M2CT3278 T2ar3278 Tandem Thrust Bearings for Extruder Gearboxes

• Customization: Available
• Rolling Body: Roller Bearings
• The Number of Rows: Multi-column
• Model NO.: M2CT3278
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Thrust Bearing
• Separated: Separated
• Od: 32mm
• ID: 78mm
• H: 57.5mm
• Weight: 2.54kg
• Transport Package: Single Box
• Specification: M2CT3278
• Trademark: MONTON
• Origin: Luoyang
• HS Code: 84825000
• Production Capacity: 10000PCS/Month
• Package Size: 9.00cm * 9.00cm * 8.00cm
• Package Gross Weight: 3.800kg

Product Description

Name	Multi-Stage Cylindrical Roller Thrust Bearings
Seires	Multi-Stage Series
Brand	MONTON
New Model	M2CT3278
Old Model	T2AR3278
d	32mm
D	78mm
B	57.5mm
Ring Material	Gcr15/ Carbon Steel
Cage Material	Brass cage/Nylon Cage
dyc_Cr	161KN
stc_Cor	641KN
Weight	2.54KG
Bearing Arrangement	Multi-Row
Design Structure	Cylindrical roller
Quality standard	ISO9001: 2000/SGS
Package	single box
Original	Luoyang
Service	OEM
Delivery date	7-35 days
Application	extruder gearboxes

Tandem Thrust bearings are also known as "Multi-Stage cylindrical roller thrust bearings" . 

Tandem Thrust bearings are comprised of "stages" which include precision ground and matched thrust plates. These bearings also include compression sleeves separated by cylindrical roller assemblies. This design enables the Tandem Thrust bearings to provide a solution in a radial restricted envelope. The bearings are available in multiple stages, 2-8 to accommodate your design requirements. Depending on your preference, these bearings are available in a wide variety of sizes and options.

TandemThrust Bearings can receive heavy load in a limited space and support firmly in the direction of axis and last long with low frictional power. In addition, these bearings are moved by oil lubrication. Also thesetandem thrust bearings are used principally in gear boxes for single & twin screw extruders in the rubber and plastic industries.

1.Multi-stage cylindrical roller thrust bearing (basic type) adopts elastic spacer to connect the shaft washer,housing washer, roller and cage assembly.

The components of this Thrust Bearings are demountable. The user should assemble or dismount the bearing meticulously according to numeral order we provide.

2. Multi-stage cylindrical roller thrust bearing (shaft type) is made by penetrating an axis through theinner bore of basic type multi-stage cylindrical roller thrust bearing and fastening the bearing to the axis by locking collar. The components of this type of cylindrical roller thrust bearing are inseparable.

3. Multi-stage cylindrical roller thrust bearing (sleeve type) locking collar is made by covering a sleeveto the external of the basic type multi-stage cylindrical roller thrust bearing.It is also inseparable,and is assembled and disassembled as a whole.

Multi-Stage cylindrical roller thrust bearings(Tandem bearings) has the characteristics of limited radial space, high axial forces, equal support of all the rows of rollers and long operating life, and is the ideal spindle of parallel screw extruder.

The tandem bearings provided by our institute has the following types: double rows, three rows, four rows, five rows, six rows and eight rows, we also provided bearings with shaft and sleeve barrel. Customers can have their own selections according to center distance of screws, space and load (Figure 1~3). We also accept the orders of other dimensions.

Application of tandem bearings

When using  tandem bearings, the following recommendations should be adhered to:

1. Preload: 1% of the dynamic basic load rating. The dynamic basic load rating of each tandem bearing see Figure 1~3. Figures not listed will be provided by out institute on request.

2. Radial guidance: full complement cylindrical roller bearings or needle roller bearings can be used.

3. Eliminate tilting: the supporting parts must be machined to eliminate any tilting.

4. Mounting tolerances:  recommended the following mounting tolerances: shaft f6 and housing bore F7.

5. Lubrication: tandem bearings must always be lubricated by oil circulation (Figure 4)

1.Multi-stage cylindrical roller thrust bearing (basic type) adopts elastic spacer to connect the shaftwasher,housing washer, roller and cage assembly.

The components of this Thrust Bearings are demountable. The user should assemble or dismountthe bearing meticulously according to numeral order we provide.

2. Multi-stage cylindrical roller thrust bearing (shaft type) is made by penetrating an axis through theinner bore of basic type multi-stage cylindrical roller thrust bearing and fastening the bearing to theaxis by locking collar.The components of this type of cylindrical roller thrust bearing are inseparable.

3. Multi-stage cylindrical roller thrust bearing (sleeve type) locking collar is made by covering a sleeveto the external of the basic type multi-stage cylindrical roller thrust bearing.It is also inseparable,and is assembled and disassembled as a whole.

Shaft type:This type is another structure derived from the basic type. A shaft is put through the bore of the basic type. The bearing is fixed onto the shaft by some elastic snap ring. This type is not separable and must be mounted as a whole. 

The following points must be observed when using  tandem thrust bearings.

(1)Preload: 1% of rated dynamic load should be put on the bearings first.please refer to the following Fig1~3 for the rated dynamic load for each type.For those not listed in the figs, please contact  technical service .

(2)Radial guidance:Full complement cylindrical roller bearings or needle roller bearings can be used.

(3)Slop avoiding:The supporting parts must be machined to avoid any slop.

(4)Mounting tolerance:For proper using of  tandem thrust bearings,we recommend the following mounting tolerance:shaft f6 and bore F7.

(5)Lubricant:Tandem thrust bearings must be lubricated by rare oil regularly.

(6)Mounting:When mounting or dismantling the bearings, it is prohibited to use hammer or other heavy tools to knock on the bearing parts.

(7)Application examples:

As the tandem thrust bearings have the characteristics of limiting radial cross section, excellent axial loading capacity, long working life and low friction loss, they have been successfully used in the reduction gearbox for the parallel twin screw extruder in the plastic and rubber industry. Tandem thrust bearings are highly recommended to be used in other machines and equipment.

The locking collar is made by covering a sleeve to the external of the basic type multi-stage cylindrical roller thrust bearing. It is also inseparable, and is assembled and disassembled as a whole. So it is convenient to mount the bearing to the housing when it is used.

Applications:

a.Twin screw extruder

b.Pipe laying machines

c.Deep hole drilling

d.Oil pressing machine

Please feel free contact with for more technical support!

Normal type

Sleeve type

Shaft type

Normal MONTON Items list:

Bearing		Dimension (mm)				Row	Loading rate		Mass
New code	Old code	d	D	H	H1		Ca	Coa	KG
M3CT420	T3AR420	4	20	32	32	3	17	42	0.053
M5CT420	T5AR420	4	20	54	54	5	26	69	0.086
M6CT420	T6AR420	4	20	65	65	6	29	83	0.106
M6CT424	T6AR424	4	24	62	60	6	42	112	0.16
M6CT424X1	T6AR424X1	4	24	62	60	6	42	112	0.16
M4CT527	T4AR527	5	27	52	51	4	35.2	83.6	0.155
M4CT527E	T4AR527E	5	27	52	51	4	49	121	0.142
M5CT527	T5AR527	5	27	65	64	5	59	151	0.21
M6CT527	T6AR527	5	27	78	77	6	65	173	0.22
M6CT630	T6AR630	6	30	88	89	6	73	208	0.321
M4CT645E	T4AR645E	6	45	92	92	4	151	444	0.72
M4CT1037	T4AR1037	10	37	78	79	4	91	275	0.486
M5CT1037E	T5AR1037E	10	37	98	99	5	109	343	0.487
M4CT1134	T4AR1134	11	34	52.5	52.5	4	53	180	0.25
M3CT1242E	T3AR1242E	12	42	62.4	62.4	3	99	286	0.41
M4CT1242	T4AR1242	12	42	83.5	82.5	4	124	382	0.62
M5CT1242E	T5AR1242E	12	42	104.6	103	5	148	477	0.75
M5CT1242	T5AR1242	12	42	104.6	103.6	5	148	477	0.776
M6CT1242E	T6AR1242E	12	42	125.7	124.7	6	170	573	0.9
M4CT1858	T4AR1858	18	58	100.5	101	4	203	729	1.426
M5CT1858X2	T5AR1858X2	18	58	107.5	107.5	5	237	974	1.61
M5CT1858	T5AR1858	18	58	126	126.5	5	193	728	1.787
M4CT1860	T4AR1860	18	60	100.5	101	4	182	634	1.62
M6CT1872X2	T6AR1872X2	18	72	172	172	6	471	1931	3.3
M6CT1872	T6AR1872	18	72	172	172.8	6	562	1829	3.51
M7CT1880	T7AR1880	18	80	200	200	7	577	2772	6.83
M7CT18100	T7AR18100	18	100	266	266	7	1023	4560	11.43
M8CT18100	T8AR18100	18	100	304	304	8	1175	4586	13.03
M3CT1949E	T3AR1949E	19	49	67	66.5	3	113	358	0.5
M4CT1949E	T4AR1949E	19	49	88.5	88.5	4	141	477	0.74
M4CT2047	T4AR2047	20	47	78	79	4	115	412	0.67
M5CT2047	T5AR2047	20	47	98	99	5	137	515	0.834
M4CT2060	T4AR2060	20	60	101	101	4	175	810	1.62
M5CT2262	T5AR2262	22	62	110	110	5	263	151	1.78
M6CT2262	T6AR2262	22	62	132	132	6	298	1531	2.1
M4CT2264	T4AR2264	22	64	101	102.5	4	175	610	1.7
M4CT2264E	T4AR2264E	22	64	101	102.5	4	221	921	1.527
M5CT2264	T5AR2264	22	64	127	128.5	5	262	1151	2.065
M5CT2264E	T5AR2264E	22	64	127	128.5	5	263	1151	1.94
M6CT2264E	T6AR2264E	22	64	153	154	6	298	1351	2.234
M6CT2264	T6AR2264	22	64	153	154.5	6	298	1351	2.5
M4CT2362	T4AR2362	23	62	105	104.5	4	176	652	1.63
M3CT2385	T3AR2385	23	85	97	96.5	3	354	1544	3.118
M4CT2385	T4AR2385	23	85	129.5	129	4	443	2059	4.152
M5CT2385	T5AR2385	23	85	162	161.5	5	528	2574	5.143
M6CT2390	T6AR2390	23	90	209.75	209.75	6	700	3029	7.75
M3CT2468	T3AR2468	24	68	70	70	3	176	772	1.4
M5CT2468	T5AR2468	24	68	118	119	5	262	1287	2.32
M6CT2552	T6AR2552	25	52	124	124	6	163	669	1.36
M8CT2552	T8AR2552	25	52	165	165	8	204	892	1.68
M5CT2577	T5AR2577	25	77	134	134	5	337	1671	3.48
M4CT2598	T4AR2598	25	98	149.5	150	4	547	2420	8.3
M6CT25105	T6AR25105	25	105	234	234	6	893	4356	11.9
M7CT25105	T7AR25105	25	105	273	273	7	1008	5082	13.7
M3CT2866	T3AR2866	28	66	82	81.5	3	203	713	1.054
M4CT2866	T4AR2866	28	66	107.5	106.5	4	254	950	1.74
M6CT2872	T6AR2872	28	72	150	150	6	383	1774	3.2
M5CT2876	T5AR2876	28	76	135	132.5	5	428	1664	3.199
M8CT2890	T8AR2890	28	90	281	281	8	755	3379	8.82
M3CT2990	T3AR2990	29	90	98	98	3	349	1544	3.48
M4CT3068	T4AR3068	30	68	100	99.5	4	251	950	1.79
M4CT3073	T4AR3073	30	73	120	122	4	193	722	2.48
M4CT3073E	T4AR3073E	30	73	122	120	4	248	950	2.255
M5CT3073	T5AR3073	30	73	151	153	5	295	1188	3.103
M5CT3073E	T5AR3073E	30	73	151	153	5	314	1287	2.88
M6CT3073	T6AR3073	30	73	182	184	6	339	1426	3.72
M4CT3075YB	T4AR3075YB	30	75	112	103.5	4	248	950	2.29
M4CT30100	T4AR30100	30	100	150.5	151	4	437	2420	6.58
M6CT30127	T6AR30127	30	127	288	286.5	6	1263	6148	21.7
M8CT30127	T8AR30127	30	127	372	372	8	1580	8197	30.97
M2CT3278	T2AR3278	32	78	57.5	53	2	209	666	2.54
M4CT3278	T4AR3278	32	78	110.5	106	4	358	1331	2.58
M5CT3278	T5AR3278	32	78	137	132.5	5	426	1664	3.22
M3CT33105	T3AR33105	33	105	115	115.5	3	461	1997	5.42
M4CT33105	T4AR33105	33	105	150.5	151	4	577	2662	7.11
M4CT3495	T4AR3495	34	95	130	130	4	410	1901	5.166
M5CT3495	T5AR3495	34	95	163	163	5	488	2376	6.43
M6CT3495	T6AR3495	34	95	196	196	6	608	2395	7.28
M8CT3495	T8AR3495	34	95	262	262	8	703	3802	1.68
M5CT36120	T5AR36120	36	120	197	197	5	946	4640	11.19
M4CT38150	T4AR38150	38	150	213	214.5	4	1187	5259	21.7
M6CT38160	T6AR38160	38	160	360	360	6	1761	8874	40.8
M3CT40110	T3AR40110	40	110	123	123	3	516	2360	6.264
M4CT40110	T4AR40110	40	110	164	164	4	645	3146	8.33
M4CT40127	T4AR40127	40	127	177	177	4	885	4387	13.3
M2CT145385	T2AR145385	145	385	233	227	2	3773	19958	147.7
For models or sizes that are not list here, please contact us and we accept customized products produce for customer.