Description
Dimension B (mm): 20 (H7)
Dimension D (mm): 46 (-0.013 to 0)
Dimension H (mm): 18 (plus or minus 0.13)
Dimension O (mm): 28.8 (Reference)
Dimension SDB (mm): 38.1 (Reference)
Dimension W (mm): 25 (-0.13 to 0)
Outer Diameter (mm): 46 (-0.013 to 0)
Mass (g): 220
Basic Static Load Rating (kN): 274.58 (Radial), 42.16 (Axial)
Material (Ball): SUS440C
Material (Liner): TFE (Tetrafluoroethylene)
Angle (degrees): 12
Rotational Torque (N*m [kgf*cm]): 0.23 to 0.90 [2.3 to 9.2]
Inner Diameter Tolerance (micrometers): 0 to 21
RoHS Directive (10 substances compliant): Compliant
Swing Load (kN): 125.52
Material (Race): SUS410
The Teflon liner is bonded to the inner diameter surface of the race, allowing for sliding motion between the ball’s spherical surface and the Teflon liner surface.
The Teflon liner has self-lubricating properties, so lubricants like grease are not required.
Therefore, it is effective for use in places where oil is undesirable or lubrication is difficult or impossible.
Additionally, since it does not require a lubrication mechanism, it helps to reduce maintenance costs.
The Teflon type spherical is suitable for use under low-speed oscillations.
It also exhibits relatively good performance under vibrational loads. Therefore, in cases where the metal type experiences excessive friction, or is prone to seizure or fatigue failure, replacing it with the Teflon type can be an effective measure to address issues such as fretting on sliding surfaces.
