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ZST-GL Assembly-Only Gauges

ZST-GL Assembly-Only Gauges
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Product Description

This is a dedicated gauge for assembling hardened tooth-polished helical racks manufactured by SCHNEEBERGER.

Drawing

ZST-GL assembly dedicated gauge drawing

RL
SW: Saw blade finish

Product Specifications

Common Specifications

Accuracy ClassKHK R 001 Class 2
Gear reference cross sectionNormal
ProfileStandard Gear
Normal pressure angle20°
Helix angle and direction19° 31' 41" Left-hand
MaterialsS45C
Heat Treatment
Tooth Surface Hardness(95 HRB or less)
Surface TreatmentBlack oxide coating

Standard table

ZST-GL assembly dedicated gauge standard table

Usage examples

How to connect racks

ZST-GL assembly dedicated gauge usage examples

[Note]Please use the ZST-GL assembly dedicated gauge for the mating rack. 

Cautions/prohibitions

Precautions for product characteristics

(1) This product is an assembly dedicated gauge for ZST / ZSTD / SRHEF helical racks.

Precautions for assembly

(1) The ZST / ZSTD gear grinder rack is designed so that the backlash in the table will be made if it is assembled within the assembly distance (tolerance H7 to H8) of the ZSTP mating pinion dimension table. Please assemble to make the assembly distance always constant.

ZST-GL assembly dedicated gauge precautions 1

(2) ZST / ZSTD gear grinder rack has a finished pitch of -0.05 to -0.4 mm at the flange. When using by connecting, if you assemble the flanges in close contact each other, the pitch of the connecting part will become smaller and it may cause troubles. So please see "how to connect racks" shown above for assembling correctly.

(3) ZST / ZSTD gear grinder rack is a high-precision product with grinding on the mounting surface. If the accuracy of the base surface on which the rack is mounted is poor, the product performance will be affected. Therefore, please refer to the figure below for setting it on the mounting base surface with high accuracy of flatness and perpendicularity (recommended within 10 µm). Also, if the rack is not sufficiently mounted on the mounting base surface, the rack may move during startup and cause unexpected troubles. Please use the dowel together so that the load is not applied as much as possible in the shear direction of the mounting screw.

ZST-GL assembly dedicated gauge precautions 2
Part Number
ZST1.5-GL
ZST2-GL
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipRoHSModule (M) / Circular Pitch (P) Full Length
(mm)
Number of Effective Teeth
(teeth)
Length (nominal) Tooth Width
(mm)
Both Ends Machined Height
(mm)
Accuracy Grade
(KHK standard)

₹ 1,794.82

1 Piece(s) 6 Day(s) or more -1.55995917Presence17KHK R 001- Class 2

₹ 2,904.98

1 Piece(s) 6 Day(s) or more 1026676625-25KHK R 001 - Class 2

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Basic Information

Shape Rack Tooth Type Helical Material Steel
Surface Treatment Black oxide finish Heat Treatment No Ground Tooth Presence
Twisting Direction L Material S45C