Sistema de designación
La designación completa para un rodamiento Y o una unidad de rodamiento Y consta de una designación básica con o sin prefijo y/o uno o varios sufijos.
Para obtener detalles del sistema de designación de rodamientos Y, consulte Rodamientos Y.
Ball bearing plummer block units
Designation examples and the applicable options for ball bearing plummer block units are given below.
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Examples
| Metric unit: | |||
| SYK 20 TD
| where | SY = |  |
| K = |  |
||
| 20 = |  |
||
| TD = |  |
||
| Inch unit: | |||
| SY 2 11/16 LF/AH
| where | SY = | |
| 2 11/16 = | |
||
| LF | |
||
| AH = |  |
||
Applicable options for ball bearing plummer block units
| Housing/unit type |
|
| J stands for dimensions in accordance with JIS 1559-2009 for normal base plummer block housings |
| P | Plummer block housing, pressed steel |
| P .. R-
| Plummer block housing, pressed steel, rubber seating ring included |
| P2B
| Plummer block housing, normal base |
| P2BT
| Plummer block housing, short base |
| SY | Plummer block housing, normal base
|
| SYF | Plummer block housing, short base |
| Housing material |
| – | Grey cast iron |
| C | Composite for the SKF Food Line |
| D | Spheroidal graphite cast iron |
| K
| Composite
|
| SS
| Stainless steel
|
| Size identification
|
| Bearing units for metric shafts: bearing bore uncoded | |
| 12
to 100 | 12 mm
to 100 mm |
| M
| Metric size and metric threads, where applicable (only for the SKF Food Line units)
|
| Standard bearing units for inch shafts: bearing bore uncoded
|
|
| 1/2
to 3 | 1/2 in. (12,7 mm)
to 3 in. (76,2 mm) |
| SKF Food Line bearing units for inch shafts: bearing bore coded
Three-digits combination that follows the housing/unit type and material identification of the unit designation: the first digit is the number of whole inches and the second and third digits are the number of sixteenths of an inch. |
|
| 012
to 115 | 3/4 in. (19,05 mm)
to 1 15/16 in. (49,213 mm) |
| Housings made of cast iron, composite, composite for the SKF Food Line or stainless steel | |
| 503
to 520 | for insert bearings of sizes 203, 203-008, 203/12 and 203/15
to for insert bearings of size 220 |
| Housings made of pressed steel (not supplied as bearing unit) | |
| 40
to 85 | 40 mm housing bore diameter
to 85 mm housing bore diameter |
 | Additional housing features |
| D
| Next larger size than normal (inch units only)
|
| L
| Next larger size than normal (inch units only) |
| N
| Relubricable execution of a composite housing. |
| S
| Next smaller size than normal (inch units only)
|
| U
| Deviating housing features
|
| Y
| Suitable for ECW end cover |
| Z
| Short base unit with inch thread (metric bearings only)
|
| Inserted bearing |
| CPSS | Stainless steel insert bearing with grub screws, special bearing design for DFH units |
| FM | Insert bearing with an eccentric locking collar, YET 2 series |
| KF | Insert bearing with a tapered bore on an adapter sleeve, YSA 2-2FK series
|
| LD, LDW
| Insert bearing with SKF ConCentra locking, YSPAG 2 series |
| LF
| Insert bearing with SKF ConCentra locking, YSP 2-2F series
|
| RM | Insert bearing with grub screws, YAT 2 series |
| TD, TDW
| Insert bearing with grub screws, YARAG 2 series |
| TF
| Insert bearing with grub screws, YAR 2-2F series
|
| TPSS
| Stainless steel insert bearing with grub screws, YAR 2-2LPW/SS series |
| TPZM | Insert bearing with grub screws, zinc-coated inner and outer rings, YAR 2-2LPW/ZM series |
| TR
| Insert bearing with grub screws, YAR 2-2RF series |
| WD, WDW
| Insert bearing with an eccentric locking collar, YELAG 2 series |
| WF | Insert bearing with an eccentric locking collar, YEL 2-2F series |
| Suffixes - other features
|
| AH | Unit for air-handling applications |
| DFH
| Sealed unit (back seal and end cover installed) |
