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ZERO-MAX
Overhung Load Adaptors

Overhung Load Adaptors

Product catalog summary

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

Specifications: OHLAs are available from Model 200 SAE 'A' to Model 1500 SAE 'F', featuring cast iron housings and shafts made of 130,000 PSI stress-proof steel. They support face or foot mounting and offer custom options.

Benefits: The adaptors eliminate failures caused by overhung loads, prevent contamination, facilitate motor servicing, and seal out contaminants.

Technical Features: Features include SAE A 2-bolt mounting, deep groove ball bearings, and robust construction to handle heavy radial and axial loads, reducing downtime and maintenance costs.

Series Data: Each series, such as 210, 210F, 212k, 215, and 300F, has specific input and output specifications, including pilot diameters and keyway dimensions. They include double-lip seals and standard grease lubrication.

Ordering Information: Models are available with standard and deep pilot options, with detailed part numbers indicating specific configurations.

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 supporting heavy loads.

Series Specifications:

Series 312: SAE A 2-bolt mounting, 3.250" input pilot diameter, 1-1/4" output shaft diameter, maximum speed 3100 RPM.
Series 315: Similar to 312 with 1-1/2" output shaft diameter.
Series 350: SAE A 2-bolt or 4-bolt mounting, 1-1/2" output shaft diameter, maximum speed 3300 RPM.
Series 410: Non-SAE 4-bolt mounting, 1.750" input pilot diameter, 1" output shaft diameter, maximum speed 3800 RPM.
Series 410F: Similar to 410 with through-bore output shaft.
Series 412k: Non-SAE 4-bolt mounting, 1-1/4" output shaft diameter, maximum speed 3800 RPM.

Common Features: All models feature a sturdy mounting base, support for heavy loads, and protection for shaft seals. Standard lubrication is grease, with optional methods available.

Additional Series: The document also covers Series 415, 512, 515, 600F, 615, and 650, each designed for specific mounting and load requirements.

General Features: All series provide a sturdy mounting base and protect shaft seals. Recommended grease is NLGI #2 with a lithium base.

Specifications: Recommended grease is NLGI #2, lithium base. Maximum speed varies by series, with specific housing materials and unit weights.

Procedures and Enhancements: Extra-Duty Series Enhancements include extended housing, spherical roller bearings, and dual NPT grease zerks.

Technical Information: Input and output specifications vary by series, with different bearing types and grease capacities.

Recommendations: Consult the factory for non-standard mounting orientations and use recommended grease types for optimal performance.

Special Features and Modifications: Options for custom modifications include drilled-and-tapped shaft ends and pre-greased units.

Performance and Sizing: Zero-Max offers engineering analysis for application-specific requirements, including bearing lifetime and lubrication recommendations.

Warranty: Zero-Max provides a 12-month warranty covering defects in material or workmanship, with exclusions for misuse and improper installation.

Warranty and Legal Terms: The warranty is exclusive and replaces all other warranties. Legal proceedings must be initiated within 18 months of purchase.

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

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

Features • SAE 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 210 Series Data Input Standard 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...

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) 2.75 (Standard Pilot) 3.2502.88 3.250 Pilot Pilot (Deep Pilot) Diameter Diameter 2.13 3.250 Pilot Ø1. 0.125 (Standard (Standard Pilot Depth) 0.125 Pilot Depth) Diameter 0.250 (Deep Pilot Depth) Depth) 0.250 (Deep Pilot 1/4 x 1/8 K (2) 0.531 Diameter Thru Holes (2) 0.531 Diameter Thru Holes 3.250 3.250 Pilot Pilot Diameter Diameter Bottom View (2) 0.531 Diameter Thru Holes 3.250 Pilot Diameter 0.125 (Standard Pilot Depth) 0.250 (Deep Pilot Depth) Standard 210 Series Models 0.44...

Open the catalog to page 5

Features • SAE 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 210F Series Data Input Standard 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...

Open the catalog to page 6

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

Open the catalog to page 7

Features • SAE 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 212k Series Data Input Standard 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...

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 Diameter Thru Holes (2) 0.531 Thru Holes 3.250 Pilot 0.125 Pilot Depth) 0.125 (Standard (Standard Pilot Depth) Diameter (Deep Pilot Depth) Depth) 0.250 (Deep Pilot 0.250 2.125 3.250 3.250 Pilot Diameter Diameter Pilot (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

Features • SAE 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 215 Series Data Input Standard 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...

Open the catalog to page 10

Technical Information Side View 2.75 2.75 (Standard (Standard Pilot) Pilot) 2.88 2.88 (Deep 2.75 (Deep Pilot) Pilot) (Standard Pilot) 2.88 (Deep Pilot) 3.250 3.250 Pilot Pilot Diameter Diameter 3.250 Pilot Diameter 3/8 x 3/16 Kwy 0.125 (Standard Pilot 0.125 (Standard Pilot Depth) Depth) 0.250 (Deep Pilot 0.250 (Deep Pilot Depth) Depth) (2) 0.531(2) 0.531 Diameter Thru Holes Diameter Thru Holes 0.125 (Standard Pilot Depth) 0.250 (Deep Pilot Depth) (2) 0.531 Diameter Thru Holes 3.250 Bottom View 3.250 Pilot Diameter Pilot Diameter 3.250 Pilot Diameter Standard 215 Series Models Part Number Output...

Open the catalog to page 11

Overhung Load Adaptors

Overhung Load Adaptors

Catalog excerpts

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