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Ball Screw Support Units

GWFF35

GWFF35
GWFF35
★ Screw support - High-load fixed end. ★ Employs TAC angular contact ball bearings. ★ Bearing assemblies are available in face-to-face (DF) and three-row (DFD) configurations.
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Total of 2 models
Model GWFF35-DF GWFF35-DFD
Inquiry Add To Inquiry Add To Inquiry
Material S50C S50C
Surface Treatment B: Dyed black B: Dyed black
Surface Treatment N: Electroless nickel N: Electroless nickel
bearing assembly DF: Face-to-face combination DFD: Three-column combination
Ød (mm) 35 35
ØD (mm) 95 95
ØD1 (mm) 142 142
ØD2 (mm) 102 102
Ød3 (mm) 69 69
L (mm) 66 81
L1 (mm) 33 48
L2 (mm) 18 18
A (mm) 106 106
PCD (1) (mm) 121 121
PCD (2) (mm) 80 80
Ød1 (mm) 10.7 10.7
Ød2 (mm) 17.5 17.5
Z (mm) 11 11
T (mm) 4 4
M1 (mm) M6 M6
Q (mm) 14 14
Single roller load - Basic dynamic load (C) (N) 31000 50500
Axial limit load (N) 50000 100000
Preload (N) 3800 5200
Axial stiffness (N/um) 1180 1710
Starting torque (N・cm) 28 37
Ød (mm) 35 35
L3 (mm) 92 107
L4 (mm) 30 30
M (mm) M35 x P1.5 M35 x P1.5
Ød4 (mm) 55 55
L5 (mm) twenty two twenty two
Weight (Kg) 3.4 4.3
Product Overview

Model Description 

 


Recommended shaft end machining dimensions

Introduction to screw support

 Pre-compression and application instructions

- Light preload (L)

* Applicable conditions: Equipment with a fixed load direction that requires low vibration, low impact force, low sliding resistance, or high speed.

* Suggested applications: beam welding machinery, automatic packaging machines, light CNC milling machines, general industrial machinery moving shafts, automatic door and window processing machines, welding machines, fusing machines, tool changing devices, binding machinery, various material supply devices, CNC engraving and milling machines.

- Medium preloading (M)

* Applicable conditions: Devices with cantilever loads or torques, single-axis applications, and light-load, high-precision equipment.

* Suggested applications: Grinding machine table feed axes, automatic coating machines, measuring instruments, various high-speed material supply devices, precision XY platforms, axes of general industrial machinery, drilling machines for printed circuit boards, electrical discharge machining (EDM) machines, industrial robots, NC lathes.

- Heavy preloading (H)

* Applicable conditions: Equipment requiring high rigidity, and subjected to large vibrations, impacts, and high torques.

* Suggested applications: machining center spindles, NC lathes, Z-axis of machine tools, milling machines, grinding wheel feed axes of grinding machines.

 

GMT screw support preload purpose explanation

- Objective: 1. To improve the rotational accuracy of the shaft.

2. Improve shaft rigidity

3. Prevent shaft vibration and abnormal noise.

4. Prevent vibration and impact marks during bearing shutdown.

- What is preload: Using the rated load (N) value and the measured (L) value of a pair of bearings, after being placed into the fixed end, pressure is applied to the outer ring by the bearing cap to connect the two shafts and generate preload.

Product Selection Considerations

-[model]Select the screw support series according to the screw support 'installation method'.

Installation method:

1. Flat mounting type: GAK, GBK, GEK, GAF, GBF, GEF, GSW, GSWE, GUN, GTN.

2. Embedded installation type: GFK, GFF, GRW, GRWE, GUR, GTR.

-[Specification]Then select the model based on the screw's outer diameter and center height.

-[grade]Distinguished by standard and economy models.

-[Pre-compression]Bearing preload can be selected according to customer requirements.

-[Table format]The surface treatment method depends on the usage environment: electroless nickel plating or blackening.

Blackening: Under normal conditions (low humidity).

Electroless nickel (also known as electroless nickel): Cleanroom.

-[Bearing Series]There are Japanese and Taiwanese bearings.

Screw support assembly example & steps




Comparison Table of Screw Support Housing Combination Bearing Models
Encoding table
Symbol Explanation
Speed ​​Reference Table
Bearing load reference table

Model

GWFF35-DF
GWFF35-DFD
Specifications
Material
Surface Treatment
bearing assembly
Ød (mm)
ØD (mm)
ØD1 (mm)
ØD2 (mm)
Ød3 (mm)
L (mm)
L1 (mm)
L2 (mm)
A (mm)
PCD (1) (mm)
PCD (2) (mm)
Ød1 (mm)
Ød2 (mm)
Z (mm)
T (mm)
M1 (mm)
Q (mm)
Single roller load - Basic dynamic load (C) (N)
Axial limit load (N)
Preload (N)
Axial stiffness (N/um)
Starting torque (N・cm)
Ød (mm)
L3 (mm)
L4 (mm)
M (mm)
Ød4 (mm)
L5 (mm)
Weight (Kg)