• NSK 23 Series Self-Aligning Ball Bearings (Cylindrical & K Bore)
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NSK 23 Series Self-Aligning Ball Bearings (Cylindrical & K Bore)

NSK 23 Series Self-Aligning Ball Bearings (Cylindrical & K Bore)

NSK 23 series self-aligning ball bearings, bore 10-110 mm, with cylindrical bore and, where listed, tapered bore (K suffix, taper 1:12).

Key features

  • Double-row balls with spherical outer-ring raceway
  • Accommodates misalignment between shaft and housing
  • K suffix: tapered bore 1:12 for adapter or withdrawal sleeve mounting
  • Low friction and low heat generation

Specifications

Bearing type Self-aligning ball bearing
Series 23
Bore range 10-110 mm
Bore type Cylindrical; K = tapered 1:12
Load ratings Basic dynamic Cr / static C0r
Speed basis Grease lubrication limit
Source NSK Rolling Bearings Catalogue (Korean ed.), p. B74-B79
2300 d: 10 mm | D: 35 mm | B: 17 mm | Cr: 9.2 kN | C0r: 2.01 kN | Grease speed: 18000 rpm
2301 d: 12 mm | D: 37 mm | B: 17 mm | Cr: 12.1 kN | C0r: 2.73 kN | Grease speed: 17000 rpm
2302 d: 15 mm | D: 42 mm | B: 17 mm | Cr: 12.3 kN | C0r: 2.91 kN | Grease speed: 14000 rpm
2303 d: 17 mm | D: 47 mm | B: 19 mm | Cr: 14.7 kN | C0r: 3.55 kN | Grease speed: 13000 rpm
2304 d: 20 mm | D: 52 mm | B: 21 mm | Cr: 18.5 kN | C0r: 4.7 kN | Grease speed: 11000 rpm
2304K d: 20 mm | D: 52 mm | B: 21 mm | Cr: 18.5 kN | C0r: 4.7 kN | Grease speed: 11000 rpm
2305 d: 25 mm | D: 62 mm | B: 24 mm | Cr: 24.9 kN | C0r: 6.6 kN | Grease speed: 9500 rpm
2305K d: 25 mm | D: 62 mm | B: 24 mm | Cr: 24.9 kN | C0r: 6.6 kN | Grease speed: 9500 rpm
2306 d: 30 mm | D: 72 mm | B: 27 mm | Cr: 32 kN | C0r: 8.75 kN | Grease speed: 8000 rpm
2306K d: 30 mm | D: 72 mm | B: 27 mm | Cr: 32 kN | C0r: 8.75 kN | Grease speed: 8000 rpm
2307 d: 35 mm | D: 80 mm | B: 31 mm | Cr: 40 kN | C0r: 11.3 kN | Grease speed: 7100 rpm
2307K d: 35 mm | D: 80 mm | B: 31 mm | Cr: 40 kN | C0r: 11.3 kN | Grease speed: 7100 rpm
2308 d: 40 mm | D: 90 mm | B: 33 mm | Cr: 45.5 kN | C0r: 13.5 kN | Grease speed: 6300 rpm
2308K d: 40 mm | D: 90 mm | B: 33 mm | Cr: 45.5 kN | C0r: 13.5 kN | Grease speed: 6300 rpm
2309 d: 45 mm | D: 100 mm | B: 36 mm | Cr: 55 kN | C0r: 16.7 kN | Grease speed: 5600 rpm
2309K d: 45 mm | D: 100 mm | B: 36 mm | Cr: 55 kN | C0r: 16.7 kN | Grease speed: 5600 rpm
2310 d: 50 mm | D: 110 mm | B: 40 mm | Cr: 65 kN | C0r: 20.2 kN | Grease speed: 5000 rpm
2310K d: 50 mm | D: 110 mm | B: 40 mm | Cr: 65 kN | C0r: 20.2 kN | Grease speed: 5000 rpm
2311 d: 55 mm | D: 120 mm | B: 43 mm | Cr: 76.5 kN | C0r: 24 kN | Grease speed: 4800 rpm
2311K d: 55 mm | D: 120 mm | B: 43 mm | Cr: 76.5 kN | C0r: 24 kN | Grease speed: 4800 rpm
2312 d: 60 mm | D: 130 mm | B: 46 mm | Cr: 88.5 kN | C0r: 28.3 kN | Grease speed: 4300 rpm
2312K d: 60 mm | D: 130 mm | B: 46 mm | Cr: 88.5 kN | C0r: 28.3 kN | Grease speed: 4300 rpm
2313 d: 65 mm | D: 140 mm | B: 48 mm | Cr: 97 kN | C0r: 32.5 kN | Grease speed: 3800 rpm
2313K d: 65 mm | D: 140 mm | B: 48 mm | Cr: 97 kN | C0r: 32.5 kN | Grease speed: 3800 rpm
2314 d: 70 mm | D: 150 mm | B: 51 mm | Cr: 111 kN | C0r: 37.5 kN | Grease speed: 3600 rpm
2315 d: 75 mm | D: 160 mm | B: 55 mm | Cr: 125 kN | C0r: 43 kN | Grease speed: 3400 rpm
2315K d: 75 mm | D: 160 mm | B: 55 mm | Cr: 125 kN | C0r: 43 kN | Grease speed: 3400 rpm
2316 d: 80 mm | D: 170 mm | B: 58 mm | Cr: 130 kN | C0r: 45 kN | Grease speed: 3200 rpm
2316K d: 80 mm | D: 170 mm | B: 58 mm | Cr: 130 kN | C0r: 45 kN | Grease speed: 3200 rpm
2317 d: 85 mm | D: 180 mm | B: 60 mm | Cr: 142 kN | C0r: 51.5 kN | Grease speed: 3000 rpm
2317K d: 85 mm | D: 180 mm | B: 60 mm | Cr: 142 kN | C0r: 51.5 kN | Grease speed: 3000 rpm
2318 d: 90 mm | D: 190 mm | B: 64 mm | Cr: 154 kN | C0r: 57.5 kN | Grease speed: 2800 rpm
2318K d: 90 mm | D: 190 mm | B: 64 mm | Cr: 154 kN | C0r: 57.5 kN | Grease speed: 2800 rpm
2319 d: 95 mm | D: 200 mm | B: 67 mm | Cr: 161 kN | C0r: 64.5 kN | Grease speed: 2800 rpm
2319K d: 95 mm | D: 200 mm | B: 67 mm | Cr: 161 kN | C0r: 64.5 kN | Grease speed: 2800 rpm
2320 d: 100 mm | D: 215 mm | B: 73 mm | Cr: 187 kN | C0r: 79 kN | Grease speed: 2400 rpm
2320K d: 100 mm | D: 215 mm | B: 73 mm | Cr: 187 kN | C0r: 79 kN | Grease speed: 2400 rpm
2321 d: 105 mm | D: 225 mm | B: 7 mm | Cr: 200 kN | C0r: 87 kN | Grease speed: 2400 rpm
2322 d: 110 mm | D: 240 mm | B: 80 mm | Cr: 211 kN | C0r: 94.5 kN | Grease speed: 2200 rpm
2322K d: 110 mm | D: 240 mm | B: 80 mm | Cr: 211 kN | C0r: 94.5 kN | Grease speed: 2200 rpm
Self-Aligning Ball BearingsNSK
40 product codes available in this family
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NSK 23 Series Self-Aligning Ball Bearings (Cylindrical & K Bore)

Brand NSK·Self-Aligning Ball Bearings

Available part numbers (40)

2300, 2301, 2302, 2303, 2304, 2304K, 2305, 2305K, 2306, 2306K + 30 more — see full table ↓

How to order

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Product codes & specifications
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Product codeSpec
2300d: 10 mm | D: 35 mm | B: 17 mm | Cr: 9.2 kN | C0r: 2.01 kN | Grease speed: 18000 rpm
2301d: 12 mm | D: 37 mm | B: 17 mm | Cr: 12.1 kN | C0r: 2.73 kN | Grease speed: 17000 rpm
2302d: 15 mm | D: 42 mm | B: 17 mm | Cr: 12.3 kN | C0r: 2.91 kN | Grease speed: 14000 rpm
2303d: 17 mm | D: 47 mm | B: 19 mm | Cr: 14.7 kN | C0r: 3.55 kN | Grease speed: 13000 rpm
2304d: 20 mm | D: 52 mm | B: 21 mm | Cr: 18.5 kN | C0r: 4.7 kN | Grease speed: 11000 rpm
2304Kd: 20 mm | D: 52 mm | B: 21 mm | Cr: 18.5 kN | C0r: 4.7 kN | Grease speed: 11000 rpm
2305d: 25 mm | D: 62 mm | B: 24 mm | Cr: 24.9 kN | C0r: 6.6 kN | Grease speed: 9500 rpm
2305Kd: 25 mm | D: 62 mm | B: 24 mm | Cr: 24.9 kN | C0r: 6.6 kN | Grease speed: 9500 rpm
2306d: 30 mm | D: 72 mm | B: 27 mm | Cr: 32 kN | C0r: 8.75 kN | Grease speed: 8000 rpm
2306Kd: 30 mm | D: 72 mm | B: 27 mm | Cr: 32 kN | C0r: 8.75 kN | Grease speed: 8000 rpm
2307d: 35 mm | D: 80 mm | B: 31 mm | Cr: 40 kN | C0r: 11.3 kN | Grease speed: 7100 rpm
2307Kd: 35 mm | D: 80 mm | B: 31 mm | Cr: 40 kN | C0r: 11.3 kN | Grease speed: 7100 rpm
2308d: 40 mm | D: 90 mm | B: 33 mm | Cr: 45.5 kN | C0r: 13.5 kN | Grease speed: 6300 rpm
2308Kd: 40 mm | D: 90 mm | B: 33 mm | Cr: 45.5 kN | C0r: 13.5 kN | Grease speed: 6300 rpm
2309d: 45 mm | D: 100 mm | B: 36 mm | Cr: 55 kN | C0r: 16.7 kN | Grease speed: 5600 rpm
2309Kd: 45 mm | D: 100 mm | B: 36 mm | Cr: 55 kN | C0r: 16.7 kN | Grease speed: 5600 rpm
2310d: 50 mm | D: 110 mm | B: 40 mm | Cr: 65 kN | C0r: 20.2 kN | Grease speed: 5000 rpm
2310Kd: 50 mm | D: 110 mm | B: 40 mm | Cr: 65 kN | C0r: 20.2 kN | Grease speed: 5000 rpm
2311d: 55 mm | D: 120 mm | B: 43 mm | Cr: 76.5 kN | C0r: 24 kN | Grease speed: 4800 rpm
2311Kd: 55 mm | D: 120 mm | B: 43 mm | Cr: 76.5 kN | C0r: 24 kN | Grease speed: 4800 rpm
2312d: 60 mm | D: 130 mm | B: 46 mm | Cr: 88.5 kN | C0r: 28.3 kN | Grease speed: 4300 rpm
2312Kd: 60 mm | D: 130 mm | B: 46 mm | Cr: 88.5 kN | C0r: 28.3 kN | Grease speed: 4300 rpm
2313d: 65 mm | D: 140 mm | B: 48 mm | Cr: 97 kN | C0r: 32.5 kN | Grease speed: 3800 rpm
2313Kd: 65 mm | D: 140 mm | B: 48 mm | Cr: 97 kN | C0r: 32.5 kN | Grease speed: 3800 rpm
2314d: 70 mm | D: 150 mm | B: 51 mm | Cr: 111 kN | C0r: 37.5 kN | Grease speed: 3600 rpm
2315d: 75 mm | D: 160 mm | B: 55 mm | Cr: 125 kN | C0r: 43 kN | Grease speed: 3400 rpm
2315Kd: 75 mm | D: 160 mm | B: 55 mm | Cr: 125 kN | C0r: 43 kN | Grease speed: 3400 rpm
2316d: 80 mm | D: 170 mm | B: 58 mm | Cr: 130 kN | C0r: 45 kN | Grease speed: 3200 rpm
2316Kd: 80 mm | D: 170 mm | B: 58 mm | Cr: 130 kN | C0r: 45 kN | Grease speed: 3200 rpm
2317d: 85 mm | D: 180 mm | B: 60 mm | Cr: 142 kN | C0r: 51.5 kN | Grease speed: 3000 rpm
2317Kd: 85 mm | D: 180 mm | B: 60 mm | Cr: 142 kN | C0r: 51.5 kN | Grease speed: 3000 rpm
2318d: 90 mm | D: 190 mm | B: 64 mm | Cr: 154 kN | C0r: 57.5 kN | Grease speed: 2800 rpm
2318Kd: 90 mm | D: 190 mm | B: 64 mm | Cr: 154 kN | C0r: 57.5 kN | Grease speed: 2800 rpm
2319d: 95 mm | D: 200 mm | B: 67 mm | Cr: 161 kN | C0r: 64.5 kN | Grease speed: 2800 rpm
2319Kd: 95 mm | D: 200 mm | B: 67 mm | Cr: 161 kN | C0r: 64.5 kN | Grease speed: 2800 rpm
2320d: 100 mm | D: 215 mm | B: 73 mm | Cr: 187 kN | C0r: 79 kN | Grease speed: 2400 rpm
2320Kd: 100 mm | D: 215 mm | B: 73 mm | Cr: 187 kN | C0r: 79 kN | Grease speed: 2400 rpm
2321d: 105 mm | D: 225 mm | B: 7 mm | Cr: 200 kN | C0r: 87 kN | Grease speed: 2400 rpm
2322d: 110 mm | D: 240 mm | B: 80 mm | Cr: 211 kN | C0r: 94.5 kN | Grease speed: 2200 rpm
2322Kd: 110 mm | D: 240 mm | B: 80 mm | Cr: 211 kN | C0r: 94.5 kN | Grease speed: 2200 rpm

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