Whittet Higgins PP-52 Lockplate
- d 5.287″
- D 6.037″
- s 0.143″
Genuine Whittet-Higgins product, Whittet-Higgins
- Regular price
- $93.75
- Sale price
- $93.75
- Regular price
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Quantity pricingApplied at checkout
- 20–49 5% off$89.06 ea
- 50–99 8% off$86.25 ea
- 100–199 15% off$79.69 ea
- 200–499 18% off$76.88 ea
- 500+ 25% off$70.31 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 PP-52
$93.75
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 PP-52 Lockplate
The Whittet-Higgins PP-52 is a light-duty PP series bearing locking plate (lockplate) built to ANSI/ABMA 8.2-1999. It ships with the required 5/8 in hex-head 5/16-18 screw(s) and locking wire to secure and lock a matching N-000 series small-profile locknut against loosening from vibration, shock, and torque. Made of carbon steel for limited-space, lighter axial-loading applications, with a maximum operating temperature of 300 deg F.
Key features
- Light-duty bearing locking plate (lockplate) of the Whittet-Higgins PP series
- Meets and exceeds ANSI / ABMA 8.2-1999 specifications
- Maximum plate width (thickness) of 0.143 in
- Supplied with 5/8 in hex-head 5/16-18 screw(s) for installation
- Includes locking wire: 1/16 in diameter x 11 in length
- Matches N-048 and larger N-000 series small-profile locknuts
- Carbon steel construction; max operating temperature 300 deg F
- No special tools required; effective on soft and hardened shafts
- Manufactured in USA and RoHS compliant
Specifications
Whittet-Higgins PP-52 dimensions & specifications
- PDFPP-52 part print (opens in a new tab)
- STEP3D CAD model (opens in a new tab)
- PDFPP series spec sheet (opens in a new tab)
Files from Whittet-Higgins. They open in a new tab.
- Type
- Lockplate
- Inside diameter d
- 5.287 in (134.29 mm)
- Outside diameter (max.) D
- 6.037 in (153.34 mm)
- Thickness (max.) s
- 0.143 in (3.63 mm)
- Hex head bolt
- 5/16-18
- Material
- Carbon steel
- Country of origin
- USA
- Series
- Lockplate PP series (light duty)
- Standard
- ANSI/ABMA 8.2-1999 meets and exceeds
- Weight
- 0.22 lb
- Brand
- Whittet-Higgins
- Part number
- PP-52 also written PP52
- UPC / EAN
- 751968585206
Part number explained
What every part of PP-52 means
- PP
- Lockplate, Lockplate PP series (light duty)
- 52
- Size 52: 5.287″ bore
Catalogs & documents
Whittet-Higgins PP-52 catalogs & documents
Official catalogs and data from the manufacturer. They open as PDFs in a new tab.
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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
PP-52 questions & answers
What size is the Whittet-Higgins PP-52?
The Whittet-Higgins PP-52 is a lockplate. Inside diameter: 5.287 in (134.29 mm). Outside diameter: 6.037 in (153.34 mm). Thickness: 0.143 in (3.63 mm). These are Whittet-Higgins' maximum sizes from its spec sheet.
What temperature can the PP-52 take?
Whittet-Higgins rates the Lockplate PP series (light duty) for up to 300 °F (149 °C).
What is the PP-52 made of?
Lockwasher: carbon steel.
Is there a drawing or CAD model of the PP-52?
Yes. Whittet-Higgins publishes a part print (PDF) and a 3D CAD model (STEP) for the PP-52. The drawing on this page is made from the same catalog dimensions.
How do I install the PP-52?
Follow Whittet-Higgins' assembly instructions for this part (PDF).
Is this a genuine Whittet-Higgins lockplate?
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 PP-52 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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