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MBWT,MBWT-V

  • Spherical
  • Self lubricating
  • Wide

Material

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

Overall View

Overall View:MBWT,MBWT-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
MBWT5/MBWT5V 5 16 11 8.5 15 7.8 13.494 0.06~0.57
{0.6~5.8kgf・cm}
MBWT6/MBWT6V 6 0.12~0.57
{1.2~5.8kgf・cm}
MBWT8/MBWT8V 8 17.5 8 14 10.9 15.478
MBWT10/MBWT10V 10 21 12.5 10.5 8 12.2 17.462
MBWT12/MBWT12V 12 26 16 13 10 15.4 22.225
MBWT14/MBWT14V 14 28 17 14 8 18.9 25.4
MBWT15/MBWT15V 15 29 18 11 19 26.194
MBWT16/MBWT16V 16 30 19 15 10 19.2 26.988
MBWT18/MBWT18V 18 33 20 16 20.4 28.575
MBWT20/MBWT20V 20 35 22 13 22.9 31.75
MBWT22/MBWT22V 22 41 19 6 27.1 34.925 0.23~0.90
{2.3~9.2kgf・cm}
MBWT25/MBWT25V 25 54 35 25 15 32.3 47.625
MBWT28/MBWT28V 28 60 14 36.8 50.8
MBWT30/MBWT30V 30 64 37 26 40.4 54.769
MBWT35/MBWT35V 35 65 29 9 44.7 58 0.33~1.70
{3.4~17.3kgf・cm}
MBWT40/MBWT40V 40 68 38 31 8 46.9 60.325
MBWT45/MBWT45V 45 76 41 33 54.1 67.866
MBWT50/MBWT50V 50 82 44 35 60.3 74.612

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
MBWT5/MBWT5V 0.5 1 0.4 0.7 43.14 5.98 18.63 14
MBWT6/MBWT6V 13
MBWT8/MBWT8V 46.09 5.29 20.59 14
MBWT10/MBWT10V 0.7 1.4 0.5 1 68.64 9.21 30.4 23
MBWT12/MBWT12V 116.69 21.57 51.97 46
MBWT14/MBWT14V 143.17 25.49 63.74 55
MBWT15/MBWT15V 148.08 65.7 59
MBWT16/MBWT16V 2 1.5 163.77 29.41 73.54 65
MBWT18/MBWT18V 184.36 33.34 82.37 80
MBWT20/MBWT20V 204.95 92.18 91
MBWT22/MBWT22V 268.7 47.07 120.62 150
MBWT25/MBWT25V 483.46 82.37 216.72 400
MBWT28/MBWT28V 515.82 231.43 490
MBWT30/MBWT30V 578.59 89.24 258.89 590
MBWT35/MBWT35V 682.54 109.83 303.02
MBWT40/MBWT40V 759.03 125.52 337.34 615
MBWT45/MBWT45V 909.07 142.19 404.03 825
MBWT50/MBWT50V 1059.11 156.9 470.71 995

Notes

  1. Teflon® 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 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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