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PRODUCT · Locking Assemblies

R14 Keyless Locking Device

R14 keyless locking device: tightening the locking screws presses the inner and outer taper rings together, expanding radially against shaft and hub — zero-backlash bidirectional torque, self-centering, repeatedly removable; similar to JB/T 7934 type Z7B. Recommended fits: shaft h8 / hub H8. The table lists dimensions, transmissible torque and axial force, contact pressure and DIN 912-12.9 locking screw sizes.

Last updated Reviewed by Luo Genwen, Production Plant Manager

R14 keyless locking device dimension diagram
R14 section and product photo · Φd / ΦD / L1 / L2 / L · recommended fits and marking example

Specifications · Selector

R14 keyless locking device specifications

Filter by the conditions below, or search and click a column header to sort; request a quote in one click. Dimensions per catalogue.

Complete size table · 54 sizes (static version for printing and full-text search)
R14 keyless locking device specifications — R14 dimensions and performance data (units in header)
Φd mmΦD mmΦdw mmL1 mmL2 mmL mmc(dw-d1) mmFt kNMt N·mP N/mm²Qty.SizeTS N·m
2450191419.523.00.01715.0162272.06M5x184.9
2450201419.523.00.01718.5200272.06M5x184.9
2450211419.523.00.01721.0238272.06M5x184.9
3060241621.525.00.01715.7285221.07M5x184.9
3060251621.525.00.01723.7323221.07M5x184.9
3060261621.525.00.01726.7361221.07M5x184.9
3672281823.527.50.03227.0418292.05M6x2011.8
3672301823.527.50.03238.0542292.05M6x2011.8
3672311823.527.50.03243.0599292.05M6x2011.8
4480322025.529.50.03244.0589301.07M6x2011.8
4480352025.529.50.03249.0741301.07M6x2011.8
4480362025.529.50.03254.0817301.07M6x2011.8
5090382227.531.50.03248.8893275.08M6x2511.8
5090402227.531.50.03258.81102275.08M6x2511.8
5090422227.531.50.03269.01311275.08M6x2511.8
55100422330.534.50.03248.01102239.08M6x2511.8
55100452330.534.50.03261.71444239.08M6x2511.8
55100482330.534.50.03277.01786239.08M6x2511.8
62110482330.534.50.04869.01758265.010M6x2511.8
62110502330.534.50.04880.92090265.010M6x2511.8
62110522330.534.50.04890.02280265.010M6x2511.8
68115502330.534.50.04871.21900242.010M6x2511.8
68115552330.534.50.04880.92375242.010M6x2511.8
68115602330.534.50.04895.72993242.010M6x2511.8
75138552532.537.80.04894.42375259.07M8x3029.4
75138602532.537.80.048111.03040259.07M8x3029.4
75138652532.537.80.048126.03753259.07M8x3029.4
80145602532.537.80.04899.33040243.07M8x3029.4
80145652532.537.80.048115.03705243.07M8x3029.4
80145702532.537.80.048130.04370243.07M8x3029.4
90155653039.044.30.048141.04513257.010M8x3529.4
90155703039.044.30.048160.05700257.010M8x3529.4
90155753039.044.30.048178.06888257.010M8x3529.4
100170703444.049.30.048163.06555245.012M8x3529.4
100170753444.049.30.048182.07125245.012M8x3529.4
100170803444.049.30.048202.08550245.012M8x3529.4
110185753950.056.40.048185.06840232.09M10x4057.8
110185803950.056.40.048207.08550232.09M10x4057.8
110185853950.056.40.048221.010260232.09M10x4057.8
125215854254.060.40.069240.010450253.012M10x4057.8
125215904254.060.40.069262.012350253.012M10x4057.8
125215954254.060.40.069285.014250253.012M10x4057.8
140230954660.568.00.069308.014345251.010M12x4598.0
1402301004660.568.00.069331.016720251.010M12x4598.0
1402301054660.568.00.069357.019095251.010M12x4598.0
1552651055064.572.00.069366.020900250.012M12x5098.0
1552651105064.572.00.069392.023750250.012M12x5098.0
1552651155064.572.00.069417.026600250.012M12x5098.0
1652901155671.081.00.069513.029450263.08M16x55245.0
1652901205671.081.00.069544.033250263.08M16x55245.0
1652901255671.081.00.069564.037050263.08M16x55245.0
1753001255671.081.00.079576.034200248.08M16x55250.0
1753001305671.081.00.079630.038950248.08M16x55250.0
1753001355671.081.00.079666.045000248.08M16x55250.0

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 · one-click quote · full range & tolerances per PDF catalogue. Download PDF catalogue ↗

FAQ

Common questions about this series

R14 Keyless Locking Device: what size range does the table cover?

The table lists 54 sizes: shaft diameters Ø24–Ø175 mm, hub bores Ø50–Ø300 mm, transmissible torque 0.162–45 kN·m at the specified screw tightening torque. Intermediate or larger sizes are machined from solid to your shaft and hub dimensions.

R14 Keyless Locking Device: what is it and when should I use it?

R14 keyless locking device: tightening the locking screws presses the inner and outer taper rings together, expanding radially against shaft and hub — zero-backlash bidirectional torque, self-centering, repeatedly removable; similar to JB/T 7934 type Z7B. Recommended fits: shaft h8 / hub H8. The table lists dimensions, transmissible torque and axial force, contact pressure and DIN 912-12.9 locking screw sizes. All R-series keyless locking devices work the same way — tightening the screws presses tapered rings together, clamping shaft and hub with zero backlash, self-centring and repeatable removal — and the types differ in construction: outer diameter for a given shaft, overall length, whether the hub needs a shoulder or a flange, and the force the screws must be tightened to. Compare the Ø d / Ø D / L columns and the transmissible torque Mt on this page against your shaft and hub, and pick the smallest type that fits.

R14 Keyless Locking Device: 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.

R14 Keyless Locking Device: what do I need to send to get a quote?

Send: shaft diameter and tolerance, hub bore and outside diameter, available hub length, torque to be transmitted (and any axial load), speed, whether the hub can have a shoulder or flange, and quantity. We will confirm the type and size and check surface pressure against your hub material.

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