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PRODUCT · Linear Motion

Milled straight rack

Straight racks · milled teeth · 20° pressure angle; simple and cost-effective (about Grade 7), for medium-accuracy linear motion in automation and general machinery.

Last updated Reviewed by Luo Genwen, Production Plant Manager

Milled straight rack dimension diagram
Rack dimension callouts · L / L3 / A / h / hk / h0 / d1 / d2 / d3 etc.

Specifications · Selector

Milled straight rack selector

All 34 standard sizes from the catalogue PDF. Search by code or filter by module and length. All dimensions in mm.

Straight rack · milled · 20° pressure angle · simple, cost-effective (approx. grade 7) · module 1–10 · standard length 500 / 1000 mm (butt-jointable) · for general automation & machinery
Milled straight rack selector

Complete size table · 34 sizes (static version for printing and full-text search)
Milled straight rack selector (34)
CodeModule
M
Length
L
Teeth
z
bhkh0AL3Holes
n
hd1d2tA1L2d3Pitch err
/300mm
11 22 010 0501499.5115915151462.44124.88464.58529441.55.70.022
11 22 010 1001999.0331815151462.44124.88864.585299415.70.022
11 22 015 0501.5499.51106171715.562.44124.884769.5729441.55.70.022
11 22 015 1001.5999.03212171715.562.44124.888769.57299415.70.022
11 22 020 0502502.658024242262.83125.66487.511.5731.3440.15.70.044
11 22 020 10021005.3116024242262.83125.66887.511.5731.3942.75.70.044
11 22 030 0503508.945429292663.62127.23491015934.4440.17.70.046
11 22 030 10031017.8810829292663.62127.23891015934.4949.17.70.046
11 22 040 0504502.654039393562.83125.664121015937.5427.77.70.048
11 22 040 10041005.318039393562.83125.668121015937.5930.37.70.048
11 22 050 0505502.653249393462.83125.6641214201330.1442.411.70.05
11 22 050 10051005.316449393462.83125.6681214201330.194511.70.05
11 22 060 0506508.942759494363.62127.2341618261731.4446.115.70.055
11 22 060 10061017.885459494363.62127.2381618261731.495515.70.055
11 22 080 0508502.652079797162.83125.6642522332126.6449.519.70.06
11 22 080 10081005.314079797162.83125.6682522332126.695219.70.06
11 22 100 100101005.313299998962.83125.66832334832125.7753.9619.70.065
21 22 010 0501499.5115915151462.44124.88464.58529441.55.70.022
21 22 010 1001999.0331815151462.44124.88864.585299415.70.022
21 22 015 0501.5499.51106171715.562.44124.884769.5729441.55.70.022
21 22 015 1001.5999.03212171715.562.44124.888769.57299415.70.022
21 22 020 0502502.658024242262.83125.66487.511.5731.3440.15.70.044
21 22 020 10021005.3116024242262.83125.66887.511.5731.3942.75.70.044
21 22 030 0503508.945429292663.62127.23491015934.4440.17.70.046
21 22 030 10031017.8810829292663.62127.23891015934.4949.17.70.046
21 22 040 0504502.654039393562.83125.664121015937.5427.77.70.048
21 22 040 10041005.318039393562.83125.668121015937.5930.37.70.048
21 22 050 0505502.653249393462.83125.6641214201330.1442.411.70.05
21 22 050 10051005.316449393462.83125.6681214201330.194511.70.05
21 22 060 0506508.942759494363.62127.2341618261731.4446.115.70.055
21 22 060 10061017.885459494363.62127.2381618261731.495515.70.055
21 22 080 0508502.652079797162.83125.6642522332126.6449.519.70.06
21 22 080 10081005.314079797162.83125.6682522332126.695219.70.06
21 22 100 100101005.313299998962.83125.66832334832125.7753.9619.70.065

Static copy of the selector data for reference and printing; use the interactive selector above to filter, sort and request a quote. All dimensions in mm; full range and tolerances per the PDF catalogue.

Click a column header to sort. Racks butt-joint to any length. Dimensions in mm. Source: Wolfer gear-rack catalogue. Download PDF catalogue ↗

FAQ

Common questions about this series

Milled straight rack: what size range does the table cover?

The table lists 34 standard racks: module 1–10, standard lengths 500 / 503 / 509 / 999 / 1005 / 1018 mm (20–318 teeth per piece). Racks can be butt-jointed end to end for longer travel; other modules, lengths and mounting-hole patterns are made to drawing.

Milled straight rack: what is it and when should I use it?

Straight racks · milled teeth · 20° pressure angle; simple and cost-effective (about Grade 7), for medium-accuracy linear motion in automation and general machinery. Choose ground racks (Grade 6, induction hardened HRC 50–55) for laser gantries, CNC axes and any drive where positioning accuracy and long life matter; milled racks (about Grade 7) are the economical option for medium-accuracy automation and conveying. Helical teeth run smoother at speeds above roughly 60 m/min and carry about 30% more load per face width, at the cost of axial thrust on the pinion bearings.

Milled straight rack: can I order a size that is not in the table, or just one piece?

Yes. Everything on this page is made to drawing, and the table is only the standard-size subset of the catalogue. Minimum order quantity is one piece — we routinely make single replacement parts for OEMs whose original supplier has discontinued the item. Send a DWG, STEP or PDF drawing (or a sample part): you get a formal quotation within 24 hours after the information is complete, and the first article ships within 30 days of drawing approval, with inspection records.

Milled straight rack: what do I need to send to get a quote?

Send the drawing or: module, straight or helical (with helix angle), length and number of teeth, cross-section (height × width), mounting-hole pattern, accuracy class and hardening requirement, whether ends must be matched for jointing, and quantity. Tell us the pinion you use so pitch and profile match.

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