Model No. |
GFK17-ER |
GFK17-EG |
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Specification |
Material |
S50C | ||
Surface Finish |
B:Black Dyed
N:Ni-Plating |
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Pre-loaded |
ER:High rigidity assembly | EG:Universal assembly | ||
Dimensions |
Ød (mm) |
17 | ||
ØR (mm) |
77 | |||
口G (mm) |
61 | |||
T (mm) |
45 | |||
H (mm) |
22 | |||
F (mm) |
23 | |||
ØD (-0.01, -0.03) (mm) |
50 | |||
E (mm) |
47 | |||
Installation (A) |
T1 (mm) |
11 | ||
E1 (mm) |
9 | |||
Installation (B) |
T2 (mm) |
14 | ||
E2 (mm) |
12 | |||
Dimensions |
PCD (mm) |
62 | ||
Ød1 (mm) |
6.6 | |||
Ød2 (mm) |
11 | |||
Z (mm) |
10 | |||
M1 (mm) |
M4 | |||
口S (mm) |
24 | |||
Recommended Processing Dimensions of Shaft |
Ball Screw Shaft |
ØD (mm) |
20 / 25 | |
Shaft End Dia. |
Ød (mm) |
17 (-0.005, -0.014) | ||
Processing sizes of shaft |
ØA (mm) |
15 | ||
B (mm) |
53 | |||
C (mm) |
23 | |||
Nominal Thread |
M (mm) |
M17 x P 1.0 | ||
L (mm) |
17 | |||
Space Ring Length |
T4 (mm) |
10 |
Support Unit Introduction |
♦ Preload selection and applications – Light (L) * Machine Requirements:Equipments with small vibration and small thrust, load in one fixed direction. High accuracy is not required. Reduction of frictional force. * Application Examples:Laser welder, small CNCmill machine, cutter, welder, automatic tool changer, packing machine, material supply equipment. – Medium (M) * Machine Requirements:Equipments with load on a post. Equipments with a torque acting on it. Equipments working in one direction. Equipments with low load. Equipments with high accuracy. * Application Examples:Automated feeder, linear feeder, automatedpainting machine, precision slide table, Z-axis control on machines, PC board punch machine. Industrial robot, EDM machine, NC lathe. – Heavy (H) * Machine Requirements:High rigidity, high vibration, high thrust equipments. High load, high torque equipments. * Application Examples:Machining center spindle, NC lathe, Z-axis spindle of the machinery, milling machine, grinding wheel feeding of grinding machine.
♦ Pre-Loaded Description – Purpose:1. Increase the rotational accuracy of axle 2. Increase the rigidity of axle 3. Reduce unwanted clearance 4. Reduce vibration and noise while bearing stops. – What is bearing preload?:The preload describes the process wherein a permenant thrust road is applied to the bearing, so that the bearing is secure in the groove and has no axial clearence. Apply normal force (N). Measure value of L of a pair of bearings. L=L1+L2. Press these pair of bearings on the covers to apply preload and bring these bearings together
♦ Selection Notes – [ Model ]:Pick up the model according to assembly method. Assembly: 1. Plane mounting:GAK、GBK、GEK、GAF、GBF、GEF、GSW、GSWE、GUN、GTN。 2. Suspension and spindle mount:GFK、GFF、GRW、GRWE、GUR、GTR。 – [ Size ]:Decide the size according to the ballscrew shaft O.D., and the center height. – [ Grade ]:Standard and economic types for options. – [ Pre-loaded ]:Decide pre-loaded of the bearing per needs. – [ Surface Finish ]: Black dyed – Regular environment use, low humidity. Nickel plating – Clean room use. – [ Bearing category ]:Available Japanese series and Taiwanese series. |
Support Unit Assembly models & Steps |
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