Whittet higgins TLM-15 Tangentlok Tangential Locking Retaining Nut
- T M75 × 2
- D 98.6 mm
- B 15.4 mm
Genuine Whittet-Higgins product, Whittet-Higgins
- Regular price
- $315.68
- Sale price
- $315.68
- Regular price
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Quantity pricingApplied at checkout
- 20–49 5% off$299.90 ea
- 50–99 8% off$290.43 ea
- 100–199 15% off$268.33 ea
- 200–499 18% off$258.86 ea
- 500+ 25% off$236.76 ea
Same-day shipping
Order by 3 PM ET for same-day shipping
Free shipping on orders over $100
Use code at checkout.
Whittet-Higgins TLM-15
$315.68
Why Apollo USA
Bearing locknuts and retaining parts from Apollo Industries, Oxford, Michigan
Apollo Industries supplies bearings, locknuts, lockwashers and maintenance tools to businesses across the US, with real people on the phone when you need a part matched.
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Same-day shipping
Order by 3 PM EST for same-day shipping.
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Free shipping over $100
All orders over $100 ship free by ground with code FREESHIP.
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90-day returns
Hassle-free returns on unused items within 90 days.
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Price match
Show us a competitor's advertised price on the same item and we will match it.
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Expert support
Support staff available by phone, web chat or email.
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Need tax exemption or quantity pricing?
We offer special rates for businesses and bulk orders.
Talk to a parts specialist
2695 Lake George RdOxford, MI 48370
Overview
Whittet-Higgins TLM-15 Locknut
The Whittet-Higgins TANGENTLOK TLM series is a metric, mechanically self-locking shaft locknut with a base threaded nut in carbon steel and hardened alloy fasteners. Three hex socket-head cap screws are seated tangentially (X-axis) around the outside diameter; torquing them in a bolt-circle pattern deforms the relieved inner section of the nut to deliver uniform 360-degree thread clamping to the center of the shaft.
This self-locking action prevents assemblies from loosening due to vibration, shock and torque without damaging the shaft threads or requiring a cut keyway, while providing infinite adjustment and preloading. The balanced design suits high-speed assemblies, installs faster than a traditional locknut and lockwasher, and the series meets and exceeds ISO 2982-2:2013(E) with a maximum operating temperature of 300 degrees F. Manufactured in the USA and RoHS compliant.
Key features
- Base threaded nut in carbon steel with hardened alloy fasteners
- Mechanically self-locking; prevents loosening from vibration, shock and torque
- Three tangential (X-axis) socket-head cap screws provide uniform 360-degree thread clamping to shaft center
- Tangential access for locking and adjustment; eliminates the need to cut or repair a shaft keyway
- Infinite adjustment and preloading capability; does not damage shaft threads when secured
- Meets and exceeds ISO 2982-2:2013(E)
- Maximum operating temperature 300 degrees F
- Manufactured in USA and RoHS compliant
- Metric threads from M10 x 0.75 through M75 x 2.0
Specifications
Whittet-Higgins TLM-15 dimensions & specifications
- PDFTLM-15 part print (opens in a new tab)
- STEP3D CAD model (opens in a new tab)
- PDFTLM series spec sheet (opens in a new tab)
Files from Whittet-Higgins. They open in a new tab.
- Type
- Tangentlok locknut
- Thread T
- M75 × 2 (pitch 2 mm)
- Outside diameter (max.) D
- 98.6 mm (3.882 in)
- Face diameter (max.) F
- 90.6 mm (3.567 in)
- Width (max.) B
- 15.4 mm (0.606 in)
- Theoretical axial load
- 368 kN (82,730 lbf)
- Hex set screw
- 5/16-18
- Suggested screw torque
- 104 in-lb (11.8 N·m)
- Material
- Carbon Steel (alloy fastener)
- Country of origin
- USA
- Series
- Tangentlok TLM series (metric)
- Standard
- ISO 2982-2:2013 meets and exceeds
- Weight
- 0.74 lb
- Brand
- Whittet-Higgins
- Part number
- TLM-15 also written TLM15
- UPC / EAN
- 751968171508
Use it with
Parts and tools for your TLM-15
What Whittet-Higgins pairs with the TLM-15. Tick what you need and add it with one click.
Same size, other versions
Other versions of the TLM-15
The same size in other Whittet-Higgins series: left-hand thread, stainless steel, high strength, precision or self-locking designs.
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Whittet-Higgins
BLM-15Whittet Higgins BLM-15 Bearhug Retaining Nut M75 x 2,0
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BML-15Whittet Higgins BML-15 Bearhug Left Handed Retaining Nut
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$137.39
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Whittet-Higgins
BMM-15Whittet Higgins BMM-15 Bearhug Retaining Nut Hardened Alloy - High Strength
Bearhug BMM series (high strength)
$160.50
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Whittet-Higgins
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$31.61
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Whittet-Higgins
KML-15Whittet Higgins KML-15 Locknut- Lefthand Metric Threads
Locknut KML series (left-handed) · left-hand thread
$285.01
In stock
Part number explained
What every part of TLM-15 means
- TLM
- Tangentlok locknut, Tangentlok TLM series (metric)
- 15
- Size 15: M75 × 2 thread
Catalogs & documents
Whittet-Higgins TLM-15 catalogs & documents
Official catalogs and data from the manufacturer. They open as PDFs in a new tab.
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Product document
Tangentlok – TLM Series (Metric) Catalog (opens in a new tab)
PDF · AllPagesDrop pages
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Catalog
Whittet-Higgins Handbook of Engineering & Design (rev. 2018) (opens in a new tab)
PDF · 93.0 MB · English
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Mounting
Whittet-Higgins Assembly Instructions (opens in a new tab)
PDF · 0.2 MB · English
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Safety
Whittet-Higgins Standard Statements: Prop 65, RoHS3, REACH (opens in a new tab)
PDF · 0.1 MB · English
About the brand
About Whittet-Higgins
Bearing locknuts, lockwashers and retaining devices from Rhode Island since 1914.
Henry Whittet and John Higgins founded the Whittet-Higgins Manufacturing Company in 1914 in the basement of a mill on Congress Avenue in Providence, Rhode Island, making super-precision bearing retaining components and machined parts for local machine builders such as Brown & Sharpe.
In 1967 the company was sold to a young mechanical engineer, and in 1969 it moved to 33 Higginson Avenue in Central Falls, Rhode Island, where it still makes its products. Its first line of 66 locknuts and lockwashers has grown to more than 4,300 standard parts, made on robotic CNC systems.
Besides the standard N/AN and KM locknuts with W and MB lockwashers, Whittet-Higgins makes its own self-locking designs: Bearhug prevailing-torque locknuts, Bearlok, Shoelok and Tangentlok clamping locknuts, clampnuts and splitnuts, plus adapter sets, clamp collars and installation tools. The company is family owned and operated.
Genuine Whittet-Higgins product from an authorized retailer
Founded
1914
Headquarters
Central Falls, Rhode Island, USA
Standard parts
More than 4,300
Made in
Central Falls, Rhode Island
Known for
- Bearing locknuts and lockwashers, inch and metric
- Bearhug self-locking locknuts
- Clampnuts, splitnuts and clamp collars
- Adapter sets and installation tools
Apollo Industries is an authorized Whittet-Higgins retailer. All Whittet-Higgins trademarks and product names are the property of their respective owners.
FAQ
TLM-15 questions & answers
What size is the Whittet-Higgins TLM-15?
The Whittet-Higgins TLM-15 is a Tangentlok locknut. Thread: M75 × 2 (pitch 2 mm). Outside diameter: 98.6 mm (3.882 in). Face diameter: 90.6 mm (3.567 in). Width: 15.4 mm (0.606 in). These are Whittet-Higgins' maximum sizes from its spec sheet.
What thread does the TLM-15 fit?
The Whittet-Higgins TLM-15 fits a M75 × 2 right-hand shaft thread (pitch 2 mm).
Does the TLM-15 need a lockwasher?
No. The Whittet-Higgins TLM-15 locks itself: tangential set screws clamp the nut onto the shaft thread. It needs no lockwasher and no keyway in the shaft.
What temperature can the TLM-15 take?
Whittet-Higgins rates the Tangentlok TLM series (metric) for up to 300 °F (149 °C).
What is the TLM-15 made of?
Base threaded nut: carbon steel; Fasteners: hardened alloy.
Is there a drawing or CAD model of the TLM-15?
Yes. Whittet-Higgins publishes a part print (PDF) and a 3D CAD model (STEP) for the TLM-15. The drawing on this page is made from the same catalog dimensions.
How do I install the TLM-15?
Follow Whittet-Higgins' assembly instructions for this part (PDF).
Is this a genuine Whittet-Higgins locknut?
Yes. Apollo Industries is an authorized Whittet-Higgins retailer, and every Whittet-Higgins part we sell is genuine, made by Whittet-Higgins in Central Falls, Rhode Island, USA.
Do you ship the TLM-15 the same day?
In-stock orders placed by 3 PM EST ship the same day. All orders over $100 ship free by ground with code FREESHIP.
Can I get quantity pricing or buy tax-exempt?
Yes. Apollo offers special rates for businesses and bulk orders. Use Request a quote on this page or call (248) 429-9073.
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