220	310	353	230	60	101	19.5	110	45	12
20	SK300	212	180	206	244	357.5	396	278	70	120.5	23.5	125	55	15
21	SH120	170	140	151	190	298	333	215	50	90	17.5	89	36	12
22	SH200	185	150	178	226	320	366	242	60	101	19.5	110	45	12
23	SH340	192	160	178	228	370	411	248	60	106	19.5	130	45	12
24	MS180-3	195	160	173	218	330	356	244	65	100.5	17.5	140	44	15
25	DH220	185	150	176	220	320	356	240	60	115	18	102	58	12

With the continuous changes in market demand, our products are constantly updated and developed, so that the performance of Shantui SD22 Bulldozer Undercarriage Spare Parts Track Bottom Roller is always at the forefront of the industry. Our company actively advocates and strives to practice the modern enterprise management concept. We are people-oriented and strive to build a modern enterprise with advanced technology, scientific management, prosperous career and first-class talents. We work with our friends with first-class products and sincere services to advance to the depth and breadth of the international market. Our company pays attention to customer service, creates a set of fast and perfect customer service process and system and perfect after-sales system to provide customers with thoughtful and timely service.

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