MBWT, MBWT-V

Spherical Self Lubricating Wide

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]
MBWT5/MBWT5V	5	16.0	11.0	8.50	15	7.8	13.494	0.06	0.57	0.6	5.8	0.5	1.0	0.4	0.7	43.14	5.98	18.63	14
MBWT6/MBWT6V	6	16.0	11.0	8.50	15	7.8	13.494	0.12	0.57	1.2	5.8	0.5	1.0	0.4	0.7	43.14	5.98	18.63	13
MBWT8/MBWT8V	8	17.5	11.0	8.00	14	10.9	15.478	0.12	0.57	1.2	5.8	0.5	1.0	0.4	0.7	46.09	5.29	20.59	14
MBWT10/MBWT10V	10	21.0	12.5	10.50	8	12.2	17.462	0.12	0.57	1.2	5.8	0.7	1.4	0.5	1.0	68.64	9.21	30.40	23
MBWT12/MBWT12V	12	26.0	16.0	13.00	10	15.4	22.225	0.12	0.57	1.2	5.8	0.7	1.4	0.5	1.0	116.69	21.57	51.97	46
MBWT14/MBWT14V	14	28.0	17.0	14.00	8	18.9	25.400	0.12	0.57	1.2	5.8	0.7	1.4	0.5	1.0	143.17	25.49	63.74	55
MBWT15/MBWT15V	15	29.0	18.0	14.00	11	19.0	26.194	0.12	0.57	1.2	5.8	0.7	1.4	0.5	1.0	148.08	25.49	65.70	59
MBWT16/MBWT16V	16	30.0	19.0	15.00	10	19.2	26.988	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	163.77	29.41	73.54	65
MBWT18/MBWT18V	18	33.0	20.0	16.00	10	20.4	28.575	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	184.36	33.34	82.37	80
MBWT20/MBWT20V	20	35.0	22.0	16.00	13	22.9	31.750	0.12	0.57	1.2	5.8	0.7	2.0	0.5	1.5	204.95	33.34	92.18	91
MBWT22/MBWT22V	22	41.0	22.0	19.00	6	27.1	34.925	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	268.70	47.07	120.62	150
MBWT25/MBWT25V	25	54.0	35.0	25.00	15	32.3	47.625	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	483.46	82.37	216.72	400
MBWT28/MBWT28V	28	60.0	35.0	25.00	14	36.8	50.800	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	515.82	82.37	231.43	490
MBWT30/MBWT30V	30	64.0	37.0	26.00	14	40.4	54.769	0.23	0.90	2.3	9.2	0.7	2.0	0.5	1.5	578.59	89.24	258.89	590
MBWT35/MBWT35V	35	65.0	37.0	29.00	9	44.7	58.000	0.33	1.70	3.4	17.3	0.7	2.0	0.5	1.5	682.54	109.83	303.02	590
MBWT40/MBWT40V	40	68.0	38.0	31.00	8	46.9	60.325	0.33	1.70	3.4	17.3	0.7	2.0	0.5	1.5	759.03	125.52	337.34	615
MBWT45/MBWT45V	45	76.0	41.0	33.00	8	54.1	67.866	0.33	1.70	3.4	17.3	0.7	2.0	0.5	1.5	909.07	142.19	404.03	825
MBWT50/MBWT50V	50	82.0	44.0	35.00	8	60.3	74.612	0.33	1.70	3.4	17.3	0.7	2.0	0.5	1.5	1059.11	156.90	470.71	995

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(P/N)

RACE

BALL

LINER

MBWT, MBWT-V 410 Stainless Steel 440C Stainless Steel PTFE / Fabric
1. PTFE liner permanently bonded to race I.D.
2. MBWT & MBWT-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