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Deep Groove Ball Bearing Imperial Sizes
Imperial inch size ball bearings are some of the most common deep groove ball bearings used today. Standard inch round bore sizes range from 0.0937" up to 1.375". We supply imperial ball bearings in a slew of configurations; open, sealed on both sides (-2RS), sealed on one side (-RS), shielded on both sides (-ZZ), shielded on one side (-Z), and snap ring (NR). Supplying one of the largest selections of premium ball-bearings USA Roller Chain & Sprockets sets it's self apart from others by being a tier 1 industry-leading ball bearing supplier with an A+ BBB rating. We also stock a range of additional power transmission and industrial components, for more information or to place an order please contact us and we will be happy to assist you.
 Open (No Seal or Sheild) |
 RS (Seal on One Side) |
 2-RS (Seal on Both Sid) |
 Z (Shield on One Sides) |
 ZZ (Shields on Both Sides) |
 NR (Retaining Ring) |
|---|---|---|---|---|---|
R-Series Inch Ball Bearings
| Bearing Size | Bore (d) | Diameter (D) | Width Open (B) | Width Sealed (B) | Dynamic Load Rating (LBS) | Static Load Rating (LBS) | Grease Limiting Speed 2RS (RPM) | Grease Limiting Speed ZZ/ Open (RPM) | Oil Limiting Speed Open (RPM) |
|---|---|---|---|---|---|---|---|---|---|
| R2 |
1/8" |
3/8" | 0.1562" | 0.1562" | 140LBS | 49LBS | 26400 | 49000 | 58000 |
| R2A | 1/8" | 1/2" | 0.1719" | 0.1719" | 255LBS | 90LBS | 29200 | 42000 | 51000 |
| R3 | 3/16" | 1/2" | 0.1562" | 0.196" | 292LBS | 109LBS | 24600 | 41000 | 48000 |
| R3A | 3/16" | 5/8" | 0.196" | 0.196" | 292LBS | 109LBS | 24600 | 41000 | 48000 |
| R4 | 1/4" | 5/8" | 0.196" | 0.196" | 360LBS | 150LBS | 21600 | 36000 | 43000 |
| R4A | 1/4" | 3/4" | 0.2188" | 0.2812" | 590LBS | 239LBS | 20400 | 34000 | 40000 |
| R6 | 3/8" | 7/8" | 0.2188" | 0.2812" | 750LBS | 315LBS | 18600 | 31000 | 37000 |
| R8 | 1/2" | 1-1/8" | 0.25" | 0.3125" | 1,150LBS | 540LBS | 15600 | 26000 | 30000 |
| R10 | 5/8" | 1-3/8" | 0.2812" | 0.343" | 1,340LBS | 7288LBS | 12000 | 20000 | 23000 |
| R12 | 3/4" | 1-5/8" | 0.3125" | 0.4375" | 2,110LBS | 1,120LBS | 10800 | 18000 | 21000 |
| R14 | 7/8" | 1-7/8" | 0.375" | 0.5" | 2,270LBS | 1,310LBS | 9000 | 15000 | 18000 |
| R16 | 1" | 2" | 0.375" | 0.5" | 2,270LBS | 1,310LBS | 8400 | 14000 | 16000 |
| R18 | 1-1/8" | 2-1/8" | 0.375" | 0.5" | 2,980LBS | 1,860LBS | 7800 | 13000 | 15000 |
| R20 | 1-1/4" | 2-1/4" | 0.375" | 0.5" | 2,980LBS | 1,860LBS | 7500 | 12000 | 14000 |
| R22 | 1-3/8" | 2-1/2" | 0.4375" | 0.5625" | 3,590LBS | 2,320LBS | 7200 | 11000 | 12500 |
| R24 | 1-1/2" | 2-5/8" | 0.4375" | 0.5625" | 3,770LBS | 2,590LBS | 6900 | 10000 | 11500 |
RLS-Series Inch Ball Bearings
| Bearing Size | Bore (d) | Diameter (D) | Width (B) | Dynamic Load Rating (LBS) | Static Load Rating (LBS) | Limiting Speed (RPM) |
|---|---|---|---|---|---|---|
| RLS4 | 1/2" | 1-5/16" | 3/8" | 703LBS | 316LBS | 32,000 |
| RLS5 | 5/8" | 1-9/16" | 7/16" | 976LBS | 459LBS | 24,000 |
| RLS6 | 3/4" | 1-7/8" | 9/16" | 1,296LBS | 633LBS | 20,000 |
| RLS7 | 7/8" | 2" | 9/16" | 1,541LBS | 765LBS | 19,000 |
| RLS8 | 1" | 2-1/4" | 5/8" | 1,816LBS | 898LBS | 17,000 |
| RLS9 | 1-1/8" | 2-1/2" | 5/8" | 1,990LBS | 1,020LBS | 15,000 |
| RLS10 | 1-1/4" | 2-3/4" | 11/16" | 2,296LBS | 1,204LBS | 14,000 |
| RLS11 | 1-3/8" | 3" | 11/16" | 2,602LBS | 1,398LBS | 13,000 |
| RLS12 | 1-1/2" | 3-1/4" | 3/4" | 3,133LBS | 1,694LBS | 11,000 |
| RLS13 | 1-5/8" | 3-1/2" | 3/4" | 3,388LBS | 1,898LBS | 11,000 |
| RLS14 | 1-3/4" | 3-3/4" | 13/16" | 3,582LBS | 2,000LBS | 10,000 |
| RLS16 | 2" | 4" | 13/16" | 4,449LBS | 2,551LBS | 10,000 |
| RLS18 | 2-1/4" | 4-1/2" | 7/8" | 4,847LBS | 2,857LBS | 8,000 |
| RLS20 | 2-1/2" | 5" | 15/16" | 6,306LBS | 3,827LBS | 7,000 |
| RLS22 | 2-3/4" | 5-1/4" | 15/16" | 6,765LBS | 4,133LBS | 6,400 |
| RLS24 | 3" | 5-3/4" | 1-1/16" | 7,163LBS | 4,592LBS | 6,000 |
| RLS26 | 3-1/4" | 6" | 1-1/16" | 8,490LBS | 5,408LBS | 5,800 |
| RLS28 | 3-1/2" | 6-1/2" | 1-1/8" | 9,755LBS | 6,327LBS | 5,300 |
| RLS30 | 3-3/4" | 6-3/4" | 1-1/8" | 11,020LBS | 7,092LBS | 5,000 |
| RLS32 | 4" | 7-1/4" | 1-1/4" | 12,653LBS | 8,163LBS | 4,700 |
| RLS34 | 4-1/4" | 7-1/2" | 1-1/4" | 12,653LBS | 8,316LBS | 4,500 |
| RLS36 | 4-1/2" | 8" | 1-5/16" | 13,265LBS | 8,827LBS | 4,300 |
| RLS38 | 4-3/4" | 8-1/4" | 1-5/16" | 14,082LBS | 9,694LBS | 4,100 |
| RLS40 | 5" | 9" | 1-3/8" | 15,102LBS | 11,020LBS | 3,800 |
| RLS44 | 5-1/2" | 9-1/2" | 1-3/88" | 15,918LBS | 11,837LBS | 3,600 |
| RLS48 | 6" | 10-1/2" | 1-9/16" | 17,755LBS | 13,980LBS | 3,200 |
| RLS52 | 6-1/2" | 11" | 1-9/16" | 18,980LBS | 15,306LBS | 3,000 |
RMS-Series Inch Ball Bearings
| Bearing Size | Bore (d) | Diameter (D) | Width (B) | Dynamic Load Rating (LBS) | Static Load Rating (LBS) | Limiting Speed (RPM) |
|---|---|---|---|---|---|---|
| RMS4 | 1/2" | 1-5/8" | 5/8" | 1,163LBS | 510LBS | 23,000 |
| RMS5 | 5/8" | 1-13/16" | 5/8" | 1,378LBS | 668LBS | 22,000 |
| RMS6 | 3/4" | 2" | 11/16" | 1,622LBS | 796LBS | 19,000 |
| RMS7 | 7/8" | 2-1/4" | 11/16" | 1,898LBS | 934LBS | 18,000 |
| RMS8 | 1" | 2-1/2" | 3/4" | 2,296LBS | 1,163LBS | 16,000 |
| RMS9 | 1-1/8" | 2-13/16" | 13/16" | 2,867LBS | 1,490LBS | 13,000 |
| RMS10 | 1-1/4" | 3-1/8" | 7/8" | 3,388LBS | 1,837LBS | 12,000 |
| RMS11 | 1-3/8" | 3-1/2" | 7/8" | 4,184LBS | 2,286LBS | 11,000 |
| RMS12 | 1-1/2" | 3-3/4" | 15/16" | 4,184LBS | 2,286LBS | 11,000 |
| RMS13 | 1-5/8" | 4" | 15/16" | 5,378LBS | 3,061LBS | 9,500 |
| RMS14 | 1-3/4" | 4-1/4" | 1-1/16" | 6,306LBS | 3,673LBS | 8,500 |
| RMS15 | 1-7/8" | 4-1/2" | 1-1/16" | 6,306LBS | 3,622LBS | 6,800 |
| RMS16 | 2" | 4-1/2" | 1-1/16" | 6,306LBS | 3,673LBS | 6,700 |
| RMS18 | 2-1/4" | 5" | 1-1/4" | 8,357LBS | 4,898LBS | 7,000 |
| RMS20 | 2-1/2" | 5-1/2" | 1-1/4" | 9,418LBS | 5,714LBS | 6,700 |
| RMS22 | 2-3/4" | 6-1/4" | 1-3/8" | 10,612LBS | 6,429LBS | 6,300 |
| RMS24 | 3" | 7" | 1-9/16" | 12,653LBS | 8,163LBS | 5,300 |
| RMS26 | 3-1/4" | 7-1/2" | 1-9/16" | 14,592LBS | 10,000LBS | 5,000 |
| RMS27 | 3-3/8" | 7-1/2" | 1-9/16" | 14,592LBS | 10,000LBS | 5,000 |
| RMS28 | 3-1/2" | 8-1/8" | 1-3/4" | 14,592LBS | 11,224LBS | 4,500 |
| RMS30 | 3-3/4" | 8-1/4" | 1-3/4" | 15,612LBS | 11,020LBS | 4,400 |
| RMS32 | 4" | 1-3/4" | 1-3/4" | 17,755LBS | 13,469LBS | 4,300 |
| RMS34 | 4-1/4" | 1-3/4" | 1-3/4" | 17,755LBS | 13,469LBS | 4,000 |
| RMS36 | 4-1/2" | 2" | 2" | 20,714LBS | 16,936LBS | 3,800 |