The Plummer Block, as known as (Split) Bearing Housing, which is an assembly comprising of a self-aligning ball bearing or spherical roller bearing placed in bearing boxes of various shapes, has a large load capacity and is easy to handle, therefore it is widely used in general industrial machinery such as conveyors.

Plummer Block Housings are manufactured from high-strength cast iron as standard but are also available in cast steel or spheroidal graphite cast iron. The housings have a re-lubrication facility and can be used with either oil or grease lubrication.

The SNL Plummer (Pillow) Block Housings are the most popular SKF bearing housings on the market, developed to be the first choice for design, quality and economy. They enable built-in bearings to achieve maximum service life with less maintenance requirements. Different bearing housing variants and seal designs are available, virtually eliminating the need for custom housings and allowing cost-effective bearing configurations to be manufactured.

SNL housings are made of grey cast iron. For applications where extra strength is needed, SNL housings are also available in spheroidal graphite cast iron. Housings made of spheroidal graphite cast iron are available from size 510-608 and are supplied with a solid base (no holes for attachment bolts) as standard. From size 511-608 the housings can be supplied with four oblong holes cast in the base. All bearing housings made of spheroidal graphite cast iron can be supplied with two drilled holes for attachment bolts.

Incoporated in 1999, HOLK Bearing leads the way in manufacturing Split Type Plummer Block Housings and Adapter Sleeves. 

Our plummer block housings range covers SN 200 series, SN 300 series, SN 500 (SSN 500) series, SN 600 (SSN 600) series, SNU 500 series, S 3000K series, SD 3000 series, SD 3100 series, SD 500 series, SD 600 series, SN 3000 (SSN 3000) series, SN 3100 (SSN 3100) series, SNL 200 series, SNL 300 series, SNL 500 series, SNL 600 series, SNL 3000 series, SNL 3100 series, SNL 3200 series, SNG series, SNH series, SNK series, SAF 500 series, SAF 600 series, to name just a few. 

The standard material is grey cast iron. Ductile iron, cast steel and stainless steel are also available. We also produce non-standard bearing housings as per customers' specific requirements. 

HOLK's max bearing housing fabrication capability: up to 5 tons/pc

Technical Details:

Product Name: Plummer Blocks, Split Type Bearing Housings

Series: SNL 500 

Model Number: SNL 515, SNL 517, SNL 520, SNL 526, SNL 530, SNL 532 etc

Material: Grey Cast Iron, Ductile Iron, Cast Steel

Lubrication: Grease Oil

Painting Color: Black

Interchangeability: SNL plummer block housings in the 2, 3, 5 and 6 series are dimensionally interchangeable with the SN, SNA and SNH series.

Applications: Agricultral Machinery, Mining Machinry, Papermaking Machinery, Sugar Mill Equipment, Sawmill Equipment, Heavy-Duty Machineries etc.

Features: Long life service, low noise, simple mounting. The SNL series housing base is reinforced with ribs and has extra material surrounding the holes for the attachment bolts.

Technical Details of the SNL 500 series Split Plummer Block Housings

Great care has been taken to ensure the correctness of the information contained in this publication but no liability can be assumed for any incorrect or incomplete data. The HOLK technical department reserves the right to final interpretation.

We produce top-notch quality Split Plummer Blocks worth more than US$1,000,000 to a big famous European bearing company every year.

We manufacture premium quality Bearing Adapter Sleeves worth more than US$500,000 to a big famous European bearing company every year.