Century® Ninja Pro® 30-46 Replacement RC Helicopter Parts

A selection of replacement parts for Century®. These parts are not original parts unless otherwise stated in the descriptions. Please check your choices thoroughly.

Add the quantities required for each item, then click "Add to Cart" before proceeding to the next page

Replacement Parts Price Quantity
Single Row Ball Bearings - 3x6x2.5 mm - Stainless Steel AISI 440C - Replaces -
BB 3-6-2.5
Replacement Bearing - Stainless Flanged Bearing Shielded Option

Replacement Part: SFMR63A-ZZ-MC3 (Each)
Double shielded flanged stainless steel bearing

Single Row Ball Bearings - 3x6x2.5 mm Flanged - Stainless Steel AISI 440C Bearing

$2.95 $8.22
1 Available Now -> Only the available quantity may be ordered online. No backorders.
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Single Row Ball Bearings - 3x7x3 mm - Stainless Steel AISI 440C - Replaces -
BB 3-7-3
Replacement Bearing - Stainless Flanged Bearing Shielded Option

Replacement Part: SF683A-ZZ-MC3 (Each)
Double shielded flanged stainless steel bearing

Single Row Ball Bearings - 3x7x3 mm Flanged - Stainless Steel AISI 440C Bearing

$8.50
74 Available Now -> Orders for more than 74 can be expected around Jul 08, 2026
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Single Row Ball Bearings - 3x8x3 mm - Chrome Steel SAE 52100 - Replaces -
BB 3-8-3
Bearing - Economy Bearing

Replacement Part: 693-ZZS-ECO (PK-2)
Double shielded economy bearing with a NON-ISO Width

Single Row Ball Bearings - 3x8x3 mm Unflanged - Chrome Steel SAE 52100 Bearing

$2.41
15 (30 pcs) Available Now -> Orders for more than 15 can be expected around Jul 02, 2026
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Single Row Ball Bearings - 4x8x3 mm - Stainless Steel AISI 440C - Replaces -
BB 4-8-3
Replacement Bearing - Stainless Flanged Bearing Shielded Option

Replacement Part: SFMR84A-ZZ-MC3 (Each)
Double shielded flanged stainless steel bearing

Single Row Ball Bearings - 4x8x3 mm Flanged - Stainless Steel AISI 440C Bearing

$12.32
Temporarily Out Of Stock -> More due: Jun 10, 2026 -> Orders for more than 0 can be expected around Jul 08, 2026
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Single Row Ball Bearings - 4x9x4 mm - Chrome Steel SAE 52100 - Replaces -
BB 4-9-4
Bearing - Economy Bearing

Replacement Part: 684A-ZZS-ECO (PK-5)
Deleted Item. Available while stocks last.

Single Row Ball Bearings - 4x9x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.49 $5.89
4 (20 pcs) Available Now -> Only the available quantity may be ordered online. No backorders.
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Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100 - Replaces -
BB 4-10-4
Bearing - Economy Bearing

Replacement Part: MR104A-ZZ-ECO (PK-5)
Double shielded economy bearing

Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$5.32
27 (135 pcs) Available Now -> Orders for more than 27 can be expected around Jul 02, 2026
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Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Replacement Part: MR104A-ZZ-MC3 (Each)
Double shielded standard bearing

Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.59
72 Available Now -> Orders for more than 72 can be expected around Jul 08, 2026
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Single Row Ball Bearings - 4x10x4 mm - Chrome Steel SAE 52100
Replacement Part: MR104A-2RB-ECO (PK-10)
Deleted Item. Available while stocks last. Double blue rubber sealed economy bearing

Single Row Ball Bearings - 4x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$20.00 $38.00
18 (180 pcs) Available Now -> Only the available quantity may be ordered online. No backorders.
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Single Row Ball Bearings - 5x10x4 mm - Chrome Steel SAE 52100 - Replaces -
BB 4-8-3
Bearing - Standard Bearing

Replacement Part: MR105A-ZZ-MC3 (Each)
Double shielded standard bearing

Single Row Ball Bearings - 5x10x4 mm Unflanged - Chrome Steel SAE 52100 Bearing

$3.77
419 Available Now -> Orders for more than 419 can be expected around Jul 08, 2026
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Single Row Ball Bearings - 6x10x3 mm - Chrome Steel SAE 52100 - Replaces -
BB 6-10-3
Bearing - Economy Bearing

Replacement Part: MR106A-ZZS-ECO (PK-10)
Double shielded economy bearing

Single Row Ball Bearings - 6x10x3 mm Unflanged - Chrome Steel SAE 52100 Bearing

$10.32
22 (220 pcs) Available Now -> Orders for more than 22 can be expected around Jul 02, 2026
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Single Row Ball Bearings - 6x10x3 mm - Chrome Steel SAE 52100 - Replaces -
BB 6-10-3F
Replacement Bearing - Standard Flanged Bearing Shielded Option

Replacement Part: FMR106A-ZZS-MC3 (Each)
Double shielded flanged bearing

Single Row Ball Bearings - 6x10x3 mm Flanged - Chrome Steel SAE 52100 Bearing

$3.77
299 Available Now -> Orders for more than 299 can be expected around Jul 08, 2026
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Single Row Ball Bearings - 6x17x6 mm - Stainless Steel AISI 440C - Replaces -
BB 6-17-6
Bearing - Stainless Bearing

Replacement Part: S606-ZZ-MC3 (Each)
Double shielded standard stainless steel bearing

Single Row Ball Bearings - 6x17x6 mm Unflanged - Stainless Steel AISI 440C Bearing

$3.68
15 Available Now -> Orders for more than 15 can be expected around Jul 08, 2026
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Single Row Ball Bearings - 8x19x6 mm - Chrome Steel SAE 52100 - Replaces -
BB 8-19-6
Bearing - Economy Bearing

Replacement Part: 698-ZZ-ECO (PK-2)
Double shielded economy bearing

Single Row Ball Bearings - 8x19x6 mm Unflanged - Chrome Steel SAE 52100 Bearing

$4.23
27 (54 pcs) Available Now -> Orders for more than 27 can be expected around Jul 02, 2026
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