800.514.3066

customer service

Kaydon slewing bearings

MT series

Kaydon's MT series heavy duty slewing ring bearings offer a wide variety of solutions for applications such as truck mounted cranes, hoists, and non-precision industrial tables and positioners, providing optimal economy and capacity for a given envelope dimension.

Log in to access 3D models,
CAD files, and engineering software

Forgot password? | Register

Specifications

No gear
External gear
Mating pinions
Notes & related items

Design features
MT Series slewing ring bearings have a rectangular cross-section and range in size from 4–47 inches OD (100–1200 mm). The internal configuration consists of deep groove gothic arch raceways and maximum ball complement. This results in a four-point contact design that provides exceptional moment, thrust, and radial load capacities. Integral face riding seals for the larger sizes, and non-contact shields for the smaller, assist in the exclusion of contaminants. These features make MT series heavy duty slewing rings an ideal choice for a wide range of applications from light to heavy duty.

MT series slewing ring bearings are offered in nongeared (MTO) and externally geared (MTE) configurations. The gears are Fellows Stub Involute up to the MTE-324 size and Stub Involute for larger sizes, all manufactured to AGMA Class Q6 quality. MT series slewing bearings feature ball pitch diameters from 9" to 40" and moment load ratings up to 870,000 ft.-lbs.

Availability
MT series slewing bearings are generally available from stock, and mating pinions for the geared versions through MTE-705 are also generally available.

Applications
MT series slewing ring bearings have been used successfully in a wide range of applications from light to heavy duty. The smaller sizes are well suited for:

Manipulators
Jib cranes
Lift-assist devices
Work positioners

Larger sizes are well suited for:

Truck-mounted cranes
Aerial lifts
Hoists
Small wind turbines
Non-precision positioning tables

Click on the Kaydon part number to view and download 3D models and CAD files. You must login or register before accessing drawings.

See glossary of symbols

No gear
Kaydon part number	Load chart	Outline dimensions & weight					Mounting holes						Moment rating C_rm (ft-lbs)
		D_o (in)	d_i (in)	H (in)	H_i / H_o (in)	G approx. (lbs)	Outer ring			Inner ring
		D_o (in)	d_i (in)	H (in)	H_i / H_o (in)	G approx. (lbs)	L_o (in)	n_o	B_o (in)	L_i (in)	n_i	B_i (in)
MTO-050		4.331	1.968	0.787	0.728	2	3.818	8	0.26	2.480	8	0.26	675
MTO-050T		4.331	1.968	0.787	0.728	2	3.818	8	M6	2.480	8	M6	675
MTO-065		5.315	2.559	0.866	0.787	4	4.724	8	0.354	3.149	8	0.354	1,075
MTO-065T		5.315	2.559	0.866	0.787	4	4.724	8	M8	3.149	8	M8	1,075
MTO-122		8.898	4.803	1.339	1.142	13	8.189	12	0.354	5.512	12	0.354	5,020
MTO-122T		8.898	4.803	1.339	1.142	13	8.189	12	M8	5.512	12	M8	5,020
MTO-143		9.803	5.630	1.339	1.142	15	8.937	12	0.433	6.496	12	0.433	8,950
MTO-143T		9.803	5.630	1.339	1.142	15	8.937	12	M10	6.496	12	M10	8,950
MTO-145		11.811	5.709	1.968	1.732	37	10.630	16	0.562	6.890	16	0.562	26,000
MTO-145T		11.811	5.709	1.968	1.732	37	10.630	16	5/8-11	6.890	16	5/8-11	26,000
MTO-145X		12.286	5.709	1.968	1.732	41	10.630	16	0.594	6.890	16	0.594	30,600
MTO-145XT		12.286	5.709	1.968	1.732	41	10.630	16	9/16-12 UNC	6.890	16	9/16-12 UNC	30,600
MTO-170		12.205	6.693	1.811	1.614	33	11.024	12	0.512	7.874	12	0.512	16,520
MTO-170T		12.205	6.693	1.811	1.614	33	11.024	12	M12	7.874	12	M12	16,520
MTO-210		14.370	8.268	1.575	1.496	38	13.190	16	0.562	9.449	20	0.562	44,500
MTO-210T		14.370	8.268	1.575	1.496	38	13.190	16	5/8-11	9.449	20	5/8-11	44,500
MTO-210X		14.686	8.268	1.968	1.732	48	13.190	16	0.594	9.449	20	0.594	52,100
MTO-210XT		14.686	8.268	1.968	1.732	48	13.190	16	9/16-12 UNC	9.449	20	9/16-12 UNC	52,100
MTO-265		16.535	10.433	1.968	1.732	54	15.354	18	0.562	11.614	24	0.562	62,000
MTO-265T		16.535	10.433	1.968	1.732	54	15.354	18	5/8-11	11.614	24	5/8-11	62,000
MTO-265X		17.086	10.433	1.968	1.732	61	15.354	18	0.594	11.614	24	0.594	71,900
MTO-265XT		17.086	10.433	1.968	1.732	61	15.354	18	9/16-12 UNC	11.614	24	9/16-12 UNC	71,900
MTO-324T		20.486	12.750	2.062	2.022	105	18.875	20	5/8-11	14.375	20	5/8-11	102,400
MTO-324X		20.486	12.770	2.375	2.063	105	18.875	20	0.688	14.375	20	0.688	102,400
MTO-415		24.650	16.250	2.375	2.063	145	22.250	16	0.813	17.75	20	0.813	159,000
MTO-415T		24.650	16.250	2.375	2.063	145	22.250	16	3/4-10 UNC	17.75	20	3/4-10 UNC	159,000
MTO-470		26.900	18.500	2.375	2.063	155	24.500	18	0.813	20.000	24	0.813	188,000
MTO-470T		26.900	18.500	2.375	2.063	155	24.500	18	3/4-10 UNC	20.000	24	3/4-10 UNC	188,000
MTO-540		29.650	21.250	2.375	2.063	180	27.250	24	0.813	22.750	28	0.813	232,000
MTO-540T		29.650	21.250	2.375	2.063	180	27.250	24	3/4-10 UNC	22.750	28	3/4-10 UNC	232,000
MTO-590		33.534	23.125	2.875	2.563	305	30.625	18	0.938	24.875	24	0.938	338,000
MTO-590T		33.534	23.125	2.875	2.563	305	30.625	18	7/8-9 UNC	24.875	24	7/8-9 UNC	338,000
MTO-705		38.201	27.750	2.875	2.563	350	35.250	24	0.938	29.500	28	0.938	443,000
MTO-705T		38.201	27.750	2.875	2.563	350	35.250	24	7/8-9 UNC	29.500	28	7/8-9 UNC	443,000
MTO-730		41.850	28.750	3.250	2.880	530	38.000	20	1.063	31.000	24	1.063	587,000
MTO-730T		41.850	28.750	3.250	2.880	530	38.000	20	1-8 UNC	31.000	24	1-8 UNC	587,000
MTO-870		47.444	34.250	4.250	3.875	835	43.875	24	1.188	36.250	28	1.188	873,000
MTO-870T		47.444	34.250	4.250	3.875	835	43.875	24	1 1/8-7 UNC	36.250	28	1 1/8-7 UNC	873,000
Part number MTO-324 has been superseded by MTO-324T

See glossary of symbols

External gear
Kaydon part number	Load chart	Outline dimensions & weight					Mounting holes						Gear data α = 20°					Max gear tooth load F_z (lbs)	Moment rating C_rm (ft-lbs)
		D_o (in)	d_i (in)	H (in)	H_i / H_o (in)	G approx. (lbs)	Outer ring			Inner ring			Gear data α = 20°
		D_o (in)	d_i (in)	H (in)	H_i / H_o (in)	G approx. (lbs)	L_o (in)	n_o	B_o (in)	L_i (in)	n_i	B_i (in)	Tooth form	D₂ (in)	P_d	z₂	b₂ (in)
MTE-145		12.286	5.709	1.968	1.732	38	10.630	16	0.562	6.890	16	0.562	FS	12.000	5/7	60	1.732	7,140	26,000
MTE-145T		12.286	5.709	1.968	1.732	38	10.630	16	5/8-11	6.890	16	5/8-11	FS	12.000	5/7	60	1.732	7,140	26,000
MTE-145X		12.286	5.709	1.968	1.732	38	10.630	16	0.594	6.890	16	0.594	FS	12.000	5/7	60	1.732	7,140	30,600
MTE-210		14.686	8.268	1.575	1.496	38	13.190	16	0.562	9.449	20	0.562	FS	14.400	5/7	72	1.496	5,810	44,500
MTE-210T		14.686	8.268	1.575	1.496	38	13.190	16	5/8-11	9.449	20	5/8-11	FS	14.400	5/7	72	1.496	5,810	44,500
MTE-210X		14.686	8.268	1.968	1.732	44	13.190	16	0.594	9.449	20	0.594	FS	14.400	5/7	72	1.732	7,290	52,100
MTE-265		17.086	10.433	1.968	1.732	57	15.354	18	0.562	11.614	24	0.562	FS	16.800	5/7	84	1.732	7,330	62,000
MTE-265T		17.086	10.433	1.968	1.732	57	15.354	18	5/8-11	11.614	24	5/8-11	FS	16.800	5/7	84	1.732	7,330	62,000
MTE-265X		17.086	10.433	1.968	1.732	57	15.354	18	0.594	11.614	24	0.594	FS	16.800	5/7	84	1.732	7,330	71,900
MTE-324T		20.486	12.750	2.062	2.022	98	18.875	20	5/8-11	14.375	20	5/8-11	FS	20.200	5/7	101	2.022	8,700	102,400
MTE-324X		20.486	12.770	2.375	2.063	99	18.875	20	0.688	14.375	20	0.688	FS	20.200	5/7	101	2.063	8,863	102,400
MTE-415		24.650	16.250	2.375	2.063	132	22.250	16	0.813	17.750	20	0.813	SD	24.250	4	97	2.063	10,420	159,200
MTE-415T		24.650	16.250	2.375	2.063	132	22.250	16	3/4-10	17.750	20	3/4-10	SD	24.250	4	97	2.063	10,420	159,200
MTE-470		26.900	18.500	2.375	2.063	147	24.500	18	0.813	20.000	24	0.813	SD	26.500	4	106	2.063	10,460	191,600
MTE-470T		26.900	18.500	2.375	2.063	147	24.500	18	3/4-10	20.000	24	3/4-10	SD	26.500	4	106	2.063	10,460	191,600
MTE-540		29.650	21.250	2.375	2.063	163	27.250	24	0.813	22.750	28	0.813	SD	29.250	4	117	2.063	10,520	232,000
MTE-540T		29.650	21.250	2.375	2.063	163	27.250	24	3/4-10	22.750	28	3/4-10	SD	29.250	4	117	2.063	10,520	232,000
MTE-590		33.534	23.125	2.875	2.563	283	30.625	18	0.938	24.875	24	0.938	SD	33.000	3	99	2.563	17,290	338,700
MTE-590T		33.534	23.125	2.875	2.563	283	30.625	18	7/8-9	24.875	24	7/8-9	SD	33.000	3	99	2.563	17,290	338,700
MTE-705		38.201	27.750	2.875	2.563	325	35.250	24	0.938	29.500	28	0.938	SD	37.667	3	113	2.563	17,390	443,200
MTE-705T		38.201	27.750	2.875	2.563	325	35.250	24	7/8-9	29.500	28	7/8-9	SD	37.667	3	113	2.563	17,390	443,200
MTE-730		41.850	28.750	3.250	2.880	491	38.000	20	1.063	31.000	24	1.063	SD	41.200	2.5	103	2.630	21,290	588,000
MTE-730T		41.850	28.750	3.250	2.880	491	38.000	20	1-8	31.000	24	1-8	SD	41.200	2.5	103	2.630	21,290	588,000
MTE-870		47.444	34.250	4.250	3.875	771	43.875	24	1.188	36.250	28	1.188	SD	46.800	2.5	117	3.875	31,620	873,800
MTE-870T		47.444	34.250	4.250	3.875	771	43.875	24	1 1/8-7	36.250	28	1 1/8-7	SD	46.800	2.5	117	3.875	31,620	873,800
Part number MTE-324 has been superseded by MTE-324T

See glossary of symbols

Mating pinions
Bearing part number	Pinion part number	Gear data (α = 20°)				Outline dimensions & weight
Bearing part number	Pinion part number	Tooth form	z₁	P_d (in)	b₁ (in)	L₁ (in)	D₁ (in)	D_o1 (in)	D_r1 (in)	D_i1 (in)	w (in)	G approx. (lbs)
MTE-145 thru MTE-324	39201001	FS	17	5/7	2.250	3.125	3.400	3.686	2.906	1.000	1/4	6.6
MTE-415 thru MTE-540	39200001 39200002	SD	14 17	4 4	2.000 2.000	2.880 2.880	3.500 4.250	3.900 4.650	2.880 3.630	1.000 1.000	1/4	6.4 10.0
MTE-590 thru MTE-705	39200003 39200004	SD	14 17	3 3	2.000 2.000	2.880 2.880	4.667 5.667	5.200 6.200	3.880 4.880	1.250 1.250	5/16	11.4 18.3
Tolerances				Ref.	±.015	±.015	Ref.	-.010	Ref.	+.002

Notes
Damage to equipment and danger to human life can result from failure to heed the recommendations in the text identified by the warning symbol in Kaydon Catalog 390 where further details and additional considerations can be found.

Related downloads
Catalog 390: MT series (Adobe PDF)
Catalog 390: MT series mating pinions (Adobe PDF)
Catalog 390: all pages (Adobe PDF)

Adobe Acrobat Reader


	About Overview 75 years News Trade shows Kaydon companies Locations Certifications Engineering R & D Jobs Home Site map Search Login Register Forgot password	Thin section bearings Overview Bearing selector Reali-Slim® bearings: Open bearings Sealed bearings Endurakote® bearings Stainless steel bearings MM® metric bearings TT® turntables Ultra-Slim® bearings Custom bearings	Slewing ring bearings Overview Slewing bearing selector Four-point contact: RK slewing bearings HS slewing bearings HT slewing bearings MT slewing bearings KH slewing bearings XT slewing bearings Eight-point contact: DT slewing bearings Cross roller: XR slewing bearings Three-row roller: TR slewing bearings	Bearing repair Overview Our process Case studies White papers FAQs Request for quote	Markets Aerospace & defense Commercial aerospace Heavy equipment Industrial machinery Medical systems Mining Oil & gas Robotics Semiconductor Solar panels Wind turbines	Resources Thin section bearing selector Slewing bearing selector Engineering software Videos Lit downloads Thin bearing CAD models Slewing bearing CAD models Case studies White papers FAQs Distributors North America International	Contact Contact directory Contact form Request for quote: Standard products Bearing remanufacturing Specification data sheets: Custom bearings Slewing ring bearings Return material request Supplier info Terms & conditions Privacy policy Site ownership Cookies General conditions of sales

©2010–2023 Kaydon® Bearings, an SKF Group Company. All rights reserved. ®SKF and Kaydon® are registered trademarks of the SKF Group. Muskegon, Michigan USA \| 231.755.3741 \| 800.514.3066