1726204-2RS1 bearing: complete specifications & equivalents
The 1726204-2RS1 is a ISO 15 radial bearing sized 20 x 47 x 14 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 20 mm |
| Outer diameter D | 47 mm |
| Width B | 14 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 12.7 kN |
| Basic static load rating C0 | 6.55 kN |
| Fatigue load limit Pu | 0.28 kN |
| Limiting speed (mechanical) | 10000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 100 g |
| Manufacturer designation | 1726204-2RS1 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-28 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-28
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & 17262-series range
| Bore d | 0.787 in |
|---|---|
| Outer diameter D | 1.85 in |
| Width B | 0.551 in |
| ISO bore code | 04 |
| Radial section height (D−d)/2 | 13.5 mm |
| Smallest bore in 17262-series | 17 mm |
| Largest outer diameter in 17262-series | 110 mm |
| Width range across 17262-series | 12–22 mm |
| Bore position in 17262-series (smallest first) | 2 of 10 |
| Bore above smallest 17262-series size | 3 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6204 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6204 shares the 20x47x14 mm ISO 15 dimension-series 03 envelope and ratings within 10 %, but this SKF insert has a SPHERED outside surface for a Y-housing while 6204 has a cylindrical OD for a machined bore — envelope/load match, never a drop-in substitute. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 1726204-2RS1 model number is decoded
The 17262 series order number 1726204-2RS1 is a SKF insert bearing (Y-bearing) for a 20 mm shaft: insert bearing with a standard (non-extended) inner ring, built to the ISO 15 diameter-series envelope with a sphered OD of 47 mm. The unit is a capped deep-groove ball bearing to the ISO 15 03 envelope whose outer surface is sphered instead of cylindrical, so it combines a standard fit with Y-housing alignment. reading 1726xx: 172 = insert bearing with a standard-width inner ring, 6 = ISO 15 dimension series 03 with a spherically shaped outside surface for self-aligning in a Y-housing. the final two digits 04 follow the standard bore-code rule (03 = 17 mm, then x5), giving a 20 mm bore. the -2RS1 suffix is the classic contact NBR seal on each side without add-on flingers — grease retention for life inside the sphered-OD ISO 15 envelope. Envelope 20x47x14 mm (0.787x1.85x0.551 in), outer ring 14 mm wide, C 12.7 kN, C0 6.55 kN, Pu 0.28 kN. The catalogue publishes a single speed ceiling, the limiting speed: 10,000 r/min; mass 100 g. Selection figures for 1726204-2RS1: C0/C is 0.516, Pu 0.28 kN is 2.205 % of the 12.7 kN dynamic rating, and the 100 g catalogue mass works out to roughly 5 g per millimetre of the 20 mm bore. Outer-vs-overall width: the outer ring is 14 mm wide inside the 14 mm total, equal to the overall width because this is the standard-inner-ring execution. Fatigue-limit check: Pu 0.28 kN is the equivalent-load threshold under which the SKF adjusted-rating model credits very long life for 1726204-2RS1 — most belt-driven mounted-unit loads sit comfortably under 2.205 % of C. Static-first planning: the 0.468 kN of C0 per overall-width millimetre is the figure for belt tension peaks and rotor imbalance standstill loads on the 20 mm shaft, not the 12.7 kN L10 value. Imperial procurement cross-check: 0.787 in bore, 1.85 in OD, 0.551 in overall width; the 100 g mass converts to 0.100 kg (3.5 oz) for the bill of materials. Standard-inner-ring note: unlike YAR/YEL/YSP inserts this 172 execution has NO shaft locking device and NO extended ring — it locates by fits like a normal sealed deep-groove ball bearing, while the sphered outside surface still provides static self-alignment inside the Y-housing. Geometry note: with the standard inner ring the 14 mm width and 20x47 mm bore/OD match the 63-series deep-groove ball envelope, while only the sphered outer surface identifies it as a Y-insert.
Typical equipment & failure modes
Common applications
- light conveyor take-ups with standard shaft fits
- small Y-housed fan positions
Known failure patterns
- shaft fit wrong (no locking device exists): too loose creeps, too tight removes the residual clearance the spherical seat relies on
- VP274/B lubrication holes blocked by a misaligned housing groove starve the spherical seat during re-greasing
- water or slurry past the seal lip emulsifies the life-long grease and rusts the flinger recess
- relubricated with incompatible grease that hardens the factory fill and drags the seals
- sphered OD and spherical housing bore left dry or painted over: the static self-aligning feature freezes solid with corrosion
Selection pitfalls — read before you substitute
- No locking device means shaft preparation is everything for 1726204-2RS1: observe the fit, abutment and circlip recommendations rather than expecting screws or a collar to rescue a loose shaft.
- When ordering a like-for-like replacement, note whether the old part carried the B lubrication-hole execution: housing grooves aligned to B holes leave the non-B seal-only variant without its re-greasing path.
- The 20x47 mm envelope matching a 63-series bearing tempts substitution into a cylindrical housing — do not: the sphered OD only works in the mating spherical Y-housing bore.
- The 12.7/6.55 kN figures belong specifically to 1726204-2RS1; HV stainless, AG agricultural and VE495 zinc-plated variants of the same envelope publish derated values, so write the complete order number including suffixes on the purchase and maintenance records.
Frequently asked questions
What are the dimensions and catalogue data of 1726204-2RS1?
Boundary dimensions: bore 20 mm, sphered OD 47 mm, overall width 14 mm; weight 100 g. Loads: dynamic 12.7 kN, static 6.55 kN, fatigue 0.28 kN; the only published speed is the 10,000 r/min limiting value.
What does the designation 1726204-2RS1 mean?
reading 1726xx: 172 = insert bearing with a standard-width inner ring, 6 = ISO 15 dimension series 03 with a spherically shaped outside surface for self-aligning in a Y-housing. the final two digits 04 follow the standard bore-code rule (03 = 17 mm, then x5), giving a 20 mm bore. the -2RS1 suffix is the classic contact NBR seal on each side without add-on flingers — grease retention for life inside the sphered-OD ISO 15 envelope.
Is 1726204-2RS1 the same as a 6304 sealed deep-groove bearing?
The 20x47x14 mm envelope and ratings follow the 63-series plan, but the OUTER surface is spherically ground for a Y-housing; pressing it into a normal cylindrical bore defeats its design. Treat it as an insert, not a drop-in 63-bearing.
What is a 172-series insert bearing?
It is an insert bearing with a STANDARD-width inner ring (172 prefix) instead of the extended YAR/YEL/YSP rings; the next digits give the sphered-OD ISO 15 dimension series — 62 for series 02 and 63 for series 03. It locks by fits, like a normal sealed deep-groove bearing, not by screws or a collar.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-28. Read our editorial & correction policy.