• NSK UC / UK / EW / UB / EN Insert Bearings for Bearing Units
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NSK UC / UK / EW / UB / EN Insert Bearings for Bearing Units

NSK UC / UK / EW / UB / EN Insert Bearings for Bearing Units

NSK insert ball bearings with spherical outer ring for ball bearing units: UC (set screw), UK (tapered bore for adapter sleeve), EW and EN (eccentric collar) and UB (light set screw) types.

Key features

  • Spherical outer ring for self-alignment in the housing
  • Sealed and pre-greased for maintenance-reduced operation
  • Set-screw, eccentric-collar and adapter-sleeve locking types
  • Replacement inserts for NSK UCP, UCF, UCFL, UCT, EWP, UKP and pressed steel units

Specifications

Product Insert ball bearing
Outer ring Spherical
Seals Both sides
Lubrication Pre-greased
Bore d 12-140 mm
Source NSK Rolling Bearings Catalogue (Part 3), p. 282-299
UC 201 Bore d: 12 mm | Locking: Set screw | Cr: 12.8 kN
UC 202 Bore d: 15 mm | Locking: Set screw | Cr: 12.8 kN
UC 203 Bore d: 17 mm | Locking: Set screw | Cr: 12.8 kN
UC 204 Bore d: 20 mm | Locking: Set screw | Cr: 12.8 kN
UC 205 Bore d: 25 mm | Locking: Set screw | Cr: 14 kN
UC 206 Bore d: 30 mm | Locking: Set screw | Cr: 19.5 kN
UC 207 Bore d: 35 mm | Locking: Set screw | Cr: 25.7 kN
UC 208 Bore d: 40 mm | Locking: Set screw | Cr: 29.1 kN
UC 209 Bore d: 45 mm | Locking: Set screw | Cr: 31.5 kN
UC 210 Bore d: 50 mm | Locking: Set screw | Cr: 35 kN
UC 211 Bore d: 55 mm | Locking: Set screw | Cr: 43.5 kN
UC 212 Bore d: 60 mm | Locking: Set screw | Cr: 52.5 kN
UC 213 Bore d: 65 mm | Locking: Set screw | Cr: 57.5 kN
UC 214 Bore d: 70 mm | Locking: Set screw | Cr: 62 kN
UC 215 Bore d: 75 mm | Locking: Set screw | Cr: 66 kN
UC 216 Bore d: 80 mm | Locking: Set screw | Cr: 72.5 kN
UC 217 Bore d: 85 mm | Locking: Set screw | Cr: 84 kN
UC 218 Bore d: 90 mm | Locking: Set screw | Cr: 96 kN
UC 305 Bore d: 25 mm | Locking: Set screw | Cr: 20.6 kN
UC 306 Bore d: 30 mm | Locking: Set screw | Cr: 26.7 kN
UC 307 Bore d: 35 mm | Locking: Set screw | Cr: 33.5 kN
UC 308 Bore d: 40 mm | Locking: Set screw | Cr: 40.5 kN
UC 309 Bore d: 45 mm | Locking: Set screw | Cr: 53 kN
UC 310 Bore d: 50 mm | Locking: Set screw | Cr: 62 kN
UC 311 Bore d: 55 mm | Locking: Set screw | Cr: 71.5 kN
UC 312 Bore d: 60 mm | Locking: Set screw | Cr: 82 kN
UC 313 Bore d: 65 mm | Locking: Set screw | Cr: 92.5 kN
UC 314 Bore d: 70 mm | Locking: Set screw | Cr: 104 kN
UC 315 Bore d: 75 mm | Locking: Set screw | Cr: 113 kN
UC 316 Bore d: 80 mm | Locking: Set screw | Cr: 123 kN
UC 317 Bore d: 85 mm | Locking: Set screw | Cr: 133 kN
UC 318 Bore d: 90 mm | Locking: Set screw | Cr: 143 kN
UC 319 Bore d: 95 mm | Locking: Set screw | Cr: 153 kN
UC 320 Bore d: 100 mm | Locking: Set screw | Cr: 173 kN
UC 321 Bore d: 105 mm | Locking: Set screw | Cr: 184 kN
UC 322 Bore d: 110 mm | Locking: Set screw | Cr: 205 kN
UC 324 Bore d: 120 mm | Locking: Set screw | Cr: 207 kN
UC 326 Bore d: 130 mm | Locking: Set screw | Cr: 229 kN
UC 328 Bore d: 140 mm | Locking: Set screw | Cr: 253 kN
UK 205 Bore d: 25 mm | Locking: Tapered bore (adapter) | Cr: 14 kN
UK 206 Bore d: 30 mm | Locking: Tapered bore (adapter) | Cr: 19.5 kN
UK 207 Bore d: 35 mm | Locking: Tapered bore (adapter) | Cr: 25.7 kN
UK 208 Bore d: 40 mm | Locking: Tapered bore (adapter) | Cr: 29.1 kN
UK 209 Bore d: 45 mm | Locking: Tapered bore (adapter) | Cr: 31.5 kN
UK 210 Bore d: 50 mm | Locking: Tapered bore (adapter) | Cr: 35 kN
UK 211 Bore d: 55 mm | Locking: Tapered bore (adapter) | Cr: 43.5 kN
UK 212 Bore d: 60 mm | Locking: Tapered bore (adapter) | Cr: 52.5 kN
UK 213 Bore d: 65 mm | Locking: Tapered bore (adapter) | Cr: 57.5 kN
UK 215 Bore d: 75 mm | Locking: Tapered bore (adapter) | Cr: 66 kN
UK 315 Bore d: 75 mm | Locking: Tapered bore (adapter) | Cr: 113 kN
UK 316 Bore d: 80 mm | Locking: Tapered bore (adapter) | Cr: 123 kN
UK 317 Bore d: 85 mm | Locking: Tapered bore (adapter) | Cr: 133 kN
UK 318 Bore d: 90 mm | Locking: Tapered bore (adapter) | Cr: 143 kN
UK 319 Bore d: 95 mm | Locking: Tapered bore (adapter) | Cr: 153 kN
UK 320 Bore d: 100 mm | Locking: Tapered bore (adapter) | Cr: 173 kN
UK 322 Bore d: 110 mm | Locking: Tapered bore (adapter) | Cr: 205 kN
UK 324 Bore d: 120 mm | Locking: Tapered bore (adapter) | Cr: 207 kN
UK 326 Bore d: 130 mm | Locking: Tapered bore (adapter) | Cr: 229 kN
UK 328 Bore d: 140 mm | Locking: Tapered bore (adapter) | Cr: 253 kN
EW 204 Bore d: 20 mm | Locking: Eccentric collar | Cr: 12.8 kN
EW 205 Bore d: 25 mm | Locking: Eccentric collar | Cr: 14 kN
EW 206 Bore d: 30 mm | Locking: Eccentric collar | Cr: 19.5 kN
EW 207 Bore d: 35 mm | Locking: Eccentric collar | Cr: 25.7 kN
EW 208 Bore d: 40 mm | Locking: Eccentric collar | Cr: 29.1 kN
EW 209 Bore d: 45 mm | Locking: Eccentric collar | Cr: 31.5 kN
EW 210 Bore d: 50 mm | Locking: Eccentric collar | Cr: 35 kN
EW 211 Bore d: 55 mm | Locking: Eccentric collar | Cr: 43.5 kN
EW 212 Bore d: 60 mm | Locking: Eccentric collar | Cr: 52.5 kN
EW 305 Bore d: 25 mm | Locking: Eccentric collar | Cr: 20.6 kN
EW 306 Bore d: 30 mm | Locking: Eccentric collar | Cr: 26.7 kN
EW 307 Bore d: 35 mm | Locking: Eccentric collar | Cr: 33.5 kN
EW 308 Bore d: 40 mm | Locking: Eccentric collar | Cr: 40.5 kN
EW 309 Bore d: 45 mm | Locking: Eccentric collar | Cr: 53 kN
EW 310 Bore d: 50 mm | Locking: Eccentric collar | Cr: 62 kN
EW 311 Bore d: 55 mm | Locking: Eccentric collar | Cr: 71.5 kN
EW 312 Bore d: 60 mm | Locking: Eccentric collar | Cr: 82 kN
EW 313 Bore d: 65 mm | Locking: Eccentric collar | Cr: 92.5 kN
UB 201 Bore d: 12 mm | Locking: Set screw, light | Cr: 9.55 kN
UB 202 Bore d: 15 mm | Locking: Set screw, light | Cr: 9.55 kN
UB 203 Bore d: 17 mm | Locking: Set screw, light | Cr: 9.55 kN
UB 204 Bore d: 20 mm | Locking: Set screw, light | Cr: 12.8 kN
UB 205 Bore d: 25 mm | Locking: Set screw, light | Cr: 14 kN
UB 206 Bore d: 30 mm | Locking: Set screw, light | Cr: 19.5 kN
UB 207 Bore d: 35 mm | Locking: Set screw, light | Cr: 25.7 kN
EN 201 Bore d: 12 mm | Locking: Eccentric collar, light | Cr: 9.55 kN
EN 202 Bore d: 15 mm | Locking: Eccentric collar, light | Cr: 9.55 kN
EN 203 Bore d: 17 mm | Locking: Eccentric collar, light | Cr: 9.55 kN
EN 204 Bore d: 20 mm | Locking: Eccentric collar, light | Cr: 12.8 kN
EN 205 Bore d: 25 mm | Locking: Eccentric collar, light | Cr: 14 kN
EN 206 Bore d: 30 mm | Locking: Eccentric collar, light | Cr: 19.5 kN
EN 207 Bore d: 35 mm | Locking: Eccentric collar, light | Cr: 25.7 kN
Insert BearingsNSK
91 product codes available in this family
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NSK UC / UK / EW / UB / EN Insert Bearings for Bearing Units

Brand NSK·Insert Bearings

Available part numbers (91)

UC 201, UC 202, UC 203, UC 204, UC 205, UC 206, UC 207, UC 208, UC 209, UC 210 + 81 more — see full table ↓

How to order

Send the NSK part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
UC 201Bore d: 12 mm | Locking: Set screw | Cr: 12.8 kN
UC 202Bore d: 15 mm | Locking: Set screw | Cr: 12.8 kN
UC 203Bore d: 17 mm | Locking: Set screw | Cr: 12.8 kN
UC 204Bore d: 20 mm | Locking: Set screw | Cr: 12.8 kN
UC 205Bore d: 25 mm | Locking: Set screw | Cr: 14 kN
UC 206Bore d: 30 mm | Locking: Set screw | Cr: 19.5 kN
UC 207Bore d: 35 mm | Locking: Set screw | Cr: 25.7 kN
UC 208Bore d: 40 mm | Locking: Set screw | Cr: 29.1 kN
UC 209Bore d: 45 mm | Locking: Set screw | Cr: 31.5 kN
UC 210Bore d: 50 mm | Locking: Set screw | Cr: 35 kN
UC 211Bore d: 55 mm | Locking: Set screw | Cr: 43.5 kN
UC 212Bore d: 60 mm | Locking: Set screw | Cr: 52.5 kN
UC 213Bore d: 65 mm | Locking: Set screw | Cr: 57.5 kN
UC 214Bore d: 70 mm | Locking: Set screw | Cr: 62 kN
UC 215Bore d: 75 mm | Locking: Set screw | Cr: 66 kN
UC 216Bore d: 80 mm | Locking: Set screw | Cr: 72.5 kN
UC 217Bore d: 85 mm | Locking: Set screw | Cr: 84 kN
UC 218Bore d: 90 mm | Locking: Set screw | Cr: 96 kN
UC 305Bore d: 25 mm | Locking: Set screw | Cr: 20.6 kN
UC 306Bore d: 30 mm | Locking: Set screw | Cr: 26.7 kN
UC 307Bore d: 35 mm | Locking: Set screw | Cr: 33.5 kN
UC 308Bore d: 40 mm | Locking: Set screw | Cr: 40.5 kN
UC 309Bore d: 45 mm | Locking: Set screw | Cr: 53 kN
UC 310Bore d: 50 mm | Locking: Set screw | Cr: 62 kN
UC 311Bore d: 55 mm | Locking: Set screw | Cr: 71.5 kN
UC 312Bore d: 60 mm | Locking: Set screw | Cr: 82 kN
UC 313Bore d: 65 mm | Locking: Set screw | Cr: 92.5 kN
UC 314Bore d: 70 mm | Locking: Set screw | Cr: 104 kN
UC 315Bore d: 75 mm | Locking: Set screw | Cr: 113 kN
UC 316Bore d: 80 mm | Locking: Set screw | Cr: 123 kN
UC 317Bore d: 85 mm | Locking: Set screw | Cr: 133 kN
UC 318Bore d: 90 mm | Locking: Set screw | Cr: 143 kN
UC 319Bore d: 95 mm | Locking: Set screw | Cr: 153 kN
UC 320Bore d: 100 mm | Locking: Set screw | Cr: 173 kN
UC 321Bore d: 105 mm | Locking: Set screw | Cr: 184 kN
UC 322Bore d: 110 mm | Locking: Set screw | Cr: 205 kN
UC 324Bore d: 120 mm | Locking: Set screw | Cr: 207 kN
UC 326Bore d: 130 mm | Locking: Set screw | Cr: 229 kN
UC 328Bore d: 140 mm | Locking: Set screw | Cr: 253 kN
UK 205Bore d: 25 mm | Locking: Tapered bore (adapter) | Cr: 14 kN
UK 206Bore d: 30 mm | Locking: Tapered bore (adapter) | Cr: 19.5 kN
UK 207Bore d: 35 mm | Locking: Tapered bore (adapter) | Cr: 25.7 kN
UK 208Bore d: 40 mm | Locking: Tapered bore (adapter) | Cr: 29.1 kN
UK 209Bore d: 45 mm | Locking: Tapered bore (adapter) | Cr: 31.5 kN
UK 210Bore d: 50 mm | Locking: Tapered bore (adapter) | Cr: 35 kN
UK 211Bore d: 55 mm | Locking: Tapered bore (adapter) | Cr: 43.5 kN
UK 212Bore d: 60 mm | Locking: Tapered bore (adapter) | Cr: 52.5 kN
UK 213Bore d: 65 mm | Locking: Tapered bore (adapter) | Cr: 57.5 kN
UK 215Bore d: 75 mm | Locking: Tapered bore (adapter) | Cr: 66 kN
UK 315Bore d: 75 mm | Locking: Tapered bore (adapter) | Cr: 113 kN
UK 316Bore d: 80 mm | Locking: Tapered bore (adapter) | Cr: 123 kN
UK 317Bore d: 85 mm | Locking: Tapered bore (adapter) | Cr: 133 kN
UK 318Bore d: 90 mm | Locking: Tapered bore (adapter) | Cr: 143 kN
UK 319Bore d: 95 mm | Locking: Tapered bore (adapter) | Cr: 153 kN
UK 320Bore d: 100 mm | Locking: Tapered bore (adapter) | Cr: 173 kN
UK 322Bore d: 110 mm | Locking: Tapered bore (adapter) | Cr: 205 kN
UK 324Bore d: 120 mm | Locking: Tapered bore (adapter) | Cr: 207 kN
UK 326Bore d: 130 mm | Locking: Tapered bore (adapter) | Cr: 229 kN
UK 328Bore d: 140 mm | Locking: Tapered bore (adapter) | Cr: 253 kN
EW 204Bore d: 20 mm | Locking: Eccentric collar | Cr: 12.8 kN
EW 205Bore d: 25 mm | Locking: Eccentric collar | Cr: 14 kN
EW 206Bore d: 30 mm | Locking: Eccentric collar | Cr: 19.5 kN
EW 207Bore d: 35 mm | Locking: Eccentric collar | Cr: 25.7 kN
EW 208Bore d: 40 mm | Locking: Eccentric collar | Cr: 29.1 kN
EW 209Bore d: 45 mm | Locking: Eccentric collar | Cr: 31.5 kN
EW 210Bore d: 50 mm | Locking: Eccentric collar | Cr: 35 kN
EW 211Bore d: 55 mm | Locking: Eccentric collar | Cr: 43.5 kN
EW 212Bore d: 60 mm | Locking: Eccentric collar | Cr: 52.5 kN
EW 305Bore d: 25 mm | Locking: Eccentric collar | Cr: 20.6 kN
EW 306Bore d: 30 mm | Locking: Eccentric collar | Cr: 26.7 kN
EW 307Bore d: 35 mm | Locking: Eccentric collar | Cr: 33.5 kN
EW 308Bore d: 40 mm | Locking: Eccentric collar | Cr: 40.5 kN
EW 309Bore d: 45 mm | Locking: Eccentric collar | Cr: 53 kN
EW 310Bore d: 50 mm | Locking: Eccentric collar | Cr: 62 kN
EW 311Bore d: 55 mm | Locking: Eccentric collar | Cr: 71.5 kN
EW 312Bore d: 60 mm | Locking: Eccentric collar | Cr: 82 kN
EW 313Bore d: 65 mm | Locking: Eccentric collar | Cr: 92.5 kN
UB 201Bore d: 12 mm | Locking: Set screw, light | Cr: 9.55 kN
UB 202Bore d: 15 mm | Locking: Set screw, light | Cr: 9.55 kN
UB 203Bore d: 17 mm | Locking: Set screw, light | Cr: 9.55 kN
UB 204Bore d: 20 mm | Locking: Set screw, light | Cr: 12.8 kN
UB 205Bore d: 25 mm | Locking: Set screw, light | Cr: 14 kN
UB 206Bore d: 30 mm | Locking: Set screw, light | Cr: 19.5 kN
UB 207Bore d: 35 mm | Locking: Set screw, light | Cr: 25.7 kN
EN 201Bore d: 12 mm | Locking: Eccentric collar, light | Cr: 9.55 kN
EN 202Bore d: 15 mm | Locking: Eccentric collar, light | Cr: 9.55 kN
EN 203Bore d: 17 mm | Locking: Eccentric collar, light | Cr: 9.55 kN
EN 204Bore d: 20 mm | Locking: Eccentric collar, light | Cr: 12.8 kN
EN 205Bore d: 25 mm | Locking: Eccentric collar, light | Cr: 14 kN
EN 206Bore d: 30 mm | Locking: Eccentric collar, light | Cr: 19.5 kN
EN 207Bore d: 35 mm | Locking: Eccentric collar, light | Cr: 25.7 kN

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