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MBT,MBT-V

  • Spherical
  • Self Lubricating
  • Standard

Material

RACE 410 Stainless Steel
BALL 440C Stainless Steel
LINER Teflon® / Fabric

Overall View

Overall View:MBT,MBT-V

Part Number

Image:Part Number

Dimension

Dimensions in mm

MINEBEA
PART
No.
øB
H7
øD
0
-0.013
W
0
-0.13
H
±0.13
α
(DEG)
øO
(REF)
S
øDB
(REF)
No Load Rotational Breakaway Torque
N・m
Standerd
MBT3/MBT3V 3 10 5 3.5 15 5.1 7.144 0.12~0.57
{1.2~5.8kgf・cm}
MBT4/MBT4V 4 12 6.5 4.5 17 5.8 8.731
MBT5/MBT5V 5 14.5 7 5.5 10 7.6 10.319
MBT6/MBT6V 6 16.5 8.5 6.5 11 9.4 12.7
MBT8/MBT8V 8 19 9.5 7 12 10.7 14.288
MBT10/MBT10V 10 21 10 8 8 13.3 16.669
MBT12/MBT12V 12 25 13 10 10 15 19.844
MBT14/MBT14V 14 27.5 14 11 8 18.3 23.019
MBT15/MBT15V 15 29 15 12 19.5 24.606
MBT16/MBT16V 16 30 16 12.5 10 18.7
MBT18/MBT18V 18 34 18 14 9 22.2 28.575
MBT20/MBT20V 20 36 19 15 23.4 30.162
MBT22/MBT22V 22 40 22 18 8 25 33.338 0.23~0.90
{2.3~9.2kgf・cm}
MBT25/MBT25V 25 45 25 20 9 28.8 38.1
MBT28/MBT28V 28 50 28 22 34 44.053
MBT30/MBT30V 30 56 30 23 10 37 47.625

Dimensions in mm

MINEBEA
PART
No.
Staking Groove Static Limit Load
kN
Dynamic Load
kN
Approx. Weight
g
S
0
-0.25
X
0
-0.25
R
0
-0.25
P
0
-0.4
Radial Axial
MBT3/MBT3V 0.5 1 0.4 0.7 7.84 0.98 3.43 3
MBT4/MBT4V 12.74 1.56 5.88 4
MBT5/MBT5V 18.63 2.45 8.72 7
MBT6/MBT6V 0.7 1.4 0.5 1 30.4 3.43 13.72 11
MBT8/MBT8V 37.26 3.92 16.67 14
MBT10/MBT10V 50.01 5.19 22.55 19
MBT12/MBT12V 2 1.5 74.53 8.33 33.34 32
MBT14/MBT14V 101.98 15.69 45.11 42
MBT15/MBT15V 118.66 18.63 52.95 50
MBT16/MBT16V 123.56 20.39 54.91 53
MBT18/MBT18V 161.8 25.49 72.56 78
MBT20/MBT20V 182.4 29.41 81.39 89
MBT22/MBT22V 243.2 42.16 108.85 130
MBT25/MBT25V 308.9 51.97 138.27 185
MBT28/MBT28V 393.24 63.74 176.51 255
MBT30/MBT30V 444.24 69.62 199.07 350

Notes

  1. Teflon® 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 Minebea for availability of bearings in this series.

*Teflon® is a Du Pont registered trademark.

Feature of a Product

  • Self Lubricating.

The Teflon® lining is bonded to the inner diameter of the race. The Teflon® 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 Teflon® type can induce the difficulties of metal/metal type such as high friction, seizure, fatigue destruction and fretting on the fluctuating surface.

Associated Data

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