• NACHI 213 Series Spherical Roller Bearings (Cylindrical, K Bore)
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NACHI 213 Series Spherical Roller Bearings (Cylindrical, K Bore)

NACHI 213 Series Spherical Roller Bearings (Cylindrical, K Bore)

NACHI 213 series double-row spherical roller bearings, bore 20 to 120 mm, with cylindrical bore or tapered bore (suffix K = 1:12 taper, K30 = 1:30 taper).

Key features

  • Self-aligning design for applications where misalignment can arise from mounting errors or shaft deflection
  • Maximum permissible misalignment of about 2 degrees under general service conditions
  • High radial load capacity with axial load capacity in both directions
  • Outer rings are often made with lubrication holes and groove (W33) for feeding lubricant
  • Each size listed with cylindrical bore and tapered bore designation (K or K30)

Specifications

Brand NACHI
Series 213
Bearing type Double-row spherical roller bearing
Bore range 20 - 120 mm
Bore Cylindrical or tapered (K 1:12, K30 1:30)
Mass Reference mass of cylindrical-bore bearing
Load ratings Basic dynamic Cr / static C0r
Source NACHI Spherical Roller Bearings and Spherical Roller Thrust Bearings (B1032E-5), p. 10-15
21304E d: 20 mm | D: 52 mm | B: 15 mm | Cr: 47 kN | C0r: 33.5 kN | Mass: 0.18 kg
21304EK d: 20 mm | D: 52 mm | B: 15 mm | Cr: 47 kN | C0r: 33.5 kN | Mass: 0.18 kg
21305E d: 25 mm | D: 62 mm | B: 17 mm | Cr: 64 kN | C0r: 47.5 kN | Mass: 0.29 kg
21305EK d: 25 mm | D: 62 mm | B: 17 mm | Cr: 64 kN | C0r: 47.5 kN | Mass: 0.29 kg
21306E d: 30 mm | D: 72 mm | B: 19 mm | Cr: 83 kN | C0r: 62.5 kN | Mass: 0.43 kg
21306EK d: 30 mm | D: 72 mm | B: 19 mm | Cr: 83 kN | C0r: 62.5 kN | Mass: 0.43 kg
21306AX d: 30 mm | D: 72 mm | B: 19 mm | Cr: 73 kN | C0r: 50.9 kN | Mass: 0.43 kg
21306AXK d: 30 mm | D: 72 mm | B: 19 mm | Cr: 73 kN | C0r: 50.9 kN | Mass: 0.43 kg
21307E d: 35 mm | D: 80 mm | B: 21 mm | Cr: 96 kN | C0r: 76 kN | Mass: 0.57 kg
21307EK d: 35 mm | D: 80 mm | B: 21 mm | Cr: 96 kN | C0r: 76 kN | Mass: 0.57 kg
21307AX d: 35 mm | D: 80 mm | B: 21 mm | Cr: 89 kN | C0r: 63.1 kN | Mass: 0.56 kg
21307AXK d: 35 mm | D: 80 mm | B: 21 mm | Cr: 89 kN | C0r: 63.1 kN | Mass: 0.56 kg
21308E d: 40 mm | D: 90 mm | B: 23 mm | Cr: 119 kN | C0r: 95.5 kN | Mass: 0.78 kg
21308EK d: 40 mm | D: 90 mm | B: 23 mm | Cr: 119 kN | C0r: 95.5 kN | Mass: 0.78 kg
21308AX d: 40 mm | D: 90 mm | B: 23 mm | Cr: 116 kN | C0r: 84.4 kN | Mass: 0.79 kg
21308AXK d: 40 mm | D: 90 mm | B: 23 mm | Cr: 116 kN | C0r: 84.4 kN | Mass: 0.79 kg
21309E d: 45 mm | D: 100 mm | B: 25 mm | Cr: 150 kN | C0r: 124 kN | Mass: 1.05 kg
21309EK d: 45 mm | D: 100 mm | B: 25 mm | Cr: 150 kN | C0r: 124 kN | Mass: 1.05 kg
21309AX d: 45 mm | D: 100 mm | B: 25 mm | Cr: 143 kN | C0r: 105 kN | Mass: 1.05 kg
21309AXK d: 45 mm | D: 100 mm | B: 25 mm | Cr: 143 kN | C0r: 105 kN | Mass: 1.05 kg
21310E d: 50 mm | D: 110 mm | B: 27 mm | Cr: 178 kN | C0r: 151 kN | Mass: 1.36 kg
21310EK d: 50 mm | D: 110 mm | B: 27 mm | Cr: 178 kN | C0r: 151 kN | Mass: 1.36 kg
21310AX d: 50 mm | D: 110 mm | B: 27 mm | Cr: 170 kN | C0r: 127 kN | Mass: 1.36 kg
21310AXK d: 50 mm | D: 110 mm | B: 27 mm | Cr: 170 kN | C0r: 127 kN | Mass: 1.36 kg
21311EX1 d: 55 mm | D: 120 mm | B: 29 mm | Cr: 200 kN | C0r: 165 kN | Mass: 1.70 kg
21311EX1K d: 55 mm | D: 120 mm | B: 29 mm | Cr: 200 kN | C0r: 165 kN | Mass: 1.70 kg
21311AX d: 55 mm | D: 120 mm | B: 29 mm | Cr: 206 kN | C0r: 171 kN | Mass: 1.77 kg
21311AXK d: 55 mm | D: 120 mm | B: 29 mm | Cr: 206 kN | C0r: 171 kN | Mass: 1.77 kg
21312EX1 d: 60 mm | D: 130 mm | B: 31 mm | Cr: 238 kN | C0r: 193 kN | Mass: 2.10 kg
21312EX1K d: 60 mm | D: 130 mm | B: 31 mm | Cr: 238 kN | C0r: 193 kN | Mass: 2.10 kg
21312AX d: 60 mm | D: 130 mm | B: 31 mm | Cr: 228 kN | C0r: 192 kN | Mass: 2.19 kg
21312AXK d: 60 mm | D: 130 mm | B: 31 mm | Cr: 228 kN | C0r: 192 kN | Mass: 2.19 kg
21313EX1 d: 65 mm | D: 140 mm | B: 33 mm | Cr: 270 kN | C0r: 232 kN | Mass: 2.60 kg
21313EX1K d: 65 mm | D: 140 mm | B: 33 mm | Cr: 270 kN | C0r: 232 kN | Mass: 2.60 kg
21313AX d: 65 mm | D: 140 mm | B: 33 mm | Cr: 261 kN | C0r: 222 kN | Mass: 2.69 kg
21313AXK d: 65 mm | D: 140 mm | B: 33 mm | Cr: 261 kN | C0r: 222 kN | Mass: 2.69 kg
21314EX1 d: 70 mm | D: 150 mm | B: 35 mm | Cr: 310 kN | C0r: 260 kN | Mass: 3.10 kg
21314EX1K d: 70 mm | D: 150 mm | B: 35 mm | Cr: 310 kN | C0r: 260 kN | Mass: 3.10 kg
21314AX d: 70 mm | D: 150 mm | B: 35 mm | Cr: 305 kN | C0r: 268 kN | Mass: 3.30 kg
21314AXK d: 70 mm | D: 150 mm | B: 35 mm | Cr: 305 kN | C0r: 268 kN | Mass: 3.30 kg
21315EX1 d: 75 mm | D: 160 mm | B: 37 mm | Cr: 340 kN | C0r: 298 kN | Mass: 3.80 kg
21315EX1K d: 75 mm | D: 160 mm | B: 37 mm | Cr: 340 kN | C0r: 298 kN | Mass: 3.80 kg
21315AX d: 75 mm | D: 160 mm | B: 37 mm | Cr: 325 kN | C0r: 286 kN | Mass: 3.95 kg
21315AXK d: 75 mm | D: 160 mm | B: 37 mm | Cr: 325 kN | C0r: 286 kN | Mass: 3.95 kg
21316EX1 d: 80 mm | D: 170 mm | B: 39 mm | Cr: 380 kN | C0r: 339 kN | Mass: 4.50 kg
21316EX1K d: 80 mm | D: 170 mm | B: 39 mm | Cr: 380 kN | C0r: 339 kN | Mass: 4.50 kg
21316AX d: 80 mm | D: 170 mm | B: 39 mm | Cr: 355 kN | C0r: 318 kN | Mass: 4.67 kg
21316AXK d: 80 mm | D: 170 mm | B: 39 mm | Cr: 355 kN | C0r: 318 kN | Mass: 4.67 kg
21317EX1 d: 85 mm | D: 180 mm | B: 41 mm | Cr: 415 kN | C0r: 372 kN | Mass: 5.30 kg
21317EX1K d: 85 mm | D: 180 mm | B: 41 mm | Cr: 415 kN | C0r: 372 kN | Mass: 5.30 kg
21317AX d: 85 mm | D: 180 mm | B: 41 mm | Cr: 400 kN | C0r: 364 kN | Mass: 5.52 kg
21317AXK d: 85 mm | D: 180 mm | B: 41 mm | Cr: 400 kN | C0r: 364 kN | Mass: 5.52 kg
21318EX1 d: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 410 kN | Mass: 6.10 kg
21318EX1K d: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 410 kN | Mass: 6.10 kg
21318AX d: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 416 kN | Mass: 6.45 kg
21318AXK d: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 416 kN | Mass: 6.45 kg
21319EX1 d: 95 mm | D: 200 mm | B: 45 mm | Cr: 500 kN | C0r: 461 kN | Mass: 7.10 kg
21319EX1K d: 95 mm | D: 200 mm | B: 45 mm | Cr: 500 kN | C0r: 461 kN | Mass: 7.10 kg
21319AX d: 95 mm | D: 200 mm | B: 45 mm | Cr: 495 kN | C0r: 450 kN | Mass: 7.44 kg
21319AXK d: 95 mm | D: 200 mm | B: 45 mm | Cr: 495 kN | C0r: 450 kN | Mass: 7.44 kg
21320EX1 d: 100 mm | D: 215 mm | B: 47 mm | Cr: 580 kN | C0r: 524 kN | Mass: 8.70 kg
21320EX1K d: 100 mm | D: 215 mm | B: 47 mm | Cr: 580 kN | C0r: 524 kN | Mass: 8.70 kg
21320AX d: 100 mm | D: 215 mm | B: 47 mm | Cr: 545 kN | C0r: 488 kN | Mass: 9.06 kg
21320AXK d: 100 mm | D: 215 mm | B: 47 mm | Cr: 545 kN | C0r: 488 kN | Mass: 9.06 kg
21322EX1 d: 110 mm | D: 240 mm | B: 50 mm | Cr: 675 kN | C0r: 635 kN | Mass: 11.6 kg
21322EX1K d: 110 mm | D: 240 mm | B: 50 mm | Cr: 675 kN | C0r: 635 kN | Mass: 11.6 kg
21322AX d: 110 mm | D: 240 mm | B: 50 mm | Cr: 655 kN | C0r: 601 kN | Mass: 12.2 kg
21322AXK d: 110 mm | D: 240 mm | B: 50 mm | Cr: 655 kN | C0r: 601 kN | Mass: 12.2 kg
21324E d: 120 mm | D: 260 mm | B: 55 mm | Cr: 790 kN | C0r: 765 kN | Mass: 15.3 kg
21324EK d: 120 mm | D: 260 mm | B: 55 mm | Cr: 790 kN | C0r: 765 kN | Mass: 15.3 kg
Spherical Roller BearingsNACHI
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NACHI 213 Series Spherical Roller Bearings (Cylindrical, K Bore)

Brand NACHI·Spherical Roller Bearings

Available part numbers (70)

21304E, 21304EK, 21305E, 21305EK, 21306E, 21306EK, 21306AX, 21306AXK, 21307E, 21307EK + 60 more — see full table ↓

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Product codeSpec
21304Ed: 20 mm | D: 52 mm | B: 15 mm | Cr: 47 kN | C0r: 33.5 kN | Mass: 0.18 kg
21304EKd: 20 mm | D: 52 mm | B: 15 mm | Cr: 47 kN | C0r: 33.5 kN | Mass: 0.18 kg
21305Ed: 25 mm | D: 62 mm | B: 17 mm | Cr: 64 kN | C0r: 47.5 kN | Mass: 0.29 kg
21305EKd: 25 mm | D: 62 mm | B: 17 mm | Cr: 64 kN | C0r: 47.5 kN | Mass: 0.29 kg
21306Ed: 30 mm | D: 72 mm | B: 19 mm | Cr: 83 kN | C0r: 62.5 kN | Mass: 0.43 kg
21306EKd: 30 mm | D: 72 mm | B: 19 mm | Cr: 83 kN | C0r: 62.5 kN | Mass: 0.43 kg
21306AXd: 30 mm | D: 72 mm | B: 19 mm | Cr: 73 kN | C0r: 50.9 kN | Mass: 0.43 kg
21306AXKd: 30 mm | D: 72 mm | B: 19 mm | Cr: 73 kN | C0r: 50.9 kN | Mass: 0.43 kg
21307Ed: 35 mm | D: 80 mm | B: 21 mm | Cr: 96 kN | C0r: 76 kN | Mass: 0.57 kg
21307EKd: 35 mm | D: 80 mm | B: 21 mm | Cr: 96 kN | C0r: 76 kN | Mass: 0.57 kg
21307AXd: 35 mm | D: 80 mm | B: 21 mm | Cr: 89 kN | C0r: 63.1 kN | Mass: 0.56 kg
21307AXKd: 35 mm | D: 80 mm | B: 21 mm | Cr: 89 kN | C0r: 63.1 kN | Mass: 0.56 kg
21308Ed: 40 mm | D: 90 mm | B: 23 mm | Cr: 119 kN | C0r: 95.5 kN | Mass: 0.78 kg
21308EKd: 40 mm | D: 90 mm | B: 23 mm | Cr: 119 kN | C0r: 95.5 kN | Mass: 0.78 kg
21308AXd: 40 mm | D: 90 mm | B: 23 mm | Cr: 116 kN | C0r: 84.4 kN | Mass: 0.79 kg
21308AXKd: 40 mm | D: 90 mm | B: 23 mm | Cr: 116 kN | C0r: 84.4 kN | Mass: 0.79 kg
21309Ed: 45 mm | D: 100 mm | B: 25 mm | Cr: 150 kN | C0r: 124 kN | Mass: 1.05 kg
21309EKd: 45 mm | D: 100 mm | B: 25 mm | Cr: 150 kN | C0r: 124 kN | Mass: 1.05 kg
21309AXd: 45 mm | D: 100 mm | B: 25 mm | Cr: 143 kN | C0r: 105 kN | Mass: 1.05 kg
21309AXKd: 45 mm | D: 100 mm | B: 25 mm | Cr: 143 kN | C0r: 105 kN | Mass: 1.05 kg
21310Ed: 50 mm | D: 110 mm | B: 27 mm | Cr: 178 kN | C0r: 151 kN | Mass: 1.36 kg
21310EKd: 50 mm | D: 110 mm | B: 27 mm | Cr: 178 kN | C0r: 151 kN | Mass: 1.36 kg
21310AXd: 50 mm | D: 110 mm | B: 27 mm | Cr: 170 kN | C0r: 127 kN | Mass: 1.36 kg
21310AXKd: 50 mm | D: 110 mm | B: 27 mm | Cr: 170 kN | C0r: 127 kN | Mass: 1.36 kg
21311EX1d: 55 mm | D: 120 mm | B: 29 mm | Cr: 200 kN | C0r: 165 kN | Mass: 1.70 kg
21311EX1Kd: 55 mm | D: 120 mm | B: 29 mm | Cr: 200 kN | C0r: 165 kN | Mass: 1.70 kg
21311AXd: 55 mm | D: 120 mm | B: 29 mm | Cr: 206 kN | C0r: 171 kN | Mass: 1.77 kg
21311AXKd: 55 mm | D: 120 mm | B: 29 mm | Cr: 206 kN | C0r: 171 kN | Mass: 1.77 kg
21312EX1d: 60 mm | D: 130 mm | B: 31 mm | Cr: 238 kN | C0r: 193 kN | Mass: 2.10 kg
21312EX1Kd: 60 mm | D: 130 mm | B: 31 mm | Cr: 238 kN | C0r: 193 kN | Mass: 2.10 kg
21312AXd: 60 mm | D: 130 mm | B: 31 mm | Cr: 228 kN | C0r: 192 kN | Mass: 2.19 kg
21312AXKd: 60 mm | D: 130 mm | B: 31 mm | Cr: 228 kN | C0r: 192 kN | Mass: 2.19 kg
21313EX1d: 65 mm | D: 140 mm | B: 33 mm | Cr: 270 kN | C0r: 232 kN | Mass: 2.60 kg
21313EX1Kd: 65 mm | D: 140 mm | B: 33 mm | Cr: 270 kN | C0r: 232 kN | Mass: 2.60 kg
21313AXd: 65 mm | D: 140 mm | B: 33 mm | Cr: 261 kN | C0r: 222 kN | Mass: 2.69 kg
21313AXKd: 65 mm | D: 140 mm | B: 33 mm | Cr: 261 kN | C0r: 222 kN | Mass: 2.69 kg
21314EX1d: 70 mm | D: 150 mm | B: 35 mm | Cr: 310 kN | C0r: 260 kN | Mass: 3.10 kg
21314EX1Kd: 70 mm | D: 150 mm | B: 35 mm | Cr: 310 kN | C0r: 260 kN | Mass: 3.10 kg
21314AXd: 70 mm | D: 150 mm | B: 35 mm | Cr: 305 kN | C0r: 268 kN | Mass: 3.30 kg
21314AXKd: 70 mm | D: 150 mm | B: 35 mm | Cr: 305 kN | C0r: 268 kN | Mass: 3.30 kg
21315EX1d: 75 mm | D: 160 mm | B: 37 mm | Cr: 340 kN | C0r: 298 kN | Mass: 3.80 kg
21315EX1Kd: 75 mm | D: 160 mm | B: 37 mm | Cr: 340 kN | C0r: 298 kN | Mass: 3.80 kg
21315AXd: 75 mm | D: 160 mm | B: 37 mm | Cr: 325 kN | C0r: 286 kN | Mass: 3.95 kg
21315AXKd: 75 mm | D: 160 mm | B: 37 mm | Cr: 325 kN | C0r: 286 kN | Mass: 3.95 kg
21316EX1d: 80 mm | D: 170 mm | B: 39 mm | Cr: 380 kN | C0r: 339 kN | Mass: 4.50 kg
21316EX1Kd: 80 mm | D: 170 mm | B: 39 mm | Cr: 380 kN | C0r: 339 kN | Mass: 4.50 kg
21316AXd: 80 mm | D: 170 mm | B: 39 mm | Cr: 355 kN | C0r: 318 kN | Mass: 4.67 kg
21316AXKd: 80 mm | D: 170 mm | B: 39 mm | Cr: 355 kN | C0r: 318 kN | Mass: 4.67 kg
21317EX1d: 85 mm | D: 180 mm | B: 41 mm | Cr: 415 kN | C0r: 372 kN | Mass: 5.30 kg
21317EX1Kd: 85 mm | D: 180 mm | B: 41 mm | Cr: 415 kN | C0r: 372 kN | Mass: 5.30 kg
21317AXd: 85 mm | D: 180 mm | B: 41 mm | Cr: 400 kN | C0r: 364 kN | Mass: 5.52 kg
21317AXKd: 85 mm | D: 180 mm | B: 41 mm | Cr: 400 kN | C0r: 364 kN | Mass: 5.52 kg
21318EX1d: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 410 kN | Mass: 6.10 kg
21318EX1Kd: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 410 kN | Mass: 6.10 kg
21318AXd: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 416 kN | Mass: 6.45 kg
21318AXKd: 90 mm | D: 190 mm | B: 43 mm | Cr: 460 kN | C0r: 416 kN | Mass: 6.45 kg
21319EX1d: 95 mm | D: 200 mm | B: 45 mm | Cr: 500 kN | C0r: 461 kN | Mass: 7.10 kg
21319EX1Kd: 95 mm | D: 200 mm | B: 45 mm | Cr: 500 kN | C0r: 461 kN | Mass: 7.10 kg
21319AXd: 95 mm | D: 200 mm | B: 45 mm | Cr: 495 kN | C0r: 450 kN | Mass: 7.44 kg
21319AXKd: 95 mm | D: 200 mm | B: 45 mm | Cr: 495 kN | C0r: 450 kN | Mass: 7.44 kg
21320EX1d: 100 mm | D: 215 mm | B: 47 mm | Cr: 580 kN | C0r: 524 kN | Mass: 8.70 kg
21320EX1Kd: 100 mm | D: 215 mm | B: 47 mm | Cr: 580 kN | C0r: 524 kN | Mass: 8.70 kg
21320AXd: 100 mm | D: 215 mm | B: 47 mm | Cr: 545 kN | C0r: 488 kN | Mass: 9.06 kg
21320AXKd: 100 mm | D: 215 mm | B: 47 mm | Cr: 545 kN | C0r: 488 kN | Mass: 9.06 kg
21322EX1d: 110 mm | D: 240 mm | B: 50 mm | Cr: 675 kN | C0r: 635 kN | Mass: 11.6 kg
21322EX1Kd: 110 mm | D: 240 mm | B: 50 mm | Cr: 675 kN | C0r: 635 kN | Mass: 11.6 kg
21322AXd: 110 mm | D: 240 mm | B: 50 mm | Cr: 655 kN | C0r: 601 kN | Mass: 12.2 kg
21322AXKd: 110 mm | D: 240 mm | B: 50 mm | Cr: 655 kN | C0r: 601 kN | Mass: 12.2 kg
21324Ed: 120 mm | D: 260 mm | B: 55 mm | Cr: 790 kN | C0r: 765 kN | Mass: 15.3 kg
21324EKd: 120 mm | D: 260 mm | B: 55 mm | Cr: 790 kN | C0r: 765 kN | Mass: 15.3 kg

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