RA bearings provide a narrow bearing section for rotary assemblies with limited installation space. Use this category to find individual RA model pages and the series dimension table. Check the mounting support, rotating ring and required stiffness together with the available envelope.
RA bearings provide a narrow bearing section for rotary assemblies with limited installation space. Use this category to find individual RA model pages and the series dimension table. Check the mounting support, rotating ring and required stiffness together with the available envelope.
RAU reference designs can share RA boundary dimensions while using a different ring construction. Match the full configuration before considering an alternative. Compare the related series.
RA10008 · RA12008 · RA8008 · RA11008 · RA9008 · RA5008 · RA14008 · RA20013 · RA16013 · RA18013
Read all dimensions against the matching drawing. Blank values mean unspecified, not zero. Reference numbers do not establish full interchangeability.
| LYDL designation | d (mm) | D (mm) | B (mm) | Dpw (mm) | ds (mm) | Dh (mm) | Cr (kN) | C0r (kN) | Mass (kg) | Reference designation |
|---|---|---|---|---|---|---|---|---|---|---|
| LRA 5008 | 50 | 66 | 8 | 57 | 53.5 | 60.5 | 5.1 | 7.19 | 0.08 | RA5008 |
| LRA 6008 | 60 | 76 | 8 | 67 | 63.5 | 70.5 | 5.68 | 8.68 | 0.09 | RA6008 |
| LRA 7008 | 70 | 86 | 8 | 77 | 73.5 | 80.5 | 5.98 | 9.8 | 0.1 | RA7008 |
| LRA 8008 | 80 | 96 | 8 | 87 | 83.5 | 90.5 | 6.37 | 11.3 | 0.11 | RA8008 |
| LRA 9008 | 90 | 106 | 8 | 97 | 93.5 | 100.5 | 6.76 | 12.4 | 0.12 | RA9008 |
| LRA 10008 | 100 | 116 | 8 | 107 | 103.5 | 110.5 | 7.15 | 13.9 | 0.14 | RA10008 |
| LRA 11008 | 110 | 126 | 8 | 117 | 113.5 | 120.5 | 7.45 | 15 | 0.15 | RA11008 |
| LRA 12008 | 120 | 136 | 8 | 127 | 123.5 | 130.5 | 7.84 | 16.5 | 0.17 | RA12008 |
| LRA 13008 | 130 | 146 | 8 | 137 | 133.5 | 140.5 | 7.94 | 17.6 | 0.18 | RA13008 |
| LRA 14008 | 140 | 156 | 8 | 147 | 143.5 | 150.5 | 8.33 | 19.1 | 0.19 | RA14008 |
| LRA 15008 | 150 | 166 | 8 | 157 | 153.5 | 160.5 | 8.82 | 20.6 | 0.2 | RA15008 |
| LRA 16013 | 160 | 186 | 13 | 172 | 165 | 179 | 23.3 | 44.9 | 0.59 | RA16013 |
| LRA 17013 | 170 | 196 | 13 | 182 | 175 | 189 | 23.5 | 46.5 | 0.64 | RA17013 |
| LRA 18013 | 180 | 206 | 13 | 192 | 185 | 199 | 24.5 | 49.8 | 0.68 | RA18013 |
| LRA 19013 | 190 | 216 | 13 | 202 | 195 | 209 | 24.9 | 51.5 | 0.69 | RA19013 |
| LRA 20013 | 200 | 226 | 13 | 212 | 205 | 219 | 25.8 | 54.7 | 0.71 | RA20013 |
| LYDL designation | d (mm) | D (mm) | B (mm) | Dpw (mm) | ds (mm) | Dh (mm) | Cr (kN) | C0r (kN) | Mass (kg) | Reference designation |
|---|---|---|---|---|---|---|---|---|---|---|
| LRBT205 | 20 | 31 | 5 | 25.5 | 22.5 | 27 | 1.4 | 1.29 | 0.014 | RAU2005 |
| LRBT305 | 30 | 41 | 5 | 35.5 | 32.5 | 37 | 1.77 | 1.97 | 0.02 | RAU3005 |
| LRBT405 | 40 | 51 | 5 | 45.5 | 42.5 | 47 | 2 | 2.52 | 0.026 | RAU4005 |
| XRBT505 | 50 | 61 | 5 | 55.5 | 52.5 | 57 | 2.28 | 3.2 | 0.032 | RAU5005 |
| LYDL designation | d (mm) | D (mm) | B (mm) | Dpw (mm) | ds (mm) | Dh (mm) | Cr (kN) | C0r (kN) | Mass (kg) | Reference designation |
|---|---|---|---|---|---|---|---|---|---|---|
| LRA5008C | 50 | 66 | 8 | 57 | 53.5 | 60.5 | 5.1 | 7.19 | 0.08 | RA5008C |
| LRA6008C | 60 | 76 | 8 | 67 | 63.5 | 70.5 | 5.68 | 8.68 | 0.09 | RA6008C |
| LRA7008C | 70 | 86 | 8 | 77 | 73.5 | 80.5 | 5.98 | 9.8 | 0.1 | RA7008C |
| LRA8008C | 80 | 96 | 8 | 87 | 83.5 | 90.5 | 6.37 | 11.3 | 0.11 | RA8008C |
| LRA9008C | 90 | 106 | 8 | 97 | 93.5 | 100.5 | 6.76 | 12.4 | 0.12 | RA9008C |
| LRA10008C | 100 | 116 | 8 | 107 | 103.5 | 110.5 | 7.15 | 13.9 | 0.14 | RA10008C |
| LRA11008C | 110 | 126 | 8 | 117 | 113.5 | 120.5 | 7.45 | 15 | 0.15 | RA11008C |
| LRA12008C | 120 | 136 | 8 | 127 | 123.5 | 130.5 | 7.84 | 16.5 | 0.17 | RA12008C |
| LRA13008C | 130 | 146 | 8 | 137 | 133.5 | 140.5 | 7.94 | 17.6 | 0.18 | RA13008C |
| LRA14008C | 140 | 156 | 8 | 147 | 143.5 | 150.5 | 8.33 | 19.1 | 0.19 | RA14008C |
| LRA15008C | 150 | 166 | 8 | 157 | 153.5 | 160.5 | 8.82 | 20.6 | 0.2 | RA15008C |
| LRA16013C | 160 | 186 | 13 | 172 | 165 | 179 | 23.3 | 44.9 | 0.59 | RA16013C |
| LRA17013C | 170 | 196 | 13 | 182 | 175 | 189 | 23.5 | 46.5 | 0.64 | RA17013C |
| LRA18013C | 180 | 206 | 13 | 192 | 185 | 199 | 24.5 | 49.8 | 0.68 | RA18013C |
| LRA19013C | 190 | 216 | 13 | 202 | 195 | 209 | 24.9 | 51.5 | 0.69 | RA19013C |
| LRA20013C | 200 | 226 | 13 | 212 | 205 | 219 | 25.8 | 54.7 | 0.71 | RA20013C |
Reference corrections: RA9008 / RA9008C Cr = 6.76 kN; RA10008 / RA10008C mass = 0.14 kg; RA11008 / RA11008C mass = 0.15 kg. Source: THK catalogue 513K, A18-33–34. These are catalogue comparison values; confirm the LYDL specification for the ordered configuration.

The RA table lists 50–200 mm bores. Catalogue load ratings and mass can differ between designations and source editions; the approved LYDL drawing controls the supplied item.
Technical reference: THK RAU / RA dimensional-family information. Brand names identify reference families only. Supplied LYDL dimensions, tolerances, load ratings and acceptance requirements are defined by the drawing and quotation agreed for the order.
Request a drawing or quote with the complete model, quantity, loads, speed, duty cycle and mounting requirements.