FK10 THK Ball Screw Support Unit

THK round fixed-side support unit for ball screws with a 10 mm bearing journal diameter.

The FK10 contains a factory-preloaded P5 angular-contact bearing set in a DF arrangement, providing accurate shaft positioning and high axial rigidity. Its compact round housing enables straightforward and reliable installation.

The unit is supplied complete with its housing, bearing set, holding lid, collars, seals, lock nut and locking screw.

Product characteristics

Category: Ball screw support units
Manufacturer: THK
Series: FK
Design: Round support unit
Mounting position: Fixed side
Bearing journal diameter: 10 mm
Bearing arrangement: DF angular-contact arrangement
Bearing accuracy: P5
Bearing used: 7000 equivalent
Preload: Factory adjusted
Weight: 0.210 kg
Country of origin: Japan

Main dimensions

Shaft diameter d: 10 mm
Overall length L: 27 mm
Flange thickness H: 10 mm
F: 17 mm
E: 29.5 mm
Housing location diameter D: 34 mm
Housing outside diameter A: 52 mm
Mounting-hole pitch-circle diameter: 42 mm
B: 42 mm
Square dimension T: 16 mm

Mounting method A

L1: 7.5 mm
T1: 5 mm

Mounting method B

L2: 8.5 mm
T2: 6 mm

Mounting-hole dimensions

Number of mounting holes: 4
Hole spacing: 90° equidistant
Through-hole diameter d1: 4.5 mm
Counterbore diameter d2: 8 mm
Counterbore depth h: 4 mm
Holding-lid thread M: M3

Collar dimensions

Collar outside diameter D: 13.9 mm
Collar thickness t: 5.5 mm

Load ratings

Basic dynamic axial load rating Ca: 6.08 kN
Static permissible axial load: 3.1 kN
Axial rigidity: 65 N/μm

Components supplied

Housing: 1
Precision bearing set: 1
Holding lid: 1
Collars: 2
Seals: 2
Lock nut: 1
Hexagonal socket-head locking screw with set piece: 1

The FK10 is designed for the fixed end of a ball screw and can be paired with a THK FF10 supported-side unit.