NEW TRACK ROLLERS FOR D7 FAMILY MACHINES Caterpillar

NEW TRACK ROLLERS FOR D7 FAMILY MACHINES

Usage:

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Information Release Memo

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CAT?

Undercarriage

September 2010

NEW TRACK ROLLERS FOR D7 FAMILY MACHINES

New track rollers are available for the following specific machine models:

Elevated Sprocket Tractors                      D7R/H
Track Type Loaders                                     973, 977
Conventional Tractors/Pipelayers         D7, 571, 572
Hydraulic Excavator                                  235

The new track roller is a standardization of ?D7 sized? rollers and may be used with 8.50? pitch (203.2) sealed and lubricated, hybrid, heavy duty, rotating bushing, and sealed track. The new design separates the mounting caps from the seal collar to eliminate flexing in the collars and avoid oil loss. Similar to the SystemOne rollers, these rollers are maintenance free and serviced as a group only.

The end caps only need to be purchased one time; and can be re-used on future roller group replacements. It is recommended that new hardware be used each time.

Part Number Information

The table list below includes the part number information that should be used to select the correct replacement parts for D7R/H, D7, 973, 977, 235, 571, and 572 track roller groups, rim assemblies (shells), and shafts. Replacement of track roller groups, rim assemblies (shells) or shafts will be service replaced by an entire track roller group, caps, and hardware.

Table I: Caps and Hardware

*Quantities above are for one roller Group.

Custom Track Service (CTS)

Reference the attached wear charts for Custom Track Service

Table II: Wear Chart Data

Standardized Single and Double Flange Rollers

323-5925 and 323-5928

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Caliper		%Worn	Depth Gauge		Ultrasonic
In	mm		In	mm	In	mm
8.76	222.5	0	0.63	16.0	2.06	52.3
8.72	221.5	3	0.65	16.5	2.04	51.8
8.68	220.5	6	0.67	17.0	2.02	51.3
8.64	219.5	9	0.69	17.5	2.00	50.8
8.60	218.5	12	0.71	18.0	1.98	50.3
8.56	217.5	15	0.73	18.5	1.96	49.8
8.52	216.5	18	0.75	19.0	1.94	49.3
8.48	215.5	21	0.77	19.5	1.92	48.8
8.44	214.5	24	0.79	20.0	1.90	48.3
8.40	213.5	27	0.81	20.5	1.88	47.8
8.36	212.5	30	0.83	21.0	1.86	47.2
8.32	211.5	33	0.85	21.5	1.84	46.7
8.28	210.5	36	0.87	22.0	1.82	46.2
8.24	209.5	39	0.89	22.5	1.80	45.7
8.20	208.5	42	0.91	23.0	1.78	45.2
8.16	207.5	45	0.93	23.5	1.76	44.7
8.12	206.0	48	0.95	24.0	1.74	44.2
8.08	205.0	51	0.97	24.5	1.72	43.7
8.04	204.0	54	0.99	25.0	1.70	43.2
8.00	203.0	57	1.01	25.5	1.68	42.7
7.96	202.0	60	1.03	26.0	1.66	42.2
7.92	201.0	63	1.05	26.5	1.64	41.7
7.88	200.0	66	1.07	27.0	1.62	41.1
7.84	199.0	69	1.09	27.5	1.60	40.6
7.80	198.0	72	1.11	28.0	1.58	40.1
7.76	197.0	75	1.13	28.5	1.56	39.6
7.72	196.0	78	1.15	29.0	1.54	39.1
7.68	195.0	81	1.17	29.5	1.52	38.6
7.64	194.0	84	1.19	30.0	1.50	38.1
7.60	193.0	87	1.21	30.5	1.48	37.6
7.56	192.0	90	1.23	31.0	1.46	37.1
7.52	191.0	93	1.25	32.0	1.44	36.6
7.48	190.0	96	1.27	32.5	1.42	36.1
7.44	189.0	98	1.29	33.0	1.40	35.6
7.40	188.0	100	1.31	33.5	1.38	35.1
7.36	187.0	102	1.33	34.0	1.36	34.5
7.32	186.0	104	1.35	34.5	1.34	34.0
7.28	185.0	106	1.37	35.0	1.32	33.5
7.24	184.0	108	1.39	35.5	1.30	33.0
7.20	183.0	110	1.41	36.0	1.28	32.5
7.16	182.0	112	1.43	36.5	1.26	32.0
7.12	181.0	114	1.45	37.0	1.24	31.5
7.08	180.0	116	1.47	37.5	1.22	31.0
7.04	179.0	118	1.49	38.0	1.20	30.5
7.00	178.0	120	1.51	38.5	1.18	30.0

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Double Flange Rollers (Tall Flange)

323-5931

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Caliper		%Worn	Depth Gauge		Ultrasonic
In	mm		In	mm	In	mm
8.76	222.5	0	0.82	21.0	2.06	52.3
8.72	221.5	4	0.84	21.5	2.04	51.8
8.68	220.5	8	0.86	22.0	2.02	51.3
8.64	219.5	12	0.88	22.5	2.00	50.8
8.60	218.5	16	0.90	23.0	1.98	50.3
8.56	217.5	20	0.92	23.5	1.96	49.8
8.52	216.5	24	0.94	24.0	1.94	49.3
8.48	215.5	28	0.96	24.5	1.92	48.8
8.44	214.5	32	0.98	25.0	1.90	48.3
8.40	213.5	36	1.00	25.5	1.88	47.8
8.36	212.5	40	1.02	26.0	1.86	47.2
8.32	211.5	43	1.04	26.5	1.84	46.7
8.28	210.5	46	1.06	27.0	1.82	46.2
8.24	209.5	49	1.08	27.5	1.80	45.7
8.20	208.5	52	1.10	28.0	1.78	45.2
8.16	207.5	55	1.12	28.5	1.76	44.7
8.12	206.0	58	1.14	29.0	1.74	44.2
8.08	205.0	61	1.16	29.5	1.72	43.7
8.04	204.0	64	1.18	30.0	1.70	43.2
8.00	203.0	67	1.20	30.5	1.68	42.7
7.96	202.0	70	1.22	31.0	1.66	42.2
7.92	201.0	73	1.24	31.5	1.64	41.7
7.88	200.0	76	1.26	32.0	1.62	41.1
7.84	199.0	79	1.28	32.5	1.60	40.6
7.80	198.0	82	1.30	33.0	1.58	40.1
7.76	197.0	85	1.32	33.5	1.56	39.6
7.72	196.0	88	1.34	34.0	1.54	39.1
7.68	195.0	91	1.36	34.5	1.52	38.6
7.64	194.0	94	1.38	35.0	1.50	38.1
7.60	193.0	97	1.40	35.5	1.48	37.6
7.56	192.0	100	1.42	36.0	1.46	37.1
7.52	191.0	103	1.44	36.5	1.44	36.6
7.48	190.0	106	1.46	37.0	1.42	36.1
7.44	189.0	109	1.48	37.5	1.40	35.6
7.40	188.0	112	1.50	38.0	1.38	35.1
7.36	187.0	115	1.52	38.5	1.36	34.5
7.32	186.0	118	1.54	39.0	1.34	34.0
7.28	185.0	121	1.56	39.5	1.32	33.5

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Contact Information

Global Dealer Solutions Network - Parts Technical Support Team
Toll Free - North America: 1-877-228-2420
International: (309) 266-4421
Email: Tech_Support@Cat.com

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