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Spherical bearings

MBT, MBT-V

  • Spherical
  • Self Lubricating
  • Standard

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.

Material

(P/N) RACE BALL LINER
MBT, MBT-V 410 Stainless Steel 440C Stainless Steel PTFE / Fabric

Overall View

Part Number

Dimension

Dimensions in mm

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]

Notes

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.

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Associated Data

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