MBT, MBT-V

Spherical Self Lubricating Standard

Spherical bearings are self aligning bearings used extensively on the driven parts in the aerospace, automobiles, railways and industrial machines. We offer distinctive products that will fit your needs, such as PTFE bearings that have a self-lubricating function, or metal to metal bearings that perform well under static and high load environment.
Please consult with our sales unit when designing for special purposes.

Feature of a Product

・Self Lubricating.
The PTFE lining is bonded to the inner diameter of the race. The PTFE Liner acts as a lubricant and therefore no other lubrication is necessary. Thus they are eminently suitable to apply where re-lubrication is impractical or impossible. More over, as they don't require any lubrication, they are effective to lower the maintenance cost. They perform well under slow fluctuation velocity and oscillation load. Therefore PTFE type can induce the difficulties of metal/metal type such as high friction, seizure, fatigue destruction and fretting on the fluctuating surface.

Dimensions in mm

Click the arrow icon in the table below to switch from ascending to descending order.

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Part No.	øB H7	φD 0-0.013	W 0-0.13	H ±0.13	α DEG	øO(REF)	SøDB(REF)	No Load Rotational Breakaway Torque - Standerd Type lower limit [N･m]	No Load Rotational Breakaway Torque - Standerd Type upper limit [N･m]	No Load Rotational Breakaway Torque - Standerd Type lower limit [kgf・cm]	No Load Rotational Breakaway Torque - Standerd Type upper limit [kgf・cm]	Staking groove S 0-0.25	Staking groove X 0-0.25	Staking groove R 0-0.25	Staking groove P 0-0.4	Static Limit load(Radial) [kN]	Static Limit load(Axial) [kN]	Dynamic Load [kN]	Approx. Weight [g]
MBT3/MBT3V	3	10.0	5.0	3.50	15	5.1	7.144	0.12	0.57	1.2	5.8	0.5	1.0	0.4	0.7	7.84	0.98	3.43	3
MBT4/MBT4V	4	12.0	6.5	4.50	17	5.8	8.731	0.12	0.57	1.2	5.8	0.5	1.0	0.4	0.7	12.74	1.56	5.88	4
MBT5/MBT5V	5	14.5	7.0	5.50	10	7.6	10.319	0.12	0.57	1.2	5.8	0.5	1.0	0.4	0.7	18.63	2.45	8.72	7
MBT6/MBT6V	6	16.5	8.5	6.50	11	9.4	12.700	0.12	0.57	1.2	5.8	0.7	1.4	0.5	1.0	30.40	3.43	13.72	11
MBT8/MBT8V	8	19.0	9.5	7.00	12	10.7	14.288	0.12	0.57	1.2	5.8	0.7	1.4	0.5	1.0	37.26	3.92	16.67	14
MBT10/MBT10V	10	21.0	10.0	8.00	8	13.3	16.669	0.12	0.57	1.2	5.8	0.7	1.4	0.5	1.0	50.01	5.19	22.55	19
MBT12/MBT12V	12	25.0	13.0	10.00	10	15.0	19.844	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	74.53	8.33	33.34	32
MBT14/MBT14V	14	27.5	14.0	11.00	8	18.3	23.019	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	101.98	15.69	45.11	42
MBT15/MBT15V	15	29.0	15.0	12.00	8	19.5	24.606	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	118.66	18.63	52.95	50
MBT16/MBT16V	16	30.0	16.0	12.50	10	18.7	24.606	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	123.56	20.39	54.91	53
MBT18/MBT18V	18	34.0	18.0	14.00	9	22.2	28.575	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	161.80	25.49	72.56	78
MBT20/MBT20V	20	36.0	19.0	15.00	9	23.4	30.162	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	182.40	29.41	81.39	89
MBT22/MBT22V	22	40.0	22.0	18.00	8	25.0	33.338	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	243.20	42.16	108.85	130
MBT25/MBT25V	25	45.0	25.0	20.00	9	28.8	38.100	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	308.90	51.97	138.27	185
MBT28/MBT28V	28	50.0	28.0	22.00	9	34.0	44.053	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	393.24	63.74	176.51	255
MBT30/MBT30V	30	56.0	30.0	23.00	10	37.0	47.625	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	444.24	69.62	199.07	350

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(P/N)

RACE

BALL

LINER

MBT, MBT-V 410 Stainless Steel 440C Stainless Steel PTFE / Fabric
1. PTFE liner permanently bonded to race I.D.
2. MBT & MBT-V weights are similar.
3. Made to order only.
4. No Load Rotational Breakaway Torque.
Low Torque All Size: 0.02N・m MAX (Radial Clearance 0.05mm MAX)

*Please consult MinebeaMitsumi for availability of bearings in this series.
Associated Data
- Product Catalog