Skip to product information
A cast iron SN 515 PLUMMER BLOCK resting on a light wood surface.

SN Series Plummer Block Housings (SN 500 & SN 600 Series) | Split Cast Iron Bearing Housings

The SN Series Split Plummer Block Housings (ISO/R 113 & DIN 736/737 compliant) are heavy-duty, two-piece cast iron bearing housings engineered to deliver maximum rigidity and alignment stability under heavy operational loads. Designed primarily to accommodate self-aligning ball bearings and spherical roller bearings with adapter sleeves, SN housings simplify installation, lubrication, and routine maintenance across industrial setups.

Manufactured from high-grade Grey Cast Iron (GG20 / FG 200), these split housings feature precision-machined bearing seats to tolerance H7/H8. Each housing unit consists of a removable top cap and base, enabling smooth shaft assembly, inspection, and replacement without dismantling adjacent power transmission components.

Complete Size Range & Series Breakdown

We stock and supply the complete spectrum of light, medium, and heavy-duty SN series housings:

1. SN 500 Series (For Light-to-Medium Duty Bearings on Adapter Sleeves)

Used with 1200K, 2200K self-aligning ball bearings and 22200K spherical roller bearings on H-series adapter sleeves.

  • Available Sizes:

    • Compact Shafts (20mm – 45mm): SN 505, SN 506, SN 507, SN 508, SN 509, SN 510

    • Mid-Range Shafts (50mm – 80mm): SN 511, SN 512, SN 513, SN 514, SN 515, SN 516, SN 517, SN 518

    • Large Industrial Shafts (85mm – 140mm): SN 519, SN 520, SN 522, SN 524, SN 526, SN 528, SN 530, SN 532

2. SN 600 Series (For Heavy-Duty Bearings on Adapter Sleeves)

Designed for higher load ratings and larger diameter bearing bores, accommodating 1300K, 2300K, and 22300K series bearings.

  • Available Sizes:

    • Compact Shafts (20mm – 45mm): SN 605, SN 606, SN 607, SN 608, SN 609, SN 610

    • Mid-Range Shafts (50mm – 80mm): SN 611, SN 612, SN 613, SN 615, SN 616, SN 617, SN 618

    • Large Industrial Shafts (85mm – 140mm): SN 619, SN 620, SN 622, SN 624, SN 626, SN 628, SN 630, SN 632

Applications & Industries

  • Conveyor Systems & Material Handling

  • Crushers, Ball Mills & Mining Machinery

  • Agricultural Machinery & Flour Mills

  • Pulp & Paper Mill Drives

  • Industrial Blowers, Fans & Pumps

Why Source From Rajasthan Bearing & Mill Stores, Kolkata?

  • Stock Availability

  • Complete Assembly Kits

  • Multiple Brand Options

  • Expert Technical Matching

You may also like