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LBF Set

Flanged Nut
The spline nut can be attached to the housing via the flange, making assembly simple. It is optimal for locations where the housing may be deformed if a keyway is machined on its surface, and where the housing width is small.
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Nut Qty Clear
In stock
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*Please contact THK if you need more than available quantity or out of stock items
Attributes Part Number Unit Price Quantity Days to Ship Item Total
Shaft O.D. (mm): 15
Shaft Length (mm): 400
Nut Qty: 1
LBF15UU+400L
Days to Ship: 2 - 3 weeks*
Shaft O.D. (mm): 20
Shaft Length (mm): 400
Nut Qty: 1
LBF20UU+400L
Days to Ship: 2 - 3 weeks*
LBF25UU+700L
Out of stock
Out of stock ? Contact us to place an order
LBF30UU+500L
Out of stock
Out of stock ? Contact us to place an order
Shaft O.D. (mm): 40
Shaft Length (mm): 500
Nut Qty: 1
LBF40UU+500L
Days to Ship: 2 - 3 weeks*
Shaft O.D. (mm): 50
Shaft Length (mm): 500
Nut Qty: 1
LBF50UU+500L
Days to Ship: 2 - 3 weeks*
Shaft O.D. (mm): 15
Shaft Length (mm): 400
Nut Qty: 2
2LBF15UU+400L
Days to Ship: 2 - 3 weeks*
Shaft O.D. (mm): 20
Shaft Length (mm): 400
Nut Qty: 2
2LBF20UU+400L
Days to Ship: 2 - 3 weeks*
Shaft O.D. (mm): 25
Shaft Length (mm): 700
Nut Qty: 2
2LBF25UU+700L
Days to Ship: 2 - 3 weeks*
Shaft O.D. (mm): 30
Shaft Length (mm): 500
Nut Qty: 2
2LBF30UU+500L
Days to Ship: 2 - 3 weeks*
Model No. Spline nut dimensions Basic torque rating Basic load rating(Radial) Static permissible moment
Outer diameter Length Flange diameter H F Greasingholed0 PCD Mounting holed1xd2xh
D Tolerance L Tolerance D1 Tolerance Dynamic CT Static C0T Dynamic C Static C0 MA.1** MA.2**
mm mm mm mm mm mm mm mm mm mm mm N-m N-m kN kN N-m N-m
LBF15 23 0-0.013 40 0-0.2 43 0-0.2 7 13 2 32 4.5×8×4.4 30.4 74.5 4.4 8.4 25.4 185
LBF20 30 0-0.016 50 49 7 18 2 38 4.5×8×4.4 74.5 160 7.8 14.9 60.2 408
LBF25 37 60 0-0.3 60 9 21 2 47 5.5×9.5×5.4 154 307 13 23.5 118 760
LBF30 45 70 70 10 25 3 54 6.6×11×6.5 273 538 19.3 33.8 203 1270
LBF40 57 0-0.019 90 90 14 31 3 70 9×14×8.6 599 1140 31.9 53.4 387 2640
LBF50 70 100 108 0-0.3 16 34 4 86 11×17.5×11 1100 1940 46.6 73 594 4050
Note **: MA.1 indicates the permissible moment value in the axial direction when a single spline nut is used. MA.2 indicates the permissible moment value in the axial direction when two spline nuts in close contact with each other are used.AFB-LF is the default grease. For more detailed specifications, please download the Product Catalog with the link in the Downloads section of this product page.
Number of nutson one shaft Model Size Seal Type Rail Length
2 LBF 25 UU + 700L
No symbol : 1 nut LBF 15 UU : end seal on both sides 400L
2   20 500L
  25 700L
  30
  40
  50