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Insert Bearings & Housed Units · Split Plummer Blocks (SN / SNL)

SN500 Series Split Plummer Blocks

16 catalogued sizes, dimensioned to DIN 736 / ISO 113. Pick any row and the technical drawing redraws to it.

SN500 Series Split Plummer Blocks to DIN 736 / ISO 113 are catalogued in shaft 20-110 mm. 16 sizes are held in the table below, and the technical drawing redraws to whichever row you select.

Standard
DIN 736 / ISO 113
Shaft
20-110 mm
Catalogued sizes
16

Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering.

SN500 Series Split Plummer Blocks technical product image

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the designation snaps the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

Request a Quotation for SN500 Series Split Plummer Blocks

The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

Request a Quotation

Specification
Business Information

Dimensions & Specifications (DIN 736 / ISO 113)

Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row.

DesignationFor bearing (adapter sleeve)Shaft diameter range (mm)
SN5051205K or 2205K (H305)20
SN5061206K or 2206K (H306)25
SN5071207K or 2207K (H307)30
SN5081208K or 2208K (H308)35
SN5091209K or 2209K (H309)40
SN5101210K or 2210K (H310)45
SN5111211K or 2211K (H311)50
SN5121212K or 2212K (H312)55
SN5131213K or 2213K (H313)60
SN5151215K or 2215K (H315)65
SN5161216K or 2216K (H316)70
SN5171217K or 2217K (H317)75
SN5181218K or 2218K (H318)80
SN5201220K or 2220K (H320)90
SN5221222K or 2222K (H322)100
SN5242224K (H3124)110

SN500 Series Split Plummer Blocks (DIN 736 / ISO 113) are insert bearings & housed units. The full size table is below, followed by the material and cage options, how the bearing is located on the shaft and in the housing, and where the type is and is not the right choice.

What Are SN500 Series Split Plummer Blocks?

SN500 Series Split Plummer Blocks are insert bearings & housed units defined by DIN 736 / ISO 113. They are selected by bearing designation and the dimensional characteristics shown below. Material, cage and sealing are specified separately from the designation and are covered further down this page.

Materials & Cage

The insert bearing is through-hardened GCr15 / 100Cr6 with a spherical outer ring. The housing is a separate material decision: grey cast iron for general industrial duty, ductile iron where shock is expected, pressed steel for light duty and low mass, thermoplastic or 304 stainless for washdown and food service. Seals are normally nitrile; specify FKM above 100 degrees C.

Typical Applications

Conveyors, agricultural equipment, fans and general OEM machinery, bolted straight to a frame with no machined housing bore.

Pricing

SN500 Series Split Plummer Blocks are supplied to order. Pricing starts from approximately US$32.00 per piece for standard shaft sizes with a grey cast iron housing and setscrew locking; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above.

Inside the plant

Manufactured in our own plant

This bearing is forged, hardened, ground, superfinished and clearance-set in-house. The stages below are where its tolerance class, its internal clearance and its noise grade are actually decided.

  1. Bearing ring blanks coming off the forging press
    01

    Forging & turning

    GCr15 bar and tube is cut, heated and forged into ring blanks, then turned to leave a uniform grinding allowance. Forging rather than machining from solid keeps the grain flow following the raceway, which is the surface that eventually fails.

    Blank dimensions and grinding stock checked at set-up and per shift.

  2. Bearing rings entering a continuous hardening furnace
    02

    Heat treatment

    Through-hardening brings GCr15 / 100Cr6 to 58–64 HRC; carburizing case-hardens 20CrMnTi where the section is heavy or the load is shock. Rings are then stabilized so they hold size in service rather than growing in the housing.

    Core and surface hardness per lot; retained austenite and dimensional stability to the ordered temperature class.

  3. Raceway grinding machine finishing a bearing inner ring
    03

    Raceway grinding

    Faces, bore, outer diameter and raceway are ground in sequence on separate machines. This is where the tolerance class is created: P0, P6, P5 or P4 is a grinding outcome, not a sorting outcome.

    Bore and outer diameter deviation, raceway roundness and face runout measured to ISO 492 on every setup.

  4. Superfinishing stones acting on a ground raceway
    04

    Honing & superfinishing

    The ground raceway is honed to remove the grinding lay and bring surface roughness down to a fraction of a micrometre. Raceway finish is what decides whether a lubricant film forms, and therefore what decides bearing life far more than the load rating alone.

    Surface roughness Ra and waviness measured per lot.

Video: SN500 Series Split Plummer Blocks

Third-party video, selected automatically for this topic. It is not produced by Bushing Bearings and is not a specification source — use the tables on this page for dimensional data.

Frequently Asked Questions

Which standard applies to SN500 Series Split Plummer Blocks, and how are they located on the shaft?

SN500 Series Split Plummer Blocks are manufactured to DIN 736 / ISO 113, which fixes the boundary dimensions on this page. They are mounted with a bolt-down housing, so no machined housing bore is needed in the frame.

Which sizes of SN500 Series Split Plummer Blocks does Bushing Bearings supply?

The table on this page lists 16 sizes for SN500 Series Split Plummer Blocks, ranging from SN505 to SN524. Sizes outside the table can be quoted on request.

In which materials are SN500 Series Split Plummer Blocks supplied?

SN500 Series Split Plummer Blocks are supplied in a GCr15 insert bearing in a grey cast iron, ductile iron, pressed steel, thermoplastic or 304 stainless housing. Material is only part of the specification: state the internal clearance group (or preload class), the seal or shield type and the cage material alongside the designation, because all three change the part you receive.

How do I request a quotation?

Use the parametric drawing on this page to set the exact configuration — designation, internal clearance, seal type and cage — and click "Request this configuration". A specialist from Bushing Bearings will respond within one business day.