Ball Screw Covers

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Centry Cover

■ Operating Personnel

centry Covers protect skilled operating personnel form exposure to machiney hazards, reduce operating housekeeping,

guard the accuracy of precision equipmentand eliminate potential for damaged machinery and costly downtime.

Easily installed, Centry Covers automatically expand to protect precision equipmentand controlling sufaces form the debris,

chips and contaminants often found in the working environment.

Available in a variety of resilient metals including corrosion resistant materals, Centry Covers are manu-factured in a

complete range of sizes to meet any OEM specilication.

Centry Covers are made to specific sizes and must be used as such, without modification.

The are made as integral units and cannot be cut to length are coil springs might.

Unless otherwise specifeied, Centry Covers are constructd for large end to travel and must be allowed to rotate freely

during operation.

Standard Centry covers are con-structed for over end installation. Special open wound Centry Covers are availlabe.

request, for instrallation, withourt dismantling of equipment.

Use the maeric or lmperial sections below.

Determine your size require-ments, then select your part unmber pages 72 and 73 for metric or page 73 for imperial.

■ METRIC

How to determine size requirements…

Cover
X Inside Diameter = shaft 0+8mm
if no flanges are used. X = shaft Ø + 4mm min.
W Extended Length = max. exposed length of shafts
V Comperessed Length = min. exposed length of shaft
Y Stroke = W-v
Z Outside Diameter = max.allowable area
Tolerances :” X” ± 1mm, “Z” ± 2mm

Flanges(required for use over-vertical shafts)
A = X – 4mm
B = V x .75
C = Z
D = Z + 5mm
E = Z + 12mm
F = X – 5mm

■ IMPERIAL

How to determine size requirements…

Cover
X Inside Diameter= shaft + 0.250

if no flanges are used. X = shaft Ø + 4mm min.
W Extended Length = max. exposed length of shaft
V Comperessed Length = min. exposed length of shaft
Y Stroke = W-V
Z Outside Diameter= max.allowable area
Tolerances :”X”+ 94 – 000, ” Z”+ 000, – 125

Flanges (required for use over-vertical shafts)
A = X – .125
B = V x .75
C = Z
D = Z + .125
E = Z + .375
F = X – .188