SNH Series Heavy-Duty Bearing Housings (500, 600, 200 & 300 Series)

SNH Series Heavy-Duty Bearing Housings (500, 600, 200 & 300 Series)

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SNH Series Heavy-Duty Bearing Housings (500, 600, 200 & 300 Series)
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Product Description

The SNH Series Bearing Housings from J&J Engineering India are advanced heavy-duty plummer block housings designed as an upgraded replacement for conventional SN and SNA Series housings. While maintaining the same mounting dimensions, center height, and interchangeability standards, the SNH Series incorporates enhanced structural strength, improved sealing arrangements, and optimized lubrication performance for demanding industrial applications.

Engineered for medium to heavy-duty operating conditions, these housings are ideal for installations exposed to dust, vibration, contamination, and harsh industrial environments.

Design & Construction Features

The SNH Series features a reinforced and optimized housing design for improved rigidity and longer service life:

  • Thickened bottom cavity section for higher load-bearing capacity
  • Central cross rib for enhanced structural strength
  • Additional rib on the top cap for improved housing rigidity
  • Flat internal cavity design for smoother lubricant circulation
  • Horizontally split housing construction for easy bearing installation, inspection, and maintenance

Bearing Configuration & Shaft Range

Tapered Bore Bearings with Adapter Sleeves

  • Shaft diameter range: 20 mm to 140 mm

Cylindrical Bore Bearings

  • Shaft diameter range: 25 mm to 160 mm

These configurations provide flexibility for a wide range of industrial bearing applications.

Lubrication & Axial Positioning

  • Provision available for locating rings to achieve accurate axial bearing positioning
  • Suitable for both grease and oil lubrication systems
  • Grease nipple provided on the top of the housing for effective relubrication
  • For W33 type bearings, grease nipple is centrally positioned on the cap
  • For standard bearing arrangements, side-mounted grease nipples with cap dimples are provided

Sealing Arrangements

To ensure reliable performance in contaminated and severe operating environments, the SNH Series offers multiple sealing options:

  • TC Felt Seal – Felt collar with O-ring
  • TA V Seal
  • TG Double Lip Seal
  • TS Labyrinth Seal
  • TL Four Lip Seal
  • ND Taconite Seal for heavy-duty radial sealing applications

These sealing systems provide excellent protection against dust, moisture, grease leakage, and external contamination.

Drainage & End Cover Features

  • Drain hole with plug provided at the bottom of the housing for easy oil drainage
  • Provision available for oil level indicators through threaded connections
  • End cover arrangements available for closed shaft-end applications

End Cover Designations

  • ATC – TC seal with end cover
  • ATS – TS seal with end cover

Foundation & Mounting Options

  • Standard housing supplied with two foundation slot holes
  • Optional four-slot mounting arrangement available for severe vibration and heavy-load conditions

Suffix Identification

  • MS1 – Two foundation slot holes
  • MS2 – Four foundation slot holes

For extreme heavy-duty applications, SSNHD Series housings with solid ductile iron base and four elliptical mounting slots are also available.

Material Options

To suit varying load capacities and industrial operating conditions, SNH Series housings are available in:

  • Graded Cast Iron FG 220 as per IS 210
  • Cast Steel Grade 280–520 as per IS 1030
  • Spheroidal Graphite (Ductile) Iron Grade 400/15 as per IS 1865

Higher material grades can also be supplied on request for specialized applications requiring enhanced load capacity and durability.

Series Range & Bearing Compatibility

SNH 500 / 600 Series

Suitable for bearings with adapter sleeves:

  • 1200K
  • 1300K
  • 2200K
  • 2300K
  • 22200CK
  • 22300CK

SNH 200 / 300 Series

Suitable for cylindrical bore bearings:

  • 1200
  • 1300
  • 2200
  • 2300
  • 22200CC
  • 22300CC

The SNH Series is dimensionally interchangeable and compatible with bearings from leading international manufacturers including SKF, FAG, NTN, ZKL, and TIMKEN.

International Standards

All J&J SNH Series Bearing Housings are manufactured in accordance with ISO 113:2010 International Standards, ensuring complete dimensional interchangeability and global compatibility.

Manufactured in India with global quality standards, the SNH Series delivers reliable, durable, and high-performance bearing housing solutions for demanding industrial applications.

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