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ZERO-MAX Europe
Overhung Load Adaptor (OHLA)

Overhung Load Adaptor (OHLA)

Product catalog summary

Overview: Zero-Max specializes in Overhung Load Technology, offering a range of Overhung Load Adaptors (OHLAs) from SAE 'A' to 'F' mounts. These adaptors are designed to prevent premature motor or pump failure due to overhung loads and provide a solid mounting surface.

Specifications: OHLAs are available in models from Model 200 SAE 'A' to Model 1500 SAE 'F', featuring cast iron housings, 130,000 PSI stress-proof steel shafts, and various bearing types. They can be face- or foot-mounted, with custom options available.

Benefits: Key benefits include eliminating motor or pump failure, preventing hydraulic fluid contamination, allowing motor removal without disturbing other components, and sealing out contaminants.

Technical Features: The adaptors support heavy radial and axial loads, reducing downtime and maintenance costs. They are equipped with deep groove ball bearings and offer different input and output shaft configurations.

Series Details: Each series, such as the 210, 210F, 212k, 215, and 300F, has specific input and output specifications, including pilot diameters, bore depths, and keyway dimensions. The standard lubrication method is grease, with optional methods available upon consultation.

Ordering Information: Models are identified by part numbers, with options for standard or deep pilot depths. The adaptors are designed for horizontal shaft orientation, with a maximum speed of 3800 RPM for most models.

Series Overview: The document details various OHLA® Series models, including Series 312, 315, 350, 410, 410F, and 412k, designed for mounting motors or pumps and equipped to support heavy radial and axial loads.

Common Features: All models support heavy radial and axial loads, reducing maintenance costs and downtime. Standard lubrication is grease, with optional methods available. Housing material is consistently cast iron across models.

Additional Series: The document also covers Series 415, 512, 515, 600F, 615, and 650, designed for mounting motors or pumps with different bearing types to support heavy loads.

General Features: All series provide a sturdy mounting base for motors or pumps and protect shaft seals from contaminants. Recommended grease type is NLGI #2 with a lithium base.

Specifications: Recommended grease type is NLGI #2 with a lithium base. Standard mounting orientation is shaft horizontal. Maximum speed varies by series.

Procedures and Recommendations: For non-horizontal mounting orientations, consult the factory. Optional lubrication methods are available.

Series Features and Enhancements: Various series offer features like heavy-duty tapered roller bearings and spherical roller bearings, supporting heavy loads and reducing downtime.

Technical Information: Input and output specifications include pilot diameters, shaft diameters, keyway dimensions, and seal types. Detailed dimensions and mounting specifications are provided for each series model.

Customization and Modifications: Zero-Max offers customizations such as drilled-and-tapped shaft ends and special seals. Modifications to standard dimensions are available.

Warranty: Zero-Max provides a 12-month warranty from the date of shipment, covering defects in material or workmanship, excluding damages due to misuse or improper installation.

Warranty and Legal Considerations: The warranty replaces all other warranties, specifying terms as the sole remedy for the buyer or user. Legal proceedings must be initiated within 18 months of purchase.

Product Overview: The document also covers other Zero-Max products like ServoClass® Couplings, Schmidt Offset Couplings, Overload Safety Couplings, Keyless Shaft Locking Devices, Adjustable Speed Drives, Crown Gear Drives, Roh’Lix® Linear Actuators, CD® Couplings, and Control-Flex Couplings.

Trademarks: Zero-Max®, CD®, ETP®, ServoClass®, Torq-Tender®, Posi-Lok®, Roh’Lix®, and OHLA® are registered trademarks of Zero-Max, Inc.

Catalog excerpts

Overhung Load Adaptors

Open the catalog to page 1

Overhung Load Adaptors Zero-Max is a world-leading expert in Overhung Load Technology The first complete line of SAE “A” through SAE “F” mount OHLA Overhung Load Adaptors was designed by ZERO-MAX. We set the industry standard with the OHLA design. Today, we provide immediate shipment of standard models from stock. From the smallest Model 200 SAE “A” mount to the largest Model 1500 SAE “F” mount, OHLAs feature rugged housings of cast iron, shafts of 130,000 PSI stress proof steel, ball, tapered, or spherical roller bearings, many different shaft options and attractively painted housings. All models...

Open the catalog to page 2

Sealed input to Motor or Pump by O-Ring or Gasket Easy access lubrication ports Rugged Cast Iron Housing Wide Temperature Range Splined or Keyed Inputs Available Note: SAE J744 spline is standard (flat-root, side fit, 30° PA, class 5) Input SAE Piloting Diameter and Bolt Pattern Robust Bearings for Loads/Speeds of Application Sealed Output Shaft SAE D 2-bolt or 4-bolt mounting Input Pilot Diameter 6.000" Pages 46-47 SAE A 2-bolt mounting Input Pilot Diameter 3.250" Pages 4-19 SAE E 4-bolt mounting Input Pilot Diameter 6.500" Pages 48-49 Non-SAE 4-bolt mounting Input Pilot Diameter 1.750" Pages...

Open the catalog to page 3

A 2-bolt mounting • Deep Groove Ball Bearings • May be either Face-mounted or Foot-mounted • Provides a sturdy mounting base for the motor or pump • Supports heavy radial and axial loads protecting the hydraulic motor or pump • Reduces downtime and maintenance costs • Protects pump or motor shaft seal from harmful contaminants Input Standard Input Pilot Diameter Input Pilot Depth (standard housing) 0.125" (deep pilot option) 0.250" Input Pilot Sealing Method Buna-N Gasket Input Bore Diameter and Depth 1" keyed - bore depth is 2.31" 5/8" keyed - bore depth is 2.31" 3/4" keyed - bore depth is 2.81"...

Open the catalog to page 4

Technical Information Side View 2.75 2.75 (Standard (Standard Pilot) Pilot) 2.88 2.88 1.50 (Deep Pilot) (Deep Pilot) 0.125 (Standard Pilot Depth) 0.250 (Deep Pilot Depth) Standard 210 Series Models 2.13 3.250 Pilot Ø 0.125 (Standard 0.125 (Standard Pilot Depth) Pilot Depth) Diameter 0.250 (Deep 0.250 Pilot (Deep Depth) Pilot Depth) 1/4 x 1/8 2.75 (Standard Pilot) 3.2502.88 3.250 PilotPilot) Pilot (Deep Diameter Diameter Bottom View (2) 0.531 Diameter Thru Holes (2) 0.531 Thru Diameter (2) 0.531 Diameter HolesThru Holes 3.250 3.250 Pilot Diameter Pilot Diameter Part Number Output Shaft - Keyway...

Open the catalog to page 5

A 2-bolt mounting • Deep Groove Ball Bearings • May be either Face-mounted or Foot-mounted • Provides a sturdy mounting base for the motor or pump • Supports heavy radial and axial loads protecting the hydraulic motor or pump • Reduces downtime and maintenance costs • Protects pump or motor shaft seal from harmful contaminants Input Standard Input Pilot Diameter Input Pilot Depth (standard housing) 0.125" (deep pilot option) 0.250" Input Pilot Sealing Method Buna-N Gasket Input Bore Diameter and Depth Output Shaft Diameter Output Shaft Keyway 1/4" x 1/8" keyway entire length of bore Output Shaft...

Open the catalog to page 6

Technical Information Side View 2.75 2.75 (Standard Pilot) Pilot) (Standard 2.88 2.88 (Deep Pilot) Pilot) (Deep 3.250 3.250 2.75 (Standard Pilot) Pilot Pilot 2.88 Diameter Diameter (Deep Pilot) (2) 0.531 0.531 Diameter Diameter Thru Thru Holes Holes (2) 3.250 3.250 Pilot Diameter Diameter Pilot 0.75 0.75 Bottom View How to Order 0.125 (Standard Pilot Depth) 0.250 (Deep Pilot Depth) 0.125 (Standard (Standard Pilot Pilot Depth) Depth) 0.125 Ø1.000 0.250 (Deep (Deep Pilot Pilot Depth) Depth) 0.250 (2) 0.531 Diameter Thru Holes Part Number Output Shaft - Keyway Input Bore - Keyway Note: P art numbers...

Open the catalog to page 7

A 2-bolt mounting • Deep Groove Ball Bearings • May be either Face-mounted or Foot-mounted • Provides a sturdy mounting base for the motor or pump • Supports heavy radial and axial loads protecting the hydraulic motor or pump • Reduces downtime and maintenance costs • Protects pump or motor shaft seal from harmful contaminants Input Standard Input Pilot Diameter Input Pilot Depth (standard housing) 0.125" (deep pilot option) 0.250" Input Pilot Sealing Method Buna-N Gasket Input Bore Diameter and Depth 1" keyed - bore depth is 2.31" Output Shaft Diameter Output Shaft Keyway Output Shaft Keyway...

Open the catalog to page 8

Technical Information Side View 2.75 2.75 (Standard (Standard Pilot) Pilot) 1.50 2.88 2.88 (Deep Pilot) (Deep Pilot) 2.75 3.250 3.250 (Standard Pilot) Pilot Pilot 2.88 Diameter Diameter (Deep Pilot) (2) 0.531 Diameter (2) 0.531 Diameter Thru HolesThru Holes 3.250 Pilot 0.125 (Standard Pilot Depth) 0.125 (Standard Pilot Depth) Diameter 0.250 (Deep Pilot Depth) 0.250 (Deep Pilot Depth) 2.125 3.250 3.250 Pilot Diameter Pilot Diameter (2) 0.531 Diameter Thru Holes Bottom View 0.125 (Standard Pilot Depth) 0.250 (Deep Pilot Depth) Standard 212k Series Models Part Number Output Shaft - Keyway Input...

Open the catalog to page 9

A 2-bolt mounting • Deep Groove Ball Bearings • May be either Face-mounted or Foot-mounted • Provides a sturdy mounting base for the motor or pump • Supports heavy radial and axial loads protecting the hydraulic motor or pump • Reduces downtime and maintenance costs • Protects pump or motor shaft seal from harmful contaminants Input Standard Input Pilot Diameter Input Pilot Depth (standard housing) 0.125" (deep pilot option) 0.250" Input Pilot Sealing Method Buna-N Gasket Input Bore Diameter and Depth 1" keyed - bore depth is 2.31" 3/4" keyed - bore depth is 2.81" Output Shaft Diameter Output...

Open the catalog to page 10

Technical Information Side View 2.75 2.75 (Standard (Standard Pilot) Pilot) 2.88 2.88 2.75 (Deep Pilot) (Deep Pilot) (Standard Pilot) 2.88 (Deep Pilot) 3.250 3.250 Pilot Pilot Diameter Diameter 3.250 Pilot Diameter 3/8 x 3/1 Kwy 0.125 (Standard Pilot Depth) 0.125 (Standard Pilot Depth) 0.250Pilot (Deep Pilot Depth) 0.250 (Deep Depth) (2) 0.531(2) Diameter 0.531 Diameter Thru Holes Thru Holes 0.125 (Standard Pilot Depth) 0.250 (Deep Pilot Depth) (2) 0.531 Diameter Thru Holes 3.250 3.250 BottomPilot View Diameter Pilot Diameter 3.250 Pilot Diameter Standard 215 Series Models Part Number Output...

Open the catalog to page 11

Overhung Load Adaptor (OHLA)

Overhung Load Adaptor (OHLA)

Catalog excerpts

All ZERO-MAX Europe catalogs and technical brochures